Plant Productions

Effect of humic acid and seaweed extract application on some biochemical traits of quinoa (Chenopodium quinoaWilld.) in the condition of interruption of irrigation in two places of Kermanshah province

Ghobad Mohamadpoor; salim farzaneh; saeed khomari; seyedeh yalda Raeisi Sadati; Raouf Seyed Sharifi; Behrooz Smaielpoor; kianoosh azashab

Articles in Press, Accepted Manuscript, Available Online from 02 December 2024

https://doi.org/10.22055/ppd.2024.46890.2168

Abstract

Introduction: Due to its high protein content, the balance of essential amino acids such as lysine and plant tryptophan with great nutritional value, quinoa can be a suitable substitute ... Read More Introduction: Due to its high protein content, the balance of essential amino acids such as lysine and plant tryptophan with great nutritional value, quinoa can be a suitable substitute for rice, so the development and cultivation of this product is very important. Since our country is located in an arid and semi-arid region and the amount of evaporation and transpiration is higher than the amount of rainfall, the planted crops suffer from drought stress especially at the end of the season, so the use of natural fertilizers such as seaweed extract and humic acid can be suitable in adjusting the effect of stress. Materials and Methods: This experiment was conducted in order to evaluate some biochemical indices of quinoa under the condition of irrigation interruption in two locations with hot climate (Qasar Shirin) and cold climate (Dalaho) in Kermanshah province in it was implemented as a split plot in the form of a randomized complete block design in the 2018-2018 crop year. The main plots of irrigation treatment were at three levels (complete irrigation, stop irrigation at the beginning of flowering and the beginning of seeding) and the sub-plots of foliar spraying at five levels of seaweed extract at two levels (2.5 g/L and 3.57 g/L), humic acid at two levels (3.75 g/L and 5 g/L) along with a control treatment (solution spraying with pure water).. Results and Discussion: The results showed that stopping irrigation caused a decrease in the concentration of photosynthetic pigments chlorophyll a, chlorophyll b and carotenoid, the amount of protein and the relative water content of quinoa plant leaves compared to full irrigation. Also, under stress conditions, proline content and electrolyte leakage from the cell membrane, the activity of antioxidant enzymes superoxide dismutase, catalase and peroxidase increased. The use of seaweed extract and humic acid reduced the effect of irrigation interruption, so that the highest amount of chlorophyll a (1.760 mg/g), chlorophyll b (0.989 mg/g), carotenoid (0.291 mg/g), protein (1.40 mg/g) and the relative water content in foliar application was 3.75 g/L of seaweed extract. The effects of interruption of irrigation were greater in Qasr-Shirin hot location and the greatest effect of drought stress was observed in the phase of interruption of irrigation at the beginning of flowering. Conclusions: In general, these findings showed that foliar spraying with seaweed extract and humic acid can be used as an efficient and environmentally friendly strategy to reduce the adverse effects of irrigation interruption on Koshia plant. Conclusions: In general, these findings showed that foliar spraying with seaweed extract and humic acid can be used as an efficient and environmentally friendly strategy to reduce the adverse effects of irrigation interruption on Koshia plant.Conclusions: In general, these findings showed that foliar spraying with seaweed extract and humic acid can be used as an efficient and environmentally friendly strategy to reduce the adverse effects of irrigation interruption on Koshia plant.Conclusions: In general, these findings showed that foliar spraying with seaweed extract and humic acid can be used as an efficient and environmentally friendly strategy to reduce the adverse effects of irrigation interruption on Koshia plant.

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The effect of salinity stress and the application of silver nanoparticles on flowering and some physico-biochemical characteristics of French parsley (Tagetes patula L.)

Khatoun Behzad; Abdollah Ehtesham Nia; Mohamadreza Raji; Hasan Moumivand; Majid Alikhani-Koupaei

Volume 47, Issue 2 , August 2024, , Pages 275-291

https://doi.org/10.22055/ppd.2024.45252.2130

Abstract

IntroductionSalinity stress leads to ion toxicity and osmotic stress. Salinity stress through the osmotic mechanism, due to the reduction of the osmotic potential of the soil solution, ... Read More IntroductionSalinity stress leads to ion toxicity and osmotic stress. Salinity stress through the osmotic mechanism, due to the reduction of the osmotic potential of the soil solution, causes disturbances in transpiration and photosynthesis. The mechanism of action of ionic toxicity is also related to ion absorption and changes in physiological processes caused by toxicity, deficiency or change in the balance of mineral elements. In the last decade, the tendency to use metal nanoparticle compounds in agriculture and horticultural sciences has become popular. Researchers believe that silver nanoparticles are absorbed faster by plants due to their small size and high solubility, therefore, by using these materials, optimal conditions for plant growth are created and stress conditions are prevented in the plant.Materials and MethodsThe experiment was conducted in the greenhouse of Horticultural Science Department, Faculty of Agriculture located in Khorramabad city, Lorestan province in 2021. The experiment was conducted as a factorial in the form of a completely randomized design with four replications. The first factor was included salinity treatment at four levels (0, 25, 50 and 100 mM NaCl, respectively equivalent to 0.067, 2.450, 5.440 and 9.520 dS m-1) and the second factor was foliar application of nanosilver at 4 levels (0, 10, 50 and 100 ppm). Salinity treatments were started gradually with the application of low concentration of salt after establishing the plants in the pot. Nano silver foliar spraying was applied weekly for 5 times until the flowering stage. Foliar spraying with silver nanoparticles was done in 3 stages of four leaves, full growth and flowering.Results and DiscussionIn this study, application of nanosilver increased the quantitative and qualitative characteristics of parsley, including the fresh weight of the flower (by 2.23%). Nanosilver in concentrations of 10 and 50 mg/liter increases the relative content of leaf water (7.70%), the content of total phenol (5.96%), the content of total flavonoids (34.91%) and the amount of potassium in leaves (4.055 %) under salinity stress conditions. Additionally, the lowest amount of sodium leaf (0.162 %), ion leakage (25.44 %) and malondialdehyde (21.56 %) was observed in this treatment. Researchers believe that silver nanoparticles are absorbed faster by plants due to their small size and high solubility, therefore, by using these materials, optimal conditions for plant growth are created and any stressful conditions are prevented in the plant. Silver nanoparticles with suitable size and remarkable chemical stability remain in constant shape and size in solutions.ConclusionBased on the results observed in this study, the treatment of silver nanoparticles in concentrations of 10 and 50 ppm in the conditions of salinity stress, relative water content of leaves, potassium content of leaves, fresh and dry weight of flowers and time of budding and flowering were increased, while ion leakage, malondialdehyde, proline, total phenol and flavonoid content, and sodium content of leaves were decreased. Therefore, it can be stated that the application of silver nanoparticles in the form of foliar spraying at levels of 10 and 50 ppm can reduce the negative effects caused by salinity stress and improve the ornamental characteristics of parsley in 25 and 50 mM of salinity stress..

Effect of different levels of IBA and cutting positions on the rooting of greenhouse rose cv. “Cherry Brandy” (Rosa hybrida .) cuttings

Mohammad Reza Talebi; Mansour Matloobi; Sadolah Alizadeh; Mina Amani

Volume 46, Issue 4 , March 2024, , Pages 599-610

https://doi.org/10.22055/ppd.2024.44756.2121

Abstract

Introduction To evaluate the effect of different levels of IBA (0, 1000, 1500 and 2000 mg/L) and position of take cuttings (lower, middle and upper) on rooting of greenhouse ... Read More Introduction To evaluate the effect of different levels of IBA (0, 1000, 1500 and 2000 mg/L) and position of take cuttings (lower, middle and upper) on rooting of greenhouse rose cultivar cherry brandy. In general, the aim of the research is to determine the best level of IBA hormone for the rooting of greenhouse rose cuttings, the possible effect of the possible of the cutting on the rooting rate of the cuttings, to determine the most suitable level of the hormone and the location of the cutting to produce the desired aerial part of the resulting cutting, In addition, to evaluate the best level of the hormone determining the most suitable position for cutting is based on some physiological parameters such as the relative content of leaf water and the efficiency of maximum chlorophyll fluorescence. Materials and Methods To conduct the experiment, the mother plants were purchased from a commercial greenhouse in Bostan-Abad and transferred to the physiology laboratory. To conduct the experiment, rose cuttings with a length of 10 to 12 cm and a diameter of 2 to 3 mm were prepared, and after removing the lower leaves, at least two end leaves were left on the cutting. In this research, a factorial trial based on a randomized complete block design with three replications was used. The traits measured in this experiment were rooting percentage, root fresh weight, number of roots, root length, relative leaf water content and variable to maximum fluorescence ratio. Results and Discussion The results of the average data comparison showed that the highest rooting percentage of cuttings and root fresh weight were seen in the treatment of 1500 mg/L of IBA and in the cuttings of the lower and upper parts, respectively. The lowest rooting percentage of cuttings and root fresh weight were also observed in the cuttings taken from the upper of the branch without hormone application. The cuttings taken from the lower part of the branches at a concentration of 1500 mg/L of IBA had the highest number of roots, which did not show a significant difference with the middle cuttings of the branch at a concentration of 1500 mg/L and lower cuttings at a concentration of 2000 mg/L. The cuttings in the middle part produced the lowest number of roots in the control treatment. The cuttings taken from the middle and upper of the branch had the longest and shortest root length, respectively. The cuttings taken from the lower part of the branch at a concentration of 1500 mg/L and the middle part at a concentration of 2000 mg/L of hormone had the highest and lowest relative content of leaf water, respectively. The maximum variable chlorophyll fluorescence was observed in the cuttings taken from the lower part of the branch and treated with 1500 mg/L of hormone. The terminal cuttings also had the lowest variable chlorophyll fluorescence to the maximum under the absence of hormone application. Conclusion Finally, due to the fact that the concentration of 1500 mg/L and the lower cuttings had the highest percentage of rooting, root length, root fresh weight, relative leaf water content and maximum variable chlorophyll fluorescence. It should be the best type of cuttings and hormone concentration for the rooting of rose cuttings. At the highest concentration of indole butyric acid (2000 mg/L) in most cases, there was a significant difference in the rooting characteristics of rose cuttings compared to the concentration of 1500 mg/L. .

Effect of Biochar and Hydrogel on Morphophysiological and Biochemical Characteristics of Common Sage (Salvia officinalis L.) under Drought Stress

Shayesteh Ghias; Mostafa Shirmardi; Heidar Meftahizadeh; Maryam Dehestani Ardakani

Volume 45, Issue 1 , May 2022, , Pages 67-80

https://doi.org/10.22055/ppd.2021.36030.1962

Abstract

IntroductionDrought and low organic carbon content are two main problems for agriculture in arid and semiarid regions. Drought stress is responsible for at least 40% of crop losses ... Read More IntroductionDrought and low organic carbon content are two main problems for agriculture in arid and semiarid regions. Drought stress is responsible for at least 40% of crop losses in the world. The use of biochar (BC) and hydrogels can decrease adverse effects of drought on the plant. The objective of this study was to evaluate the effect of BC and hydrogel application on morphophysiological and biochemical parameters of Salvia officinalis L. under drought stress (DS). Materials and MethodsA factorial experiment with a randomized complete block design with three replicates was conducted in the research greenhouse of the Meybod industrial town in 1398/2018 to investigate the BC and hydrogel effects on the growth, physiological and biochemical characteristics of Salvia officinalis L. under drought stress condition. The BC and hydrogel was applied by mixing dry soil at rates of 0, 10, and 20 ton BC.ha-1, 100, and 200 kg hydrogel.ha-1 with three DS levels of D1 (irrigation in 80% field capacity (FC) as no-stress conditions), D2 (irrigation in 60% FC as mild-stress conditions) and D3 (irrigation in 40% FC as severe-stress conditions). The growth responses were examined included morpho-physiological (i.e., chlorophyll content, leaf area, relative water content (RWC), ion leakage (IL), and phytochemical (i.e., antioxidant activity (AA) and total phenolic content (TPC)) parameters. Results and DiscussionResults showed that drought stress significantly decreased growth parameters and RWC while increased IL, AA and TPC. Application of 200 kg hydrogel.ha-1 and 20 ton BC.ha-1 significantly increased chlorophyll index, root and shoot dry weight compared to the control under severe stress condition. At mild stress, all treatments significantly reduced the root:shoot ratio compared to the control. However, in severe stress, only application of 10 and 20 ton BC.ha-1 significantly reduced this parameter compared to the control. In no stress and sever stress, use of 200 kg hydrogel.ha-1 increased RWC in plant in comparison with control (15.9 and 5.1% respectively). Results indicated that 200 kg hydrogel.ha-1 and 20 ton BC.ha-1 treatments significantly decreased IL and TPC in mild and sever stress conditions in comparison with control. All treatments significantly decreased AA in severe stress and control has the highest amount of AA in this level of drought. It seems that use of BC and hydrogel in soil increased soil water holding capacity and improve soil structure. In addition, BC contains various elements that can improve plant nutrition under drought stress. The amount of BC and hydrogel application is very important on the effectiveness of these amendments on the plant characteristics under stress conditions. ConclusionThe application of hydrogel and biochar could improve the growth indices, leaf relative water content and reduce the total phenol concentration and antioxidant capacity in the plant under drought stress. It seems that these amendments reduce the negative effect of drought stress on the plant by increasing the soil water holding capacity, improving the structure and increasing the availability of nutrients for the plant.

The Effect of Foliar Application of Zinc Oxide and Nanoparticles Zinc Oxide on Some Growth Characteristics and Elemental Concentration of Rosemary under NaCl Salinity

Mohammad Bagher Hassanpouraghdam; Lamia Vojodi Mehrabani; Tahereh Shamsi Khotab

Volume 44, Issue 3 , December 2021, , Pages 421-432

https://doi.org/10.22055/ppd.2020.31067.1825

Abstract

AbstractIntroductionNowdays, one of the major environmental stresses challenging agricultural produce worldwide, is progressive soil salinity. The majority of the soils in the arid ... Read More AbstractIntroductionNowdays, one of the major environmental stresses challenging agricultural produce worldwide, is progressive soil salinity. The majority of the soils in the arid and semi-arid regions face salinity. This is a huge threat for agricultural sustainablitty. With salinity adding-up, plants growth and development greatly decline due to reduced osmotic potential, unbalanced nutrients available and the variations in the type and content of growth regulators which negatively influence the plant yield and productivity. Under salinity situations, using micronutrients plays a vital role in the tolerance of plant against ROS molecules. These nutrients motivate antioxidant enzymes and hence, improve plant responses to the ROS molecules generation. As a result, they improve the yield, quality and productivity of plants under stressful conditions. Materials and MethodsAn experiment was conducted to study the effects of NaCl salinity stress (0, 50, 100 and 150 mM) and Foliar application of common and Nono-form Zinc-oxide (0, 5 and 10 mg L-1) on Rosmarinus officinalis as factorial based on RCBD with three replications at 2017- 2018. Results and DiscussionThe results revealed the interaction effects of salinity levels and Zinc Foliar application on chlorophyll b content, N, P, K, Na and Zn content, leave relative water content as well as essential oil yield. The highest data for chlorophyll b was recorded with no stress × 10 mgL-1 Nono-zinc spray. Relative water content for both Zn forms (0, 5 and 10 mgL-1) was maximum with no salinity treatments. The greatest data for essential oil yield was traced with NaCl0 × 10 mgL-1 Nano-zinc and NaCl0× 10 mgL-1 Zinc Oxide. NaCl0× 5 mgL-1 Nano-Zinc increased K+content in plant. For Zn compositional content, the highest data was recorded with no-salinity × 5 and 10 mgL-1of Nano-Zinc as well as with no-salinity × 10 mg L-1 of common zinc source. Aerial parts dry weight and Fe and Mg content were affected by independent effects of salinity and Foliar application of Zn. Aerial parts dry weight and Mg content increased at no salinity stress and 50 mM salinity. Chlorophyll a and Fe content were influenced by the non salinity levels. Foliar application with 0 and 10 mg L-1nano-Zn increased Mg content in plants. Salinity is one of the predominant stressors influencing the plants throughout all their life cycle. The results revealed that salinity drastically influenced rosemary dry weight, photosynthetic pigments content, as well as Mn, Cu, and Fe content. Zn Foliar application improved aerial parts fresh weight and the content of Mg, Cu, and Fe. In general, rosmary is salinity tolerant up to 50 mM without significant reduction in yield component. Therefore, the Foliar application of Nano-Zinc as Oxide form improved yield and growth characteristics. ConclusionSalinity drastically influenced the growth and physiological responses of the plants. Using Foliar treatments was able to partially ameliorate the salinity adverse effects and, promoted the growth and productivity of rosemary. However, economical administration of Foliar treatments needs more in-depth studies.

The Effect of Dust Particles on Grain Yield and Some of the Physiological and Biochemical Characteristics of Wheat in West of Iran

Zeynab Sharifi; Mohsen Saeidi; Eiraj Nosrati; Hasan Heidary

Volume 42, Issue 2 , June 2019, , Pages 149-164

https://doi.org/10.22055/ppd.2019.21856.1470

Abstract

Abstract Background and Objectives In recent years, the desertification caused by climate change and human activity is one of the most important causes of dust particles. The ... Read More Abstract Background and Objectives In recent years, the desertification caused by climate change and human activity is one of the most important causes of dust particles. The occurrence of dust during the growth of crops (especially wheat) is one of the most substantial risks in crop production in western and southern regions of Iran. Thus, in these areas, an accurate estimate of dust-particle damage in crop production has great importance. Therefore, the study of the effects of dust particles on crop growth is very important. Materials and Methods In order to study the effects of dust on grain yield and physiological and biochemical traits of wheat, a factorial experiment based on randomized complete block design with four replications was conducted at the research field, the campus of agriculture and natural resources, Razi University, Kermanshah in 2013-2014. The first factor included two bread wheat cultivars (Pishgam and Zarin) and one durum wheat cultivar (Behrang) and the second factor was applied with the aim to simulate the effect of sprinkler irrigation on the removing of dust particles on the leaf surface with two levels: washing and non-washing treatments of wheat C. Results With respect to the results, in the canopy non-washing treatment, Pishtaz and Behrang cultivars had the highest (6.91 ton ha-1) and the lowest (4.97 ton ha-1) grain yield respectively. The canopy washing treatment compared to the non-washing treatment significantly increased grain yield (18% on average) and its components (without 1000 grains weight), biological yield, harvest index, and some physiological traits, including leaf photosynthesis rate, stomatal conductance, maximum efficiency of photosystem II, survival index, and some biochemical traits, such as leaf soluble proteins, chlorophyll a, chlorophyll b, and carotenoids, but it had no significant effect on transpiration rate. The lowest and the highest reduction in grain yield under air dust particles are related to Pishgam (13%) and Behrang (28%) respectively. Particles with 0.3 micrometers diameter or less formed most of the dust particles in the air. Discussion It seems that the deposition of this size of particles in stomata pores is the main reason for stomatal plugging, and therefore, the reduction in stomatal conductance and the reduction of leaf photosynthesis rate and the decrease of grain yield reduction. Stomatal plugging by dust particles may cause less water loss and the increase in relative water content as a result. These findings suggest that, in the case of dust-particle occurrence, leaf washing with sprinkler irrigation compared with traditional irrigation method may cause significant increase in grain yield and its components and physiological and biochemical traits in wheat in this area and similar areas.

Effect of Gamma-Amino-Butyric Acid Foliar Application on Physiological Characters of Tomato (cv. Namib) under Salinity Stress

L. Zarei; M. Koushesh Saba; Y. Vafaee; T. Javadi

Volume 41, Issue 1 , June 2018, , Pages 15-28

https://doi.org/10.22055/ppd.2018.13547

Abstract

Abstract Background and Objectives Salinity and salt accumulation in the soil surface is one of the most important abiotic stresses that limit agricultural crop production in ... Read More Abstract Background and Objectives Salinity and salt accumulation in the soil surface is one of the most important abiotic stresses that limit agricultural crop production in the arid and semi-arid regions of Iran. Thus, finding an alternative production technique or materials to alleviate stress condition is a research priority. One way to decrease the harmful effects of salinity is the foliar application of some chemicals such as Gamma-amino butyric acid (GABA) to increase plant tolerance to salinity. GABA is often accumulated in plants in response to live and non-live stresses such as drought, salinity, oxygen deficit, heat shocks and contamination of pathogens. Materials and Methods The current study was carried out to monitor the GABA effects on tomato physiological changes under salinity stress. The plants were grown in hydroponic system and received 0 and 50 mM NaCl as control and salinity stress, respectively. GABA at three concentrations 0, 10 and 20 mM was applied as a foliar application in either control or salinity treatments. Physiological characteristics of relative water content (RWC), membrane stability index (MSI), proline, total soluble protein (TSP) and enzymes activity, chlorophyll a, chlorophyll b, total chlorophyll and total soluble carbohydrates (TSC) were measured. Results The results showed that salinity stress and GABA were effective on the physiological characteristics of tomato. GABA can increase the tolerance of plants to environmental stresses, including salinity stress. MSI, chlorophyll a, total chlorophyll, carotenoids in salinity treatments were lower than control while TSC, proline, peroxidase and SOD increased. RWC, MSI, proline, TSC of GABA treated plant were greater than untreated in either salinity or control conditions. Also, SOD and peroxidase activity elevated in GABA treated plant under salinity stress. Discussion GABA increased antioxidant capacity in the plant and thus might eliminate radicals and prevents the destruction of cell membrane tissue, including the chloroplast membrane. In general, the results showed that in salinity stress conditions, GABA application as a compatible osmolytes might improve the tomatoes physiological performance and alleviate salinity stress.

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.

Study of Drought and Salinity Stress Effect on Some Physiological Characters of Two Canola (Brassica Napus L.) Varieties in Ahvaz

F. Yousefi; P. Hassibi; H. Roshanfekr; M. Meskarbashee

Volume 38, Issue 4 , March 2016, , Pages 25-34

https://doi.org/10.22055/ppd.2016.11830

Abstract

The aim of this study was to investigate the sole and combined effects of drought and salinity stresses on some physiological characters of two canola varieties in Ahvaz as outdoor ... Read More

The effect of 5-aminolevolinic acid on some physiological responses of coriander (Coriandrumsativum L.) under drought stress

F. Ghanbari; M. Sayyari; M. Saidi; A.A. Amirinejad

Volume 37, Issue 1 , June 2014, , Pages 93-105

Abstract

In this study, the effect of 5-Aminolevolinic acid (ALA), a key precursor in the biosynthesis of porphyrin and the new plant growth regulator, was studied on some physiological responses ... Read More

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Keywords = Relative water content

Effect of humic acid and seaweed extract application on some biochemical traits of quinoa (Chenopodium quinoaWilld.) in the condition of interruption of irrigation in two places of Kermanshah province

Abstract

The effect of salinity stress and the application of silver nanoparticles on flowering and some physico-biochemical characteristics of French parsley (Tagetes patula L.)

Abstract

Effect of different levels of IBA and cutting positions on the rooting of greenhouse rose cv. “Cherry Brandy” (Rosa hybrida .) cuttings

Abstract

Effect of Biochar and Hydrogel on Morphophysiological and Biochemical Characteristics of Common Sage (Salvia officinalis L.) under Drought Stress

Abstract

The Effect of Foliar Application of Zinc Oxide and Nanoparticles Zinc Oxide on Some Growth Characteristics and Elemental Concentration of Rosemary under NaCl Salinity

Abstract

The Effect of Dust Particles on Grain Yield and Some of the Physiological and Biochemical Characteristics of Wheat in West of Iran

Abstract

Effect of Gamma-Amino-Butyric Acid Foliar Application on Physiological Characters of Tomato (cv. Namib) under Salinity Stress

Abstract

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

Abstract

Study of Drought and Salinity Stress Effect on Some Physiological Characters of Two Canola (Brassica Napus L.) Varieties in Ahvaz

Abstract

The effect of 5-aminolevolinic acid on some physiological responses of coriander (Coriandrumsativum L.) under drought stress

Abstract