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Response of yield and yield components of safflower cultivars to different densities of plant
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Abstract: (2917 Views) |
In order to study the yield of different cultivars of safflower in different plant densities, the present factorial experiment in randomized complete blocks design with three replications was carried out at research farm of Khuzestan Agricultural Sciences and Natural Resources University in 2016-17 cropping year. The experiment factors included four cultivars (Goldasht, Sofeh, Isfahan and Faraman) and four levels of plant densities (20, 30, 40 and 50 plant per square meter). The results of the experiment showed that plant increasing per unit area significantly decreased number of heads per plant, number of seeds per head, grain yield and oil yield per unit area in all cultivars. Density had not significant effect on one thousand seed weight. Goldasht and Faraman cultivars had the maximum one thousand seed weight than two other cultivars. The highest grain and oil yields were obtained at an average of 2253 and 680 kilogram per hectare, respectively, at a density of 30 plants per square meter and from Sofeh cultivar. However, in this density, grain yield with density of 40 plants did not show any significant difference. Increasing density, number of heads per plant and number of seeds per head, respectively 37 and 22 percent and grain and oil yields decreased by 14 and 30 percent, respectively. Generally, the results showed that the number of heads per plant and the number of seeds per head were the most important components of grain and oil yields. According to the obtained results, Sofa and Isfahan cultivars with a density of 30 plants per square meter can be recommended for safflower cultivation in Khuzestan. |
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| Keywords: Seed protein, Number of heads per plant, Grain oil and Grain yield. |
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Full-Text [PDF 559 kb]
(2829 Downloads)
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Type of Study: Applicable |
Subject:
Crop Physiology
Received: 2018/08/29 | Accepted: 2018/08/29 | Published: 2018/08/29
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