Response of seed quantity and quality of promising winter rapeseed genotypes to terminal water limitation

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Ghassembaglou M.; KHOMARI S.; PASBAN ESLAM B.; SOFALIAN O.

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Journal: PLANT ECOPHYSIOLOGY (ARSANJAN BRANCH) Year:2019 | Volume:11 | Issue:37 Page(s): 26-37

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Title

Response of seed quantity and quality of promising winter rapeseed genotypes to terminal water limitation

Author(s)

Ghassembaglou M. | KHOMARI S. | PASBAN ESLAM B. | SOFALIAN O. | Issue Writer Certificate

Keywords

Drought stressQ1

final yieldQ1

oilseedsQ2

seed vigorQ2

seedling growthQ2

Abstract

The present research was conducted to evaluate the effect of terminal Drought stress on quantity and quality of seeds produced insix promising genotypes of winter rapeseed inResearch center for Agriculture and Natural Resources, East-Azerbaijan province, Iran during growing season 2014-15. The factorial experiment based on randomized complete block design was laid out in three replicates including two factors of genotype (six winter rapeseed genotypes called Karaj2, Karaj3, KS7, L5, L146, L210) and water limitation (three levels of water deficit stress viz. full irrigation IW1, irrigation withholding from anthesis IW2 and irrigation withholding from seed set IW3). Imposing water restriction from anthesis caused more loss of silique and seed number and final yield. The least loss of seed yield obtained from L5 and L210 genotypes under Drought stress during anthesis. The greatest and lowest falls in seed germinability were recorded in L146 under Drought stress since anthesis, and L5 and L210 under the same stress level, respectively. Under water limitation from anthesis, the least increase inseed electroconductivity was observed in genotype L5. The greatest length and vigor index of seedling wereobserved in genotypes L5 and L210 under irrigation withholding from flowering. In general, occurring terminal Drought stress especially during anthesis caused significant drop in seed production, both quantitatively and qualitatively. On the other hand, genotypes L5 and L210 had the highestyield under stress condition and wouldberecommended for introducing to breeding programs of Drought stress tolerance.

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APA: Copy

Ghassembaglou, M., KHOMARI, S., PASBAN ESLAM, B., & SOFALIAN, O.. (2019). Response of seed quantity and quality of promising winter rapeseed genotypes to terminal water limitation. PLANT ECOPHYSIOLOGY (ARSANJAN BRANCH), 11(37 ), 26-37. SID. https://sid.ir/paper/188483/en

Vancouver: Copy

Ghassembaglou M., KHOMARI S., PASBAN ESLAM B., SOFALIAN O.. Response of seed quantity and quality of promising winter rapeseed genotypes to terminal water limitation. PLANT ECOPHYSIOLOGY (ARSANJAN BRANCH)[Internet]. 2019;11(37 ):26-37. Available from: https://sid.ir/paper/188483/en

IEEE: Copy

M. Ghassembaglou, S. KHOMARI, B. PASBAN ESLAM, and O. SOFALIAN, “Response of seed quantity and quality of promising winter rapeseed genotypes to terminal water limitation,” PLANT ECOPHYSIOLOGY (ARSANJAN BRANCH), vol. 11, no. 37 , pp. 26–37, 2019, [Online]. Available: https://sid.ir/paper/188483/en

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