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Effect of water stress on grain yield, yield components and quality of winter rapeseed (Brasica napus L.) cv. Licord
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Abstract: (3979 Views) |
| To study the effect of water stress at different growth stages on seed yield and yield components and quality of winter rapeseed (Barassica napus L.) cv. Licord a field experiment was conducted at the experimental research field of Faculty of Agriculture, Shiraz University, Iran, in 2004- 2005 and 2005- 2006 growing seasons. Experiment was performed using compelte randomized block design with five treatments and four replications. Treatments included full irrigation in all growth stages, water stress in vegetative stage in early spring, water stress in flowering and silique formation stages, water stress in grain filling stage and rainfed treatment with supplemental irrigation at planting time. Results showed that the rainfed treatment had the least and the full irrigation treatment had the maximum grain (980 and 3560 kg.ha-1, respectively) and oil yield (250 and 1280 kg.ha-1, respectively), respectively. Water stress had had revrese relationship with grain protein content. Full irrigation and water stress in flowering and silique formation stages had maximum(0.63 kg.m-3) and rainfed treatment had minimum (0.36 kg.m-3) water use productivity, respectively. Considering water use for grain and oil yields, it is concluded that vegetative stage in early spring is more tolerant to waters stress than grain filling stage in winter rapeseed under the conditions of this experiment. |
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| Keywords: Deficit irrigation, Grain yield, Oil content, Protein content, Rainfed and Rapeseed |
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Full-Text [PDF 321 kb]
(2316 Downloads)
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Type of Study: Scientific & Research |
Subject:
Special
Received: 2015/02/22 | Accepted: 2015/02/22 | Published: 2015/02/22
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