[Home ] [Archive]   [ فارسی ]  
:: Main :: About :: Current Issue :: Archive :: Search :: Submit :: Contact ::
:: Volume 17, Issue 2 (تابستان 2015) ::
علوم زراعی 2015, 17(2): 128-138 Back to browse issues page
Effect of delayed planting and foliar application of nitrogen on canola seed and oil yield in Ahvaz conditions
Abstract:   (2442 Views)
To investigate the effect of delayed plantine date and timing of foliar application of nitrogen on seed yield, yield components and quality of canola, a field experiment was conducted as split plot using randomized complete blocks design with three replications at research farm of Agriculture and Natural Resource University of Ramin, Iran, in autumn of 2013-2014 growing season. The experimental treatment consisted of three sowing date 27 November, 17 December, 30 December which were assigned to main plots and the timing of of nitrogen foliar application in four levels control, rosette, budding, flowering, were randomized in sub-plots. Results showed that the highest seed yield (3406.6 kg.ha-1) and oil yield (1481 kg.ha-1) were obtained from the first sowing date. With delay in sowing date, seed yield, pod per unit area, 1000 seed weight, oil yield, growing degree days (GDD), day to flowering and duration of flowering to maturity decreased significantly. Moreover, with delaying sowing date seed oil content decreased, but the canopy temperature increased. The effect of nitrogen foliar application on seed yield, yield components and oil yield of canola was significant. The highest seed yield, pod per unit area, 1000 seed weight and dry mater were obtained from nitrogen foliar application in budding stage, however, with nitrogen foliar application oil content significantly decreased. In conclusion, the first sowing date and nitrogen foliar application in budding stage produced the maximum seed and oil yield, therefore it was considered the most suitable treatment. In general, results showed that nitrogen foliar application in budding stage could compensate for the reduction in seed yield and oil content, due to delay in planting date and heat stress, by 31% and 34%, respectively.
Keywords: Canola, Canopy temperature, Delay in planting and Nitrogen use effeciency
Full-Text [PDF 221 kb]   (1018 Downloads)    
Type of Study: Scientific & Research | Subject: Special
Received: 2015/10/11 | Accepted: 2015/10/11 | Published: 2015/10/11
Add your comments about this article
Your username or Email:

CAPTCHA


XML   Persian Abstract   Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Effect of delayed planting and foliar application of nitrogen on canola seed and oil yield in Ahvaz conditions. علوم زراعی. 2015; 17 (2) :128-138
URL: http://agrobreedjournal.ir/article-1-522-en.html


Volume 17, Issue 2 (تابستان 2015) Back to browse issues page
مجله علوم زراعی ایران Iranian Journal of Crop Sciences
Persian site map - English site map - Created in 0.05 seconds with 32 queries by YEKTAWEB 3991