Mehrab Mehri Charvadeh; Hamid Reza Zakerin; Marefat Mostafavi Rad; Saeed Sayfzadeh; alireza valadabadi
Abstract
In order to evaluate peanut (Arachis hypogaea L.) NC2 variety growth as affected by supplementary irrigation and Salicylic acid, this experiment was performed as split plat based on randomized complete block design with three replications in experimental field of Agicutural and Natural Resources Research ...
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In order to evaluate peanut (Arachis hypogaea L.) NC2 variety growth as affected by supplementary irrigation and Salicylic acid, this experiment was performed as split plat based on randomized complete block design with three replications in experimental field of Agicutural and Natural Resources Research and Education Center of Guilan Province (Kanroud research station of Astara), Iran, during 2018 and 2019 cropping seasons. Four level of irrigation regimes: no irrigation (rainfed condition), supplementary irrigation at initial flowering stage, supplementary irrigation at pod formation stage and supplementary irrigation at initial flowering + pod formation stages and three levels of salicylic acid (SA): 100, 200 and 300 µmol/l comprised experimental treatments, as main and sub plot, respectively. Drought stress dercreased all measured characteristics in peanut and foliar application of SA at the rate of 300 µmol/l improved all studied characteristics under bath supplementary irrigation and rainfed condition. The greatest pods number per plant (51.57), grain yield (3450 kg/ha) and pod yield (4958 kg/ha) of peanut were obtained under supplementary irrigation at initial flowering + pod formation stages with SA and these agronomic traits increased 38.79, 70.8 and 57.6 percent compared to rainfed comdition, respectively. Results of this reaserch indicated, supplementary irrigation and foliar application of SA at the rate of 300 µmol/l could be recommendable to enhance plant growth and grain yield of peanut under similar climatic condition.
alireza moghaddam khamseh; Saeed Sayfzadeh; Jahanfar Daneshian; Hamidreza Zakerin; alireza valadabadi
Abstract
In order to evaluate the planting date delay on phenological traits, yield components, grain yield, and linoleic and linolenic fatty acids of new sunflower hybrids, an experiment has been conducted as split plot in a randomized, completely block design, with four replicates at the field of oilseed section ...
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In order to evaluate the planting date delay on phenological traits, yield components, grain yield, and linoleic and linolenic fatty acids of new sunflower hybrids, an experiment has been conducted as split plot in a randomized, completely block design, with four replicates at the field of oilseed section of seed and plant Improvement during 2014-2016 growing season. The treatments include seven sunflower hybrids (Barzegar, Farrokh, Haysan 36, Qasem, Shams, Azargol, and Haysan 25) on three planting dates (15 days after harvest of autumn (wheat), July 1, July 15, and July 30, respectively). The experimental results show significant effects of planting date on all traits except number of seeds per head and linolenic acid at the level of 1% and on the percentage of oil and linoleic acid at the level of 5%. The studied hybrids are significantly different in all traits except linoleic and linolenic fatty acids. The latest experimental hybrids include Barzegar and Azargol hybrids and the earliest hybrid is Farrokh. The highest grain yield is obtained from the date of the first sowing at the rate of 2840 kg / ha and in the case of delayed sowing the yield is reduced to 41%.
Seyed Basir Mousavi; Saeed Sayfzade; Hamid Jabbari; alireza valadabadi; Esmaeil Hadidi Masouleh
Abstract
The current study tries to evaluate the effect of auxin foliar application in two safflower cultivars under drought stress condition, using a factorial split plot experiment with randomized complete block design in two years (2017-2018 and 2018-2019). It has been conducted at research field of Seed and ...
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The current study tries to evaluate the effect of auxin foliar application in two safflower cultivars under drought stress condition, using a factorial split plot experiment with randomized complete block design in two years (2017-2018 and 2018-2019). It has been conducted at research field of Seed and Plant Improvement Research Institute in Karaj and evaluates irrigation at two levels including normal irrigation (control) and interruption of irrigation from the beginning of grain filling stage (drought) in the main plots and cultivars of Padideh and Goldasht and auxin foliar application in two levels of non-foliar application of distilled water (control) and foliar application of auxin (indole acetic acid) in one step (mid-flowering) at a concentration of 3000 mg.l-1 (30 ppm) in sub-plots as a factorial. In the auxin foliar application and non-foliar application (control) in both normal irrigation and drought stress treatments, the highest total number of heads per plant in Goldasht cultivar have been 26.3 and 24.3 respectively, and the highest grain number per plant observed in Goldasht cultivar have been at 708 and 592, respectively. Auxin foliar application and irrigation has had no significant effect on the grain oil percentage. Goldasht cultivar demonstrates a higher grain yield compared to Padideh cultivar due to lower head temperature, higher soluble carbohydrate concentration, number of heads, and 1000-grain weight. Generally, results show that the effect of the studied treatments is affected by the year and despite the positive effect of auxin foliar application on some yield components at both irrigation levels, foliar application of auxin at middle of flowering stage has no significant effect on grain yield.
Tahererh Rezapour Kavishahi; Saeed Saifzadeh; Marefat Mostafavi Rad; alireza valadabadi; Esmaeil Hadidi Masouleh
Abstract
In order to evaluate of grain yield of groundnut under intercropping with corn under the application of phosphorus chemical and bio-fertilizers, this experiment is performed as factorial arrangement based on randomized complete block design with three replications in Rasht, Iran in 2017 and 2018 cropping ...
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In order to evaluate of grain yield of groundnut under intercropping with corn under the application of phosphorus chemical and bio-fertilizers, this experiment is performed as factorial arrangement based on randomized complete block design with three replications in Rasht, Iran in 2017 and 2018 cropping seasons. Five level of phosphorus fertilizer (PF) as triple super phosphate (TSP) including 1. Zero (as control), 2. 50 kg/ha TSP, 3. 100 kg/ha TSP, 4. 50 kg/ha TSP + 200 g/ha Barvar2 phosphate bio-fertilizer (BPB), and 5. 100 kg/ha TSP + 200 g/ha BPB, and five intercropping pattern (IP) including 1. maize sole cropping, 2. groundnut sole cropping, 3. intercropped groundnut-maize with the ratio of 1:1, 2:1, and 1:2 rows, comprise the experimental treatments. According to the results from this experiment, the interaction effect between phosphorus fertilizer × intercropping system has been significant for all measured characteristics. Maximum grain yield of maize and groundnut are observed in the application of 100 kg/ha phosphorus fertilizer plus 200 g Barvar2 phosphat bio-fertilizer under sole crop. The combined usage of chemical and biological phosphorus fertilizer increase grain yield of maize and groundnut under sole crop. The highest land equivalent ratio (LER) equal 1.88 can be seen under control treatment and maize-groundnut intercropped system with the ratio of 1:1 rows. Intercropping system improve yield attributes of groundnut such as pod numbers per plant and grain number per pod, pod length, and diameter. Based on the results of this experiment, maize-groundnut intercropped system are advantageous for crop production per unit area. In addition, the concentration of nitrogen and phosphorus content in groundnut grain rise in response to the integrated application of chemical phosphorus and Barvar2 phosphat bio-fertilizer under maize-groundnut intercropped system. Maize-groundnut intercropped system with the ratio of 1:1 rows and the application of 100 kg/ha phosphorus fertilizer plus 200 g Barvar2 phosphat bio-fertilizer are superior to other treatments. Hence, Barvar2 phosphat bio-fertilizer superiority could be recommendable to enhance profitability and crop production at maize-groundnut intercropping system under region climatic condition.