Plant Productions

The role of foliar application of plant-derived smoke on yield and growth characteristics of wheat (TriticumaestivumL.)

Saeid Jalali Honarmand; Amene Akbarzade sharafi; Hamidreza Chaghazardi; Mohammad Eghbal Ghobadi

Articles in Press, Accepted Manuscript, Available Online from 03 February 2024

https://doi.org/10.22055/ppd.2024.44408.2114

Abstract

Introduction Food security concerns have necessitated the increase in agricultural production due to the ever-increasing world population, projected to exceed 9.6 billion people by ... Read More Introduction Food security concerns have necessitated the increase in agricultural production due to the ever-increasing world population, projected to exceed 9.6 billion people by 2050. It has been reported that various physicochemical contents of plants are increased by the solution of plant smoke. The biologically active compounds of smoke are soluble in water and in very low concentrations, they cause significant physiological responses in plants. These compounds can be used in the form of aqueous extract under the name of water smoke, by designing a device based on previous research in this field. Through various studies, it has been reported that the smoke enhancing activity is due to the presence of karrikin compounds ( KARs ). the burning of plant residues (smoke-water) can mimic the action of phytohormones in regulating plant growth and differentiation and act as a quasi-phytohormone. Materials and methods This research was carried out in a factorial experiment in base of randomized complete blocks design ( RCBD ) in three replications in the research farm of the Campus of Agriculture and Natural Resources, Razi University, in the crop years 2019-2020 and 2020-2021. The factors included irrigated wheat cultivars ( Mihan and Sirvan ) and foliar application with a concentration of one liter per hectare in the phenological growth stages of wheat at eleven levels including no application ( control ), application in the stages of double ridge, second node detectable, ear emergence, anthesis, double ridge + second node detectable, double ridge + ear emergence, double ridge + anthesis, second node detectable + ear emergence, second node detectable + anthesis, ear emergence + anthesis. The studied traits in this research include seed yield, biological yield, harvest index, seed per spike, 1000-seed weight, seed filling duration and seed filling speed. Result and discussion The results of this study showed that the maximum seed filling speed in foliar application at the stage of second node detectable was average ( 1.38 mg. day-1 ) in both Mihan and Sirvan cultivars, and the maximum weight of 1000-seed weight ( 48.93 grams ) in Mihan cultivar in foliar application at the stage of ear emergence was obtained, also foliar application in the stage of double ridge + second node detectable had the highest harvest index with average ( 45.79 percent ) and seed filling duration with average ( 48.51 days ) All of which were in the Mihan cultivar. Foliar application in the stages of double ridge + second node detectable and anthesis caused the highest seed yield with average ( 6.02 t. ha-1 ). The maximum number of seeds per spike with average (55.83) and biological yield with average ( 15.61 t. ha-1 ) was related to foliar application at the stage of double ridge + ear emergence in Mihan cultivar. Conclusion Smoke water has the necessary potential to increase the quantity of wheat. If the results of this research are confirmed in other researches, it can be recommended to use water smoke as a practical and low-cost technology, especially for poor farmers in developing countries. Key word Growth Regulator, Harvest Index, Karrikin , Seed Filling Speed.

View Article

Effect of Gamma Amino Butyric Acid on Morpho-Physiological Traits and Seed Yield of Quinoa under Salinity Stress

Abdol-Amir Hatami; Roghaye Aminian; Sudabeh Mafakheri; Morteza Soleimani Aghdam

Volume 44, Issue 4 , December 2021, , Pages 559-572

https://doi.org/10.22055/ppd.2021.35988.1960

Abstract

AbstractIntroductionSalinity and accumulation of salts in the soil are among the most important non-biological stresses that limit agricultural production in arid and semi-arid ... Read More AbstractIntroductionSalinity and accumulation of salts in the soil are among the most important non-biological stresses that limit agricultural production in arid and semi-arid regions of Iran. To minimize the effects of stress foliar application of gamma-aminobutyric acid (GABA) can make a differencw. Therefore, due to the adverse effects of salinity stress on the growth and yield of many plants, including quinoa, it is necessary to use methods to increase plant resistance to improve growth, production, and crop yield. The present study was conducted to study the effect of gamma-aminobutyric acid on reducing the effects of salinity stress and improving the quantitative and qualitative characteristics of quinoa. Materials and MethodsTwo-factor factorial experiment in a randomized complete block design with three replications, was conducted during 2018-2019 in the research greenhouse of Imam Khomeini International University in Qazvin, Iran. The experimental factors included salinity of irrigation water at three levels (0, 8 and 16 dS / m sodium chloride) and GABA at five levels (0, 2.5, 5, 7.5 and 10 mM). Quinoa seeds were obtained from the Seed and Plant Breeding Research Institute. After seedling establishment in the four-leaf stage, salinity was applied by adding sodium chloride to irrigation water. Some morphological and physiological traits such as main stem diameter, number of spikes per plant, grain yield, 1000-seed weight, harvest index; SPAD, leaf relative water content, leaf water loss and membrane stability percentage were also measured. Results and DiscussionThe results showed that salinity had a reducing and significant effect on plant growth and development indices. Application of gamma-amino butyric acid improved the traits of SPAD, plant height, stem length, number of spikes, and harvest index. Therefore, foliar application of GABA under salinity stress conditions is recommended as a compatible osmolyte that reduces salinity damage in quinoa. The salinity × GABA interaction was significant for all traits except relative water loss, SPAD index, plant height and number of spikes per plant. At salinity of 16 dS / m, the best GABA treatment increased the leaf relative water content (10%), membrane stability index (29%), stem diameter (11%), 1000-seed weight (37%), grain yield (36 %), plant dry weight (70%), potassium content (58%), potassium to sodium ratio (168%) and decrease in sodium content (117%) compared to non-use of GABA conditions. The maximum leaf SPAD index (39.88), the highest plant height (55.15 cm), and the highest number of spikes per plant (15.03) were obtained in plants treated with 10 mM GABA. ConclusionQuinoa is a plant with very high nutritional value that can be an important part of our diet in a near future. The results of this study revealed that although this plant has a high resistance to salinity, increasing the salinity of irrigation water may cause a significant reduction in its growth and development. On the other hand, the use of GABA as a natural factor that improves plant resistance to biotic and abiotic stresses, proved influential to greatly compensate for the damage caused by saline water and significantly increased the resistance of quinoa to salinity.

Influence of Sowing Date and Terminal Heat Stress on Phonological Features and Yield Components of Bread Wheat Genotypes

Fatemeh Mousavi; Mohammad Reza Siahpoosh; Karim Sorkheh

Volume 44, Issue 2 , August 2021, , Pages 157-170

https://doi.org/10.22055/ppd.2019.28957.1744

Abstract

AbstractIntroductionDelay in sowing date results in yield production change in wheat. Belated sowing time of wheat cultivars always encounters terminal heat stress, particularly after ... Read More AbstractIntroductionDelay in sowing date results in yield production change in wheat. Belated sowing time of wheat cultivars always encounters terminal heat stress, particularly after flowering, in south of Iran. Heat stress is one of the main obstacles influencing crop production worldwide. Currently, producing heat tolerant genotypes is so essential in plant breeding programs. In spite of previous research on physiological aspects of heat stress tolerance, a consensus among scientists on the most important traits controling heat stress tolerance in plants is not available. Phenological traits of wheat genotypes are the major traits influencing heat tolerance and very important in breeding programs. Materials and MethodsIn order to investigate the effects of sowing date and terminal heat stress on phenological traits, yield and yield components of bread wheat, a field experiment was conducted in a randomized complete block design with three replications on 30 genotypes including: Pars, Bahar, Sistan, Dez, Shiraz, Bam, Arvand, Chamran 2, Kavir, Neyshabour, Roshan, Pishtaz, Hamoon, Kaz, Arta, Sepahan, Mehregan, Shuosh, Verinak, Arg, Ghods, Hirmand, Chamran, Alvand, Falat, Aflack, Marvdasht, Mantana, Babax and Weebile with different length of phonological stages in experimental fields of Shahid Chamran University of Ahvaz during 2014-2015. The cultivars were planted in normal and late sowing dates (terminal heat stress) and the data were combined and run in a combined analysis of variance. Results and DiscussionIn this research, sowing date and consequent heat stress significantly reduced (P≤0.01) the phenological traits. The average of the number of days from sowing to tillage was reduced by 23% under terminal heat stress in comparison with the normal condition. The yield and yield components were also strongly affected by seasonal heat stress and the number of spikelets per spike (16%), number of kernels per spike (18%), thousands kernel weight (11%), biological yield (40%), harvest index (14%) and grain yield (46%) reduced under heat stress. Based on the results, the correlation between phenological traits and yield components was positive in normal conditions and in most cases it was negative under heat stress conditions. The reults of canonical correlation showed that phenological traits in the first canonical correlation could interprete 38% of the variance of yield components in the normal and 47% in the heat stress conditions, which shows the more effective role of phenological traits on yield components under heat stress than normal conditions. Cluster analysis also displayed the important role of phonological features in comparison with other traits in the classification of commercial wheat cultivars of Iran. Generally, under hot climatical conditions such as Khuzestan the length of different phonological stages over the course of plant life significantly influence the grain performance. If the phenology of genotypes is locally engineered based on the optimum length, the promising heat tolerant cultivars will be achieved with ability to produce and maintaine the yield production. ConclusionGenerally, under hot climatical conditions such as Khuzestan the length of different phonological stages over the course of plant life significantly influence the grain performance. If the phenology of genotypes is locally engineered based on the optimum length, the promising heat tolerant cultivars will be achieved with the potential to produce and maintaine the yield production.

The Effect of Anti-Transpiration and Plant Protective Materials on Vegetative and Physiological Traits of (Hyssopus officinalis L.) under Drought Stress

Sarah Khajeh Hosseini; Farzad Fanoodi; S.A Tabatabaee; Rostam Yazdani Biouki; Jafar Masoud Sinaki

Volume 44, Issue 1 , June 2021, , Pages 77-88

https://doi.org/10.22055/ppd.2019.28805.1734

Abstract

AbstractBackground and ObjectivesHyssop (Hyssopus officinalis L.) is a perennial and belongs to the Lamiaceae family. Drought is the most critical environmental stress that adversely ... Read More AbstractBackground and ObjectivesHyssop (Hyssopus officinalis L.) is a perennial and belongs to the Lamiaceae family. Drought is the most critical environmental stress that adversely affects crop plant performance. The use of anti-transpiration and plant protective materials is one way that has recently been raised to improve plant resistance under stress conditions. The purpose of this experiment was to investigate the effect of anti-transpiration and plant protective materials on vegetative and physiological traits of Hyssop under drought stress and foliar application time. Materials and MethodsThis research was conducted as a split-plot factorial experiment based on a completely randomized design with three replications in 2016-2017. The experimental treatments included irrigation in three levels: 25% water available from the soil (control), 50% water available from the soil (mild stress), and 75% water available from the soil (severe stress) Were the main plots. Foliar application in four levels: water (control), kaolin (2.5%), chitosan (0.4 g/ l) and glycine amino acid (2.5 per thousand), and foliar application time: (vegetative and flowering, flowering) were the subplots. In the present study, dry leaf weight, flower dry weight, essential oil yield, shoot dry weight, economic yield, harvest index, proline, and soluble sugar were measured. ResultsThe results showed that at control stress level, the foliar application of water had the highest leaf dry weight (81.3 g/m2), shoot dry weight yield (140.5 g/m2), essential oil yield (9.40 g/m2), economic yield (81.3 g/ m²), and proline content (8.558 (µM/g FW). Moreover, during flowering and vegetative + flowering, kaolin's foliar application during vegetative+flowering had the highest dry flower weight (53 g/m2). At mild stress level, the foliar application of water during vegetative+flowering included the highest amount of soluble sugar (0.396 mg/g FW), and glycine foliar application at the flowering time had the highest harvest index (79%). Also, kaolin spraying during vegetative+flowering had the highest economic yield (73 g/m), and chitosan foliar application during vegetative+flowering had the highest shoot dry weight (111 g/m²) and essential oil yield (7.55 g/m2). DiscussionDue to the beneficial effects of antiperspirants and plant protection, they can be used as suitable solutions to increase plant production and reduce drought stress in arid and semi-arid regions.

The Effect of Nitrogen on Yield and Yield Components of Different Sesame (Sesamum Indicum L.) Varieties under Weed Competition

Soraya Haghanian; Alireza Yadavi; Hamidreza Balouchi; Ali Moradi; Yaeghoub Behzadi

Volume 42, Issue 2 , June 2019, , Pages 195-210

https://doi.org/10.22055/ppd.2019.22805.1497

Abstract

Abstract Background and Objectives Competition, as one of the key issues and complex phenomena, is in the ecophysiological discussions of plant communities and is influenced ... Read More Abstract Background and Objectives Competition, as one of the key issues and complex phenomena, is in the ecophysiological discussions of plant communities and is influenced by many factors that can be attributed to weed interference with the crop and the use of fertilizer inputs. Considering that nowadays the use of plant oils and sesame cultivation has increased, the aim of this study was to investigate the response of sesame cultivars to nitrogen increase in competition with weeds to identify the limitations and benefits of nitrogen use. Materials and Methods The experiment was conducted as a split factorial based on randomized complete block design with three replications at Omidieh (Khuzestan Province) during the summer of 2013. The main plot consisted of nitrogen fertilizer application levels (control [non-use] and use of 50 and 100 kg/ha nitrogen from urea form) and subplots were in a factorial combination of sesame varieties (Behbahan landrace, Yellow-white, tn-238, and tn-240) and weed competition in two levels (weed free and weed infest). In this experiment, morphological traits, harvest index, yield, and yield components of sesame were measured. Results The results showed that the effect of different amounts of nitrogen, weed competition, and sesame varieties on yield and yield components were significant. The interaction effects of nitrogen and sesame varieties on the leaf area index, number of capsules per plant, 1000-grain weight, and harvest index of sesame were significant. Increasing nitrogen improved LAI but weed interference reduced the number of capsules per plant by 23 percent. The effect of weed on 1000 grain weight showed that weed competition decreased this trait by 7.5 percent. The effects of nitrogen, cultivar, and weed competition on grain and biological yield were significant, so that the highest grain yield (158.06 gm-2) belonged to the 100 kg N treatment and between different varieties of sesame obtained from the Behbahan local variety(151.38 gm-2). Compared to the control (no nitrogen) the highest level of nitrogen treatment increased 31 percent in biological yield. In weed-free conditions, the Biological yield was more than the weed-infested treatment, so that the weed control increased the biological yield by 24 percent. Discussion Conclusion: The results of this study showed that the cultivation of Behbahan local variety with the application of 100 kg N, under Omidieh regional conditions, has been Improved many traits of sesame, including plant height, leaf area index, number of capsules per plant, and 1000 grain weight that this improvement was due to the get maximum yield.

Effect of sowing and irrigation cutoff date on seed yield and irrigation water use efficiency of spring berseem clover in Khouzestan

Ahmad Ali Shoushi Dezfuli; Mohammad khorramian; Ali Assareh

Volume 41, Issue 4 , March 2019, , Pages 69-82

https://doi.org/10.22055/ppd.2018.23152.1510

Abstract

Abstract Background and Objectives Khouzestan province with about 1000 hectares of seed clover is the most important region for seed production of berseem clover (Trifolium alexandrinum) ... Read More Abstract Background and Objectives Khouzestan province with about 1000 hectares of seed clover is the most important region for seed production of berseem clover (Trifolium alexandrinum) in Iran. Extending the cultivation area of berseem clover (BC) is important due to the favorable effects of BC on soil fertility and the necessity of this region to a desirable crop rotation. The harvest date of summer crops such as corn leads to delay in optimum sowing date of BC. Several investigators in other areas have demonstrated that early sowing dates improved yield of BC. On the other hand, the most important factor in crop yields is water irrigation; it plays an important role in sustainable agriculture. Based on the existing literature, early sowing date reduces the number of irrigation events and increases water irrigation use efficiency (IWUE). Therefore, this experiment was conducted to evaluate the response of spring BC sowing date and last irrigation cutoff time on seed yield and IWUE. Materials and Methods This study was carried out in Safiabad Agricultural Research Center in two years (2014-15). Soil texture of the experimental field was silty clay loam, well drained without salinity (ECe=1.2ds m-1), with 0.75 percent organic carbon. The statistical design of the experiment was split plot based on a randomized complete block design with four replications. The main plots were allocated to sowing date including 10th Feb, 20th Feb, 2st Mar and 12th Mar, and the sub plots were assigned to irrigation cutoff dates including 5th Jun, 15th Jun and 25th Jun. Daily evaporation from class A evaporation pan of the Safiabad weather station (nearby the experimental field) was measured to calculate water irrigation depth, and BC evapotranspiration was calculated by applying a pan coefficient of 0.8. Irrigation interval was managed based on 80 mm accumulated evaporation from the pan evaporation. The measured traits included seed yield, IWUE, number of seeds per inflorescence (NSI), number of inflorescences per square meter (NI), days to flowering, straw production, total dry matter (TDM), harvest index (HI) and weighed a thousand seeds. Results There was a significant difference between the irrigation cutoff date for all traits except the number of days to flowering and HI. The results of the mean comparison showed that the, sowing date of 20th Feb and irrigation cutoff in 15th Jun, with seed yield (631 kg.ha-1) and IWUE (0.72 kg.m-3) was better than the other treatments. In this treatment, the plant growth period in the first sowing date (88.6 days), and the NI (623 numbers), and the NSI (37.1 numbers) was higher than the other treatments. The correlation between seed yield and other traits was positive and the stepwise regression analysis showed a positive and high effect of NI on seed yield in BC. Discussion The results of this trial confirm previous findings that BC early sowing dates, will had higher seed yield. Also, the results showed that delaying in irrigation cutoff is effective in decreasing IWUE, so that irrigation until 25 th June in comparison with 15 th June, In spite of significant increasing in yield, decreased IWUE significantly.

Genetic Analysis of Grain Yield, Grain Yield Components and some Phonological Traits of Triticale Genotypes.

a Naderi

Volume 39, Issue 3 , December 2016, , Pages 1-14

https://doi.org/10.22055/ppd.2016.12060

Abstract

Background and Objectives Triticale is a crop species resulting from a plant breeder's cross between wheat (Triticum) and rye (Secale). Plant breeders originally wanted to include the ... Read More Background and Objectives Triticale is a crop species resulting from a plant breeder's cross between wheat (Triticum) and rye (Secale). Plant breeders originally wanted to include the combination of grain quality, productivity, and disease resistance of wheat with the vigor and hardness of rye. Triticale is mainly introduced as a crop which is more adapted under low-potential condition than the wheat and other small cereals. Triticale could be used as a feed grain. As a feed grain, triticale is already well established and of high economic importance. The aim of a triticale breeding program is mainly focused on the improvement of quantitative traits, such as grain yield, nutritional quality and plant height, as well as traits which are more difficult to improve, such as earlier maturity and improved test weight. In order to study the relationship between grain yield and its related traits and to select high yielding lines of triticale, this research was carried-out in a low-potential condition. Material and Methods This research was conducted in Ahvaz Agricultural Research station during 2013-2014 cropping season, with 36 lines, using α-lattice design with two replications. Fertilizers were used based on soil test results. Each line was planted in six 6-meter rows with 0.2 meter spacing in Nov.8 and irrigation was done immediately. Days from germination to heading, physiological maturity and ripening stages, and grain yield and its components were determined. Genetic variation coefficient was calculated based on GC={[(Vg-Ve)/r]/M}×100, equation in which GC, Vg, Ve, r and M are genetic variation coefficient, phenotype variance, variance of error, replication and mean trait, respectively. Data were analyzed using MSTATC software. Results Results indicated that genotypes were significantly different for all traits. Ranges of days from germination to ear emergence and physiological maturity were 89-103 and 129-141 respectively. T he highest grain yield (4790 Kg.ha-1) and grain crop growth rate (14.1 g.m-2.day-1) was belonged to line No.29. The highest genetic variation coefficients were obtained from days from germination to ear emergence (43.6%) and biological yield (36.4%). Range of mean grain yield was 1898-4652 Kg/ha and lines No,:5, 8, 15, 17, 20, 22, 23, 26 and 29 with grain yields 4494, 3748, 3820, 3777, 3757, 3717, 4007, 3780 and 4651 Kg.ha-1 respectively, were selected for advanced trails. Discussions Regarding high similarity among grain yields with both grain growth rate (95%) and biological yield (86%) in cluster analysis and high genetic variation of the mentioned traits, the lines with both high biological yielding and grain growth rate were evaluated as the optimum genetic sources for breeding programs of triticale. Lines with both traits have capability to accumulate high amount of dry matter and to allocate a large proportion of this dry matter to grains.

Effects of deficit irrigation and application of biofertilizers on the growing characteristics and water use efficiency on borage (Borago officinalis L.)

A. Karami A. Karami; A. Sepehri

Volume 38, Issue 1 , May 2015, , Pages 91-102

https://doi.org/10.22055/ppd.2015.11134

Abstract

In order to study the effects of deficit irrigation and application of biofertilizers on the growing characteristics and water use efficiency (WUE) of Borago officinalis L. a field ... Read More

Effects of sowing patterns and density on grain yield and yield components of alfalfa (Medicago sativa L.) cv. Mesa-Sirsa in South Khozestan conditions

G.R. Abadouz; A. Rahnama; G. Fathi

Volume 36, Issue 3 , December 2013, , Pages 53-64

Abstract

In order to investigate the effect of row spacing and seeding rate on Mesa-Sirsa alfalfa cultivar, this experiment was carried out in the research farm of Khuzestan Agricultural Research ... Read More

Articles in Press

Current Issue

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)

Keywords = Harvest index

The role of foliar application of plant-derived smoke on yield and growth characteristics of wheat (TriticumaestivumL.)

Abstract

Effect of Gamma Amino Butyric Acid on Morpho-Physiological Traits and Seed Yield of Quinoa under Salinity Stress

Abstract

Influence of Sowing Date and Terminal Heat Stress on Phonological Features and Yield Components of Bread Wheat Genotypes

Abstract

The Effect of Anti-Transpiration and Plant Protective Materials on Vegetative and Physiological Traits of (Hyssopus officinalis L.) under Drought Stress

Abstract

The Effect of Nitrogen on Yield and Yield Components of Different Sesame (Sesamum Indicum L.) Varieties under Weed Competition

Abstract

Effect of sowing and irrigation cutoff date on seed yield and irrigation water use efficiency of spring berseem clover in Khouzestan

Abstract

Genetic Analysis of Grain Yield, Grain Yield Components and some Phonological Traits of Triticale Genotypes.

Abstract

Effects of deficit irrigation and application of biofertilizers on the growing characteristics and water use efficiency on borage (Borago officinalis L.)

Abstract

Effects of sowing patterns and density on grain yield and yield components of alfalfa (Medicago sativa L.) cv. Mesa-Sirsa in South Khozestan conditions

Abstract