Investigation of water stress and salicylic acid effects on grain yield and fatty acids composition of some new Rapeseed genotypes in Karaj region
Subject Areas : Crop Production ResearchMohsen Yousefi 1 , amir hossein shiranirad 2
1 - Ph.D graduated, Department of Agronomy, Takestan Branch, Islamic Azad University, Takestan, Iran.
2 - Professor of Seed and Plant Improvement Institute(SPII), Agricultural Research, Education and Extension Organization(AREEO), Karaj, Iran
Keywords: Oleic acid, rapeseed, genotype, drought stress, erucic acid,
Abstract :
We investigated the physiological changes of new rapeseed genotypes influenced by salicylic acid under water stress in Karaj, Iran during 2019 and 2020. The experiment was arranged as factorial split-plot based on RCBD with three replications. Irrigation in 2 levels (normal irrigation and cut off irrigation after flowering stage) and salicylic acid in 2 levels (Control and 2 mg/l of salicylic acid foliar application) as factorial in main plots and 6 genotypes (FJL425, FJL153, FJL330, FJL424, FJL290 and Okapi) in sub plots were considered. The results of ANOVA showed that effect of irrigation regime, genotype and irrigation regimes × genotype interaction was significant on grain yield. Result of and irrigation regimes × genotype interaction revealed that FJL330 with mean of 6524 kg/ha had the highest grain yield under normal irrigation, but the same genotype had the lowest grain yield under water stress. Results also demonstrated that FJL330 and FJL290 genotypes had the lowest glucosinolate content under normal irrigation. Okapi had the lowest glucosinolate under water stress.
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