Plant Productions - Articles List

Effect of Potassium Nitrate and Phenyl Phthalamic Acid on Some of Quantitative and Qualitative Characteristics of Strawberry ‘Gaviota’

S M; M H; M S; S A

Volume 39, Issue 4 , March 2017, , Pages 43-52

https://doi.org/10.22055/ppd.2016.12427

Abstract

Background and objectives Proper plant nutrition is very important for high productivity and fruit quality. Strawberry has more need for potassium because this element is a major component ... Read More Background and objectives Proper plant nutrition is very important for high productivity and fruit quality. Strawberry has more need for potassium because this element is a major component of the fruit. Size, colour, and acidity of the fruit have a positive relation with potassium amount. Also, the phenyl phthalamic acid is a regulator that increases the working life of stigma and supports the better pollination, which results in a higher yield. This study was performed to increase the quantity and quality of strawberry fruits. Materials and Methods To study the effect of potassium nitrate and phenyl phthalamic acid on vegetative and reproductive growth of strawberry cv. Gaviota, a research was conducted as factorial experiment in a completely randomized design with three replications. Potassium nitrate (0, 1, 2 and 5 g.l-1) and phenyl phthalamic acid (0, 500, 1000 and 1500 mg.l-1) were sprayed on leaves and flowers, respectively. The parameters such as inflorescense and fruit number, yield per plant, fresh and dry weight of fruit, TSS, TA and N, P, K and Ca content of leaf and fruit were measured. Results The results showed that the use of 5 g.l-1 of potassium nitrate or 500 mg.l-1 phenyl phthalamic acid had the greatest effect on the fresh and dry weight of fruit. Also, potassium nitrate in concentration of 2 g.l-1 has a significant effect on the number of inflorescences and phosphorus of leaves and fruits. The highest number of fruits (26 fruits per plant) with 2 g.l-1 potassium nitrate and the highest yield per plant (541.2 g) and TSS juice (8.3) with 2 g.l-1 potassium nitrate + 500 mg.l-1 phenyl phthalamic acid were obtained. Discussion The phenyl phthalamic acid could increase fruit setting, which resulted in a yield increase too, especially when it was applied with potassium nitrate. In general, the use of potassium nitrate and phenyl phthalamic acid in concentration of 2 g.l-1 and 500 mg.l-1, respectively, resulted in increase of yield and qualitative and quantitative traits of strawberry.

Effect of Silver Nitrate on In vitro Propagation of Pomegranate (Punica granatum L.) cvs. ‘Malas Yazdi’ and ‘Robab’

babak valizadeh kaji; Ahmad Reza Abbasifar

Volume 39, Issue 4 , March 2017, , Pages 53-64

https://doi.org/10.22055/ppd.2016.12430

Abstract

Background and Objectives Traditional propagation method of pomegranate by hard wood and soft wood cuttings does not ensure disease-free and healthy plants and it depends on the season. ... Read More

Evaluative Effects of Brassinosteroid on Reduction of Harmful Effect of Chilling in Fruit Grape (Vitis vinifera L. Rishbaba) During Storage

BAHAREH GHORBANI; zahra pakkish

Volume 39, Issue 4 , March 2017, , Pages 65-78

https://doi.org/10.22055/ppd.2017.12528

Abstract

Background and Objectives Grapes are generally grown in different regions of Iran. Quality of table grapes is usually considered as a combination of appearance and flavor during shelf-life. ... Read More Background and Objectives Grapes are generally grown in different regions of Iran. Quality of table grapes is usually considered as a combination of appearance and flavor during shelf-life. Brassinosteroids are considered to be a class of plant polyhydroxysteroids and have been recognized as a new kind of phytohormones that play an essential role in plant development. Researchers studied the brassinosteroids levels in cucumber through a chemical genetics approach and found that BR levels were positively correlated with the tolerance to cold stresses. The objectives of this study were to evaluate the effects of BR on chilling d, lipid peroxidation content, and the induction of antioxidant enzymes, such as ascorbate peroxidase and superoxide dismutasein “Rish Baba” grape fruit during storage at 0-1 °C. Materials and methods Grape fruits were harvested and transported to the laboratory on the same day. The harvested fruits were washed, and dried in air. Grape fruits were treated with 0 (control), 0.75 and 1.5 milligram per liter brassinosteroid for 5 min and then stored at 0-1°C, 85-90 % relative humidity for 6 weeks. Characteristics such as chilling injury, ion leakage, lipid peroxidation, and activity of antioxidant enzymes were evaluated. Results Results showed that brassinosteroid significantly reduced the chilling injury, ion leakage, lipid peroxidation and hydrogen peroxide, in treated fruits, compared to control. According to these results, pH and ascorbic acid of treated and controlled fruits increased during storage while titratable acidity of fruits decreased. As for brassinosteroid treatment, the pattern of mentioned changes reduced lower than control. So, the activity of antioxidant enzymes of fruits treated with brassinosteroid highly increased compared to control during storage. Fruits treated with 1.5 mgL-1 brassinosteroid showed the best effect with lowest chilling injury. Discussion In the present study, the plant hormone BR was applied and the results indicated that BR significantly reduces CI of grape fruits during storage at 0-1 °C. Our finding was consistent with previous reports that exogenous application of BR is effective in protecting seedlings of rice, maize and cucumber against cold stress. CI occurrence is often accompanied by oxidative damage, which can be followed through lipid peroxidation content, since it is a final product of lipid peroxidation. In this study, there was a continuous increase in fresh tissue lipid peroxidation content in all fruits, but the application of BR significantly delayed the increase of lipid peroxidation. Moreover, the change in membrane permeability showed trends similar to lipid peroxidation content; that is, fresh tissue H2O2 content increased with storage duration, but BR markedly delayed the increase. BR has been considered to be involved in a network of interacting signal transduction pathways, which regulate defense responses to abiotic stress. When horticultural crops are exposed to severe abiotic stresses, including cold stress, large amounts of intracellular ROS are generated. The detoxification of ROS is dependent on antioxidant enzymes such as superoxide dismutase. The increase in these enzymes’ activity contributes to the adaptation of plants to cold stress and ameliorates oxidative damage such as lipid peroxidation and H2O2 content.

Chemical Composition Essential Oil of Hors Mint (Mentha longifolia) as a Rich Source of Pulegone From Five Wild Habitats of Fars Province

p a; m m; j v; a gh; gh d

Volume 39, Issue 4 , March 2017, , Pages 87-100

https://doi.org/10.22055/ppd.2016.12435

Abstract

Background and Objectives Horse Mint (Mentha longifolia synMentha sylvestris) is a valuable medicinal and aromatic plant belonging to Lamiaceae family. This plant has been used traditionally ... Read More

Investigating of Copper Effect on Growth and Physiological Characteristics of Nasturtium Officinale

M. T.; Ahmad Mohtadi; T. A.

Volume 39, Issue 4 , March 2017, , Pages 101-114

https://doi.org/10.22055/ppd.2016.12432

Abstract

Background and Objectives Environmental pollution is the result of industrial societies and industrialization of human society. Copper is an essential micronutrient for plants growth ... Read More Background and Objectives Environmental pollution is the result of industrial societies and industrialization of human society. Copper is an essential micronutrient for plants growth and development when the copper concentration in the water is high, as one of the most toxic heavy metals for living organisms. Some plants are known as copper accumulator. Watercress (Nasturtium officinale) is an aquatic plant species from Brassicaceae family. Greenhouse experiments have showed that watercress has high accumulation ability of some heavy metals. Material and methods This study aimed to examine the effects of copper on growth and physiological characteristics of Nasturtium officinale. Accordingly, effects of different levels of copper sulfate (0, 4, 8, 12, 16 µM) in N. officinale in a complete randomized design with three replications were studied. Rooted cuttings of N. officinale were transferred to hydroponic culture, in 1-L polyethylene pots containing a modified half-strength Hoagland’s solution. Nutrient solutions were renewed weekly and plants were grown in a growth chamber (20/15 °C day/night; light intensity 200 µE m-2 s-1, 16 h day-1; relative humidity 75 %). After 14 days of pre-culture, plants were exposed to different levels of copper sulfate. The plants were harvested for analysis after having grown in the test solution for 2 weeks. Results The results showed that in the 4 µM copper treatment, fresh and dry weight of shoots, shoot length, leaf area and RWC increased, but at higher concentrations (8, 12, 16 µM) these characteristics significantly decreased. The root and shoot copper concentrations consistently increased with increasing copper exposure. At the 16 µM of copper in the nutrient solution, the average of copper concentrations in root and shoot was 4210 and 558 µg/g d.w., respectively. According to the results, shoot copper concentration was lower than the root and very little of that was transferred into the shoot. Discussion In total, according to the results, copper sulfate significantly decreases the shoots and roots of fresh and dry weight as well as root length, shoot length and leaf area, and increases the total chlorophyll, but no significant effect on the amount of Protein, Carbohydrate, Anthocyanin and Carotenoid. Generally, the threshold of this plant is to 4 µM copper.

Assessment of Genetic Diversity of Some of Iranian Snake Melon (Cucumis melo var. flexuosus) Accessions Using Morphological Markers

Narges Dastranji; Abdolali Shojaeiyan; Mohsen Falahati-Anbaran; Sajad Rashidi-Monfared; Azam Nikzad-Gharehaghaji

Volume 39, Issue 3 , December 2016, , Pages 15-26

https://doi.org/10.22055/ppd.2016.12061

Abstract

Background and Objectives Local accessions have developed traits that may improve their ability to adapt to local invironmental conditions. These accessions may contain genes responsible ... Read More

Effects of Harvesting Time and Fruit Size on Physical and Biochemical Properties of Pomegranate Fruit cv. ‘Rabab Neiriz’ in Ghalletol-Baghmalak

Fatemh rashno nuzhad; norola moallemi; seyad mohamad hasan Mortazavi

Volume 39, Issue 3 , December 2016, , Pages 27-38

https://doi.org/10.22055/ppd.2016.12065

Abstract

Background and Objectives Pomegranate (Punica granatum) is a nonclimacteric fruit rcent respectively. In general, the results of the present study confirmed that the medium fruit size ... Read More

Genetic Diversity Mulberry Genotypes of Iran by Using Morphological

m fakhraei; r Tabar; m Sarsaiefi; a Fattie; Gh Abadozi; M Hajhasani; A Farhadi; Gh Khakizad; Z Azizi; B Samadi; M Kiani; A Mirakhorlee; N Foromadi; j Mzaffari; R Rafezi

Volume 39, Issue 3 , December 2016, , Pages 39-50

https://doi.org/10.22055/ppd.2016.12332

Abstract

Background and Objectives Mulberry (Morus spp.) is a tree of the family of Moraceae. There are 24 species of Morus and one subspecies, with 100 known varieties. The various methods ... Read More Background and Objectives Mulberry (Morus spp.) is a tree of the family of Moraceae. There are 24 species of Morus and one subspecies, with 100 known varieties. The various methods used in classification of Morus were mainly based on the conventional systematic studies and agronomic characters. Despite the widespread genetic diversity in Iranian mulberry tree, so far, the identification of these trees has not been selection, introduction and cultivation. In order to identify mulberry trees during 1387-1392, they were collected from different provinces (Tehran, Mazandaran, Kurdistan, Markazi, Khuzestan, Fars, West Azarbaijan, Isfahan, Hamedan, Khorasan, South Khorasan, Semnan, Ardabil, Kohgiluyeh and Boyer-Ahmad, East Azerbaijan) according to the IPGRI (International Institute for genetic reserves). The aim of this study was evaluation of genetic diversity and mulberry clustering genotypes, on the basis and quantitative characteristics and to determine the genetic distance between them. Material and Methods Mulberry trees are widely distributed in Iran. After reviewing the population of mulberry according to descriptor of IGPRI throughout the country, 118 specimens of mulberry from genotypes were selected and they were evaluated for their morphological characteristics. Some of these characters are quantitative and some others were measured and recorded based on coding UPOV. After collecting the data, descriptive statistics were extracted and analyzed. With the assumption of variance analysis distinguished genotypes into treatment and regions within each area as replication, design used nested. Mean comparison of quantitative traits LSD. Results The result of ANOVA showed average comparison of genotypes investigated difference was significant for all studied characteristics: the leaf margin, petiole length, flower diameter, which represent the coefficients of variation that were higher diversity among genotypes investigated. Therefore, there is the possibility of selecting genotypes for different values of an attribute. The characteristics that have high coefficients of variation are more diverse than the character coefficient with low variations. Discussions Analysis of simple correlation coefficients showed a significant positive correlation during the harvest time of fruit ripening r=0.82, the shape of inflorescence at the time of fruit ripening r=0.71, shape of inflorescence at the time of fruit ripening r=0.71 at 1% level. Brix with the shape by time of fruit ripening r=0.60 Brix of fruit shape r=0.28 fresh weight at the time of ripening r=0.81, significant positive correlations were calculated at 5% level. The results of mulberries ripen over an extended period of time unlike many other fruits. Using cluster analysis to the “Ward” based on morphological characterization at a distance of 15; genotypes were divided in three main groups. In order to determine the most important morphological characters to differentiate among the population of principal component analysis was used (PCA).The first components to 0.65 percent of total respectively. Overall, the results showed that great morphological variation among the plants population.

Allelopathic Effect of Aqueous and Methanol Extract of Ferula Foetida on Tomato (Lycopersicun escolentum) Seed Germination

Gh Taheri

Volume 39, Issue 3 , December 2016, , Pages 65-76

https://doi.org/10.22055/ppd.2016.12333

Abstract

Background and Objectives Allelopaty is regarded as a natural protecting strategy involving plant secoundary metabolites that influence the growth and development of surrounding biological ... Read More Background and Objectives Allelopaty is regarded as a natural protecting strategy involving plant secoundary metabolites that influence the growth and development of surrounding biological system. Determining the mode of action of secondary metabolites as allelochemicals is one of the challenging aspects in allelopathic research. Today, allelochemicals have been proposed to cause oxidative stress in some of neighbor plants and inhibited their cell proliferation; however, its mechanism of action remains unexplored. The aim of the present study was to investigate the phytotoxic effect of leaf aqueous and methanol extract of Ferula foetida on physiological and biochemical processes during germination of tomato seeds. Material and Methods Effects of allelochemicals extracted from Ferula foetida on tomato (Lycopersicun escolentum) seed germination were investigated. For these purposes, a factorial experiment was conducted in a completely randomized design with four replications in plant physiology laboratory of Islamic Azad University, Neyshabur Branch. The first factor included allelopatic materials in three levels including 10% aqueous and methanolic extract of Ferula foetida(gathered in early vegetative growth period), and control and the second factor was time of sampling in 5 levels including sampling in 24,48,72,96 and 120 hours after imbibition. Results The results showed that tomato seed viability, Malondialdehyde (MDA) content, hydrogen peroxide and antioxidative enzyme activity such as Superoxide dismutase (SOD), Catalase (CAT), Ascorbate peroxidase (APX) and Polyphenol oxidase (PPO) were significantly affected by treatment. In the earliest time of imbibition, both aqueous and methanol extracts, the activity of APX of tomato seed was the lowest, while the PPO showed the highest activity. The highest loss of seed viability, H2O2 and MDA, was in the seed treated with aqueous extract after 120 h, and the highest activity of antioxidative enzymes was in 72 h after exposure to water extract phytotoxins. Discussions Our results showed that despite the activation of the antioxidant system by Ferula foetida phytotoxic, reactive oxygen species accumulation caused cellular damage which resulted in decrease of gradual loss of tomato’s seed viability. In addition, this study demonstrated that aqueus and alcholic extraction materials from Ferula foetida exhibited cosiderable allelochemical potential. Therfore, this compound could be utilized to generate a new generation of herbicidees that are more ecologically friendly.

Summer-Pruning and Preharvest Calcium Chloride Sprays Affect Storability in Kiwifruit cv. Hayward

Z Nazari; KH Hemmati; Rabiei Rabiei; M Alhzadeh; Y.Gh Khazayipol

Volume 39, Issue 3 , December 2016, , Pages 77-90

https://doi.org/10.22055/ppd.2016.12334

Abstract

Background and objectives Kiwifruit is a good source of natural antioxidant substances, in particular vitamin C. The studies on kiwifruit post harvest handling and storability would ... Read More Background and objectives Kiwifruit is a good source of natural antioxidant substances, in particular vitamin C. The studies on kiwifruit post harvest handling and storability would be helpful in marketability of high quality fruits and indeed it would be beneficial to our country’s economy. In order to examine the effects of summer pruning combined with calcium chloride spray and duration of storage on some quality features of kiwifruit, the present research was undertaken as a complete block design in factorial arrangement with four replications. Materials and methods The project was conducted during 2008-9 in a commercial orchard in Chalos, Iran. The CaCl2 was applied in four concentrations (0, 0.5, 1.0 and 1.5 %) and pruning was carried out in four levels including no pruning, leaving 2, 4, 8 leaves after the last fruit. Storage period included four levels between two to six months. Result It was found that, summer pruning could increase calcium content of pulp. The total soluble solids decreased by pruning treatments but no significant changes were recorded for other quantitative traits. Calcium chloride applications significantly enhanced calcium content of pulp section (p<0.001). Furthermore, the interaction of calcium chloride and time may significantly influence firmness, vitamin C content, pH, total acidity and total soluble solids. Maximum total acidity (1.118 g/100 ml), vitamin C content (60.111 mg/100 ml) was observed following spraying 1% CaCl2. Also, the lowest pH (3.445) and total soluble solids (12.7%) and maximum firmness (1.475) were recorded following application of 1.5% CaCl2, six months after storage. Discussions The results showed that the treatments had a significant effect on some traits and summer pruning improves fruit calcium's. Absolute increasing on fruit calcium density means sprayed calcium can penetrate in fruit epiderm and it can be because of weakness in cell membrane during development that can simplify calcium penetration. Also, summer pruning can increase fruit quality and improving antioxidant system and vitamin C by effect on light and air circulate in tree canopy and can increase calcium density in fruit texture by enhancing transpiration in fruits, because cutting the end part of developing shoots make reduction in competition between element absorption especially calcium element and make it flowed to set fruit.

Evaluation of Culture Media Including Vermicompost, Compost and Manure under Drought Stress in Iranian Petunia (Petunia hybrida)

M Goldani; M Kamali

Volume 39, Issue 3 , December 2016, , Pages 91-100

https://doi.org/10.22055/ppd.2016.12335

Abstract

Background and Objectives Organic fertilizers are derived from animal matter, human excreta or vegetable matter. (e.g. compost, manure). Organic fertilizers are carbon-based compounds ... Read More Background and Objectives Organic fertilizers are derived from animal matter, human excreta or vegetable matter. (e.g. compost, manure). Organic fertilizers are carbon-based compounds that increase the productivity and growth quality of plants. Organic fertilizers preserve food cycle; reduce pollution and remediation of soil physicochemical properties and stabilization of plants in soil. Use of these organic fertilizers ensures that the food items produced are free of harmful chemicals. As a result, the end consumers who eat these organic products are less prone to diseases such as cancer. In addition to the on-farm production possibilities of organic fertilizers, organic fertilizers help in maintaining the soil structure and increasing its nutrient-holding capacity. Organic fertilizers are easily bio-degradable and do not cause environmental pollution. On the other hand, chemical fertilizers contaminate both the land and water, which is a major cause of diseases for human beings and is the force behind the extinction of a number of plant, animal, and insect species. Material and Methods In order to investigate the effect of organic fertilizers (vermicompost, compost and manure) on morpho physiological characteristics of Petunia hybrida an experiment based on a completely randomized design with three replications was conducted at the Ferdowsi University of Mashhad.Irrigation treatments consisted of three levels (100 % of field capacity by irrigation at a rate of 360 cc (D1), 50% of field capacity by as much as 180 cc (D2) and 25 % of field capacity by as much as 90 cc (D3 )), and four fertilizer treatments (control, compost, vermicompost and manure). Some traits such as stem fresh weight leave fresh weight, flower fresh weight, length, diameter and number of flowers, SPAD index, leaf area, relative water content and membrane stability index were measured. Results The results showed that effects of the treatments on traits such as flower fresh weight, length, diameter and number of flowers, SPAD index, relative water content and membrane stability index were significant at 1% level. The interaction of two factors on traits such as stem and flower fresh weight, flower number, leaf area, leaf fluorescence, relative water content and membrane stability index was significant. Thus the weight of a single flower per plant increased with the application of vermicompost fertilizers, compost and manure, respectively, 16/26, 65/9 and 40/8% over control at 100% capacity. Irrigation with treated manure at 25% field capacity (D3) increased length of flower over 14% compared to control. In 50% of field capacity (D2) with vermicompost in the context of the membrane stability index was 62% which, compared to control treatments at the same level of irrigation, was increased by 67%. Use of manure and vermicompost seems to improve adverse effects of drought stress. Discussions Manure and vermicompost improves soil aeration, enriches soil with micro-organisms (adding enzymes such as phosphatase and cellulase), Enhances germination, plant growth, and crop yield and also improves water holding capacity.

Increasing the Expression of Genes Chavicol O-Methyl Teransferase and Cinnamate 4-Hydroxilase under Methyl Jasmonate Treatment in Medicinal Plant Basil (Ocimum basilicum L.)

Leyla Hassani; Babak Abdollahi Mandoulakani; Reza Darvishzadeh; Abbas Hassani

Volume 39, Issue 3 , December 2016, , Pages 101-112

https://doi.org/10.22055/ppd.2016.11961

Abstract

Background and Objectives Basil is a rich source of phenylpropanoids and enzymes Chavicol o-methyl transferase and cinnamate 4-hydroxylase are involved in the biosynthesis of these ... Read More

Effect of Foliar Spray with Ascorbic acid on Some Qualitative Characteristics and Improving Color of Apple Fruit (Malus domestica cv. Red Spur)

Alireza Farokhzad; m Asghari

Volume 39, Issue 3 , December 2016, , Pages 113-125

https://doi.org/10.22055/ppd.2016.12062

Abstract

Background and Objectives Low quality of fruits is one of the most important problems in marketing of apple fruits. Recently the use of organic compounds such as ascorbic acid in order ... Read More

Effect of Clone and Growth Regulators on Callus and Bulblet Formation Using Daughter Bulb Explants of Fritillary (Fritillaria imperialis L.)

Saadollah Alizadeh Ajirlo; mohammad kargar

Volume 39, Issue 2 , September 2016, , Pages 81-94

https://doi.org/10.22055/ppd.2016.12058

Abstract

Introduction: Micropropagation is the best approach to propagation of Fritillaria and prevention of its extinguishing. The effects of auxin and cytokinin combinations on callus and ... Read More Introduction: Micropropagation is the best approach to propagation of Fritillaria and prevention of its extinguishing. The effects of auxin and cytokinin combinations on callus and bulblet production using explants taken from daughter bulb scale of two fritillary clones collected from Arjan and Koohrang plains of Fars province were studied.Materials and methods: For this purpose, 3 types of growth regulator combinations containing three levels of NAA (0, 0.5 and 1 mg L-1) with one of the cytokines (2ip, Kinetin and TDZ) at three levels (0.5, 1.0 and 2 mg L-1) were applied. The base medium was MS containing 4.5 percent sucrose and 8 g/l agar. To evaluate the effects of these factors, experimental design of completely randomized factorial with 4 replications and 5 explants per repeat was used. Background and Objectives Micropropagation is the best approach to propagation of Fritillaria and prevention of its extinction. The effects of auxin and cytokinin combinations on callus and bulbletproduction using explants taken from daughterbulb scale of two fritillary clones collected from Arjan and Koohrang plains of Fars province were studied. Materials and methods For this purpose, 3 types of growth regulator combinations containing three levels of NAA (0, 0.5 and 1.0 mg L-1) with one of the cytokines (2ip, Kinetin and TDZ) at three levels (0.5, 1.0 and 2.0 mg L-1) were applied. The base medium was MS containing 4.5 percent sucrose and 8 g/l agar. To evaluate the effects of these factors, an experimental design of completely randomized factorial with 4 replications and 5 explants per repeat was used. Results Analysis of data revealed that the kinetin and 2ip had no significant effect on callus induction percentage while TDZ was significant on this parameter. The highest callus production was observed in medium containing 0.5 mg L-1 NAA combined with 0.5 mg L-1 TDZ. Using this treatment, 60 percent of explants produced the callus. The most number of direct and indirect regenerated bulblets were recorded in medium complemented with 1.0 mg/l NAA and 1.0 mg L-1 Kinetin. The mean of 5.5 bulbletper explants was obtained in this treatment. Discussion Considering the effectiveness and cost of NAA and environmental issues, its lower concentration is recommended for bulblet regeneration in this plant.

Relationship between accumulation of nitrogen compounds and sugars, and salt tolerance in rapeseed plant (Brassica napus L.)

V. Atlassi Pak; M. Nabipour; M. Meskarbashee

Volume 39, Issue 1 , June 2016, , Pages 1-1

https://doi.org/10.22055/ppd.2016.11951

Abstract

Abiotic stresses, like salinity, cause an increase in nitrogen compounds such as proline and soluble proteins in plant. In order to investigate the role of these compounds in salt tolerance, ... Read More

The Effect of Irrigation Intervals on Quantitative and Qualitative Yields of Two Savory Species (Satureja khuzestanica and S. rechingeri)

A Nooshkam; N Majnoun hoseini2; J. Hadian3; M.R. Jahansooz; K Khavazi5; A. Salehnia; S. Hedayatpour

Volume 39, Issue 1 , June 2016, , Pages 11-20

https://doi.org/10.22055/ppd.2016.12039

Abstract

Background and Objectives Satureja khuzestanica and satureja rechingeri are two valuable and endemic medicinal species that grow widely in southwest parts of Iran. These species are ... Read More Background and Objectives Satureja khuzestanica and satureja rechingeri are two valuable and endemic medicinal species that grow widely in southwest parts of Iran. These species are rich in phenolic compound caracole; therefore, they have considerable biological activities. In order to evaluate the quantitative and qualitative yields of two savory species (Satureja khuzestanica and S. rechingeri) in different irrigation intervals, an experiment was carried out in the west of Lorestan (Kashkan) during the growing season of 2012-2013. Materials and methods The Experiment was conducted on the basis of split-plot design in completely randomized block design with three replicates. Irrigation treatments (15 and 30 days interval and rainfed) as the main-plot and species in two levels (Satureja khuzestanica and satureja rechingeri)as the sub-plot were carried out. The characteristics measured were leaf and flower yield, essential oil content, essential oil yield, essential oil compositions, leaf area index and plant height. Results Results showed that the effect of irrigation treatments on all traits except for essential oil compositions was significant. The effect of species on essential oil content and essential oil yield was significant. Mean comparison of traits showed that by increasing in irrigation intervals, leaf and flower yield, essential oil content, essential oil yield, leaf area index and plant height of both summer savory species were decreased amount of by 73, 23, 78, 80 and 33%, respectively compared to control (Irrigation interval of 15 days). Between species, essential oil content (3/7%) and essential oil yield (100/2 kg.ha-1) of rechingeri species were more than essential oil content (2/03%) and essential oil yield (62/2 kg.ha-1) of khuzestanica species. Discussion The leaf and flower yield, essential oil content, essential oil yield, leaf area index of both summer savory species were decreased by increasing irrigation intervals and rainfed cultivation. Trend of changes in essential oil yield was similar to leaf and flower yield, In other words, the essential oil yield was further affected by the herb yield (leaf and flower yield).

The Role of Covering and Antitranspirant substances on Control of Date Bunch Fading in Mazafati Cultivar

A. Shoorabadi; M.H. Shamshiri; M. najafinia; S.H. Mirdehghan

Volume 39, Issue 1 , June 2016, , Pages 47-64

https://doi.org/10.22055/ppd.2016.12041

Abstract

Background and Objectives The phenomenon of date-bunch fading is one of the most important problems of some Iranian date producers. This disorder causes fruit shrinkage at the stage ... Read More

Efficiency of Ag-coated TiO2 Nanostructure Photocatalytic Reaction on Delay of Postharvest Tomato Ripening

F. Goodarzi

Volume 39, Issue 1 , June 2016, , Pages 79-88

https://doi.org/10.22055/ppd.2016.12043

Abstract

Background and Objectives Tomato is a climacteric vegetable crop with a high ability of ethylene production. Approximately, 30% of tomatoes is lost during the harvest to consumption ... Read More

Effects of Planting Date and Nutrition Solution Concentration on Yield and Quality Properties of Strawberry Fruit CV Camarosa Grown in Ahvaz Condition

S. Pourmombeini; S.M.H. Mortazavi; N. Moallemi; A. Mozaffari; A.A. Moezzi

Volume 38, Issue 4 , March 2016, , Pages 13-24

https://doi.org/10.22055/ppd.2016.11829

Abstract

This research was done to evaluate the effects of planting date and concentration of Hoagland nutrition solution on the yield and quality of strawberry fruit cv. Camarosa grown in Shahid ... Read More

Effects of Calcium Nitrate on Nitrate Reductase Activity, Amino Acids, Nitrate and Ion Accumulation of Pistacia Vera L., Badami Zarand, Under Sodium Chloride Stress

S. Nasseri Khollari; M. Heydari; S. Jafari; M.H. Daneshvar

Volume 38, Issue 4 , March 2016, , Pages 35-48

https://doi.org/10.22055/ppd.2016.11833

Abstract

Nitrogen is considered as an essential nutrient for plants and could be taken up in large amounts by plants. Nitrogen fertilizers are known to have beneficial effects when added to ... Read More

Effects of Mycorrhiza, Phosphatic Biofertilizer on Photosynthetic Pigments and Yield in Coriander (Coriandrum Sativum L.)

A. Bastami; M. Majidian

Volume 38, Issue 4 , March 2016, , Pages 49-60

https://doi.org/10.22055/ppd.2016.11841

Abstract

In order to investigate the effects of mycorrhizal fungi, phosphatic biofertilizer and manure application on yield and quantitative and qualitative criteria of coriander an experiment ... Read More

Investigating on the Effect of Wax Coating and Different Concentrations of Putrescine on Quantitative and Qualitative Characteristics of ‘Kara’ Mandarin During Storage

A. Ramezanian; F. khorram; A. Ahmadpoor

Volume 38, Issue 4 , March 2016, , Pages 61-70

https://doi.org/10.22055/ppd.2016.11842

Abstract

In order to investigate the effect of different concentrations of putrescine and wax coating on qualitative and quantitative characteristics of ‘Kara’ mandarin in storage, ... Read More

Effect of Irrigation Interval and Nitrogen Fertilizer on Seed Yield and Pigment Contents in Dill

M. Amiri; S. Mansoorifar; K.S. Asilan; H. Heidari

Volume 38, Issue 4 , March 2016, , Pages 71-80

https://doi.org/10.22055/ppd.2016.11843

Abstract

In order to determine the optimum irrigation interval and nitrogen fertilizer rate for dill in Kermanshah climate conditions, an experiment was conducted as split plot design with three ... Read More

Biochemical and Physical Changes in Some West Part of Iran Pear Cultivars During Storage

M. Koushesh Saba; S. Moradi

Volume 38, Issue 4 , March 2016, , Pages 81-92

https://doi.org/10.22055/ppd.2016.11844

Abstract

Abstract Many pear genotypes and cultivars exist in the west part of Iran. Some of these cultivars have has unique nutritional or storage ability traits. The current study was carried ... Read More

Effect of Ovary Conditioned Medium on Callogenesis and Gametic Embryogenesis in another Culture of Different Cultivars of Cucumber (Cucumis Sativus L.)

S. Najafi; M.R. Abdollahi; H. Sari Khani; S.S. Moosavi

Volume 38, Issue 4 , March 2016, , Pages 105-116

https://doi.org/10.22055/ppd.2016.11846

Abstract

In this research, the effect of ovary co-culture on androgenesis efficiency in anther cultures of four cultivars of cucumber was studied. A factorial experiment based on Completely ... Read More

Volume 47 (2024)

Volume 46 (2023)

Volume 45 (2022)

Volume 44 (2021)

Volume 43 (2020)

Volume 42 (2019)

Volume 41 (2018)

Volume 40 (2017)

Volume 39 (2016)

Volume 38 (2015)

Volume 37 (2014)

Volume 36 (2013)

Volume 35 (2012)

Volume 34 (2011)

Volume 33 (2010)

Volume 32 (2009)

Main Subjects = H: Horticulture

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