A200 super absorbent polymer effect on quantitative and qualitative characteristics of oil sunflower under water deficit conditions in field
Subject Areas :Mehri Hashemi 1 , Hamid Reza Tohidi Moghadam 2 , Farshad Qushchy 3
1 - . M.Sc. of Agronomy, Department of Agriculture, Islamic Azad University, Varamin Branch, Varamin, Iran.
2 - Assistant Professor of Agronomy, Department of Agriculture, Islamic Azad University, Varamin Branch, Varamin, Iran
3 - . Assistant Professor of Agronomy, Department of Agriculture, Islamic Azad University, Varamin Branch, Varamin, Iran
Keywords: Water deficit, Seed yield, Sunflower, oil percentage, super absorbent polymer,
Abstract :
To evaluate the effect of superabsorbent and without application of quantitative and qualitative characteristics of sunflower oil and water deficit stress conditions, the pilot in 1391, Azad University of Varamin Agricultural Research Station (Pishva) was carried out. This study was a split plot in a randomized complete block design with three replications. Where irrigation as main factors (lack of tension, the tension in the fourth and fifth pair of leaves, water stress at flowering, drought in the fourth and fifth pairs of leaves and flowering) and the concentration of the polymer, super absorbent (zero, 15 and 30 kg per ha) as sub plots were purpose. Traits such as seed yield, oil content, protein content, chlorophyll and relative water content were studied. The results showed that water deficit, particularly at the flowering stage reduced the grain yield, leaf chlorophyll content, leaf relative water content, oil content and the increased use of super absorbent of all the characters. Stress protein was also increased. The results obtained in this experiment can be concluded that the most critical stage in the flowering stage and two-stage stress (vegetative and reproductive) is very sensitive to drought stress and Application of 30 kg ha super absorbent to lessen the impact of drought was identified as the best treatments
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