Response of yield, yield components and seed quality of safflower cultivars to water deficit tension and seed priming
Author(s):
Message:
Article Type:
Research/Original Article (دارای رتبه معتبر)
Abstract:
In order to investigate the response of yield, yield components and seed quality of safflower cultivars to water deficit tension and seed priming with salicylic acid, an experiment was conducted as split plot factorial arrangement based on a randomized complete blocks design with three replications for two years (2015-16) at Shahroud Agricultural Research Center. The main plot consisted of three levels of irrigation based on the evaporation rate of a class A evaporation pan including: no water deficit tension (60 millimeter evaporation), mild water deficit tension (120 millimeter evaporation) and severe water deficit tension (180 millimeter evaporation) as well as subplot a combination of two factors: safflower cultivars (Goldasht, Sina and Soffeh) and seed priming (seeds treated with salicylic acid and non-treated seeds). The results of combined analysis showed that water deficit tension reduced significantly the investigated traits of safflower cultivars compared to non-water deficit tension, so that the severe water deficit tension caused reduction of plant height (15 percent), grain yield (29 percent), number of heads per plant (21 percent), number of seeds per heads (22 percent), head weight (17 percent), kernel percentage (5 percent), oil seed percentage (4 percent), oil yield (36 percent) and total chlorophyll (32percent) and increasing the percentage of seed protein (4 percent)and carotenoid content (17 percent) in comparison to non-tension conditions. The results of combined analysis showed the improvement of the investigated traits in primed treatment compared to control seeds, in both water deficit tension and non-tension conditions. The interaction of year with irrigation and cultivar had a significant effect on grain yield and oil yield, so that the highest grain yield from Goldasht cultivar and the highest oil yield from Soffeh cultivar were obtained under non-tension conditions.
Language:
Persian
Published:
Crop physiology journal, Volume:10 Issue: 38, 2018
Pages:
39 to 58
magiran.com/p1896572  
دانلود و مطالعه متن این مقاله با یکی از روشهای زیر امکان پذیر است:
اشتراک شخصی
با عضویت و پرداخت آنلاین حق اشتراک یک‌ساله به مبلغ 990,000ريال می‌توانید 70 عنوان مطلب دانلود کنید!
اشتراک سازمانی
به کتابخانه دانشگاه یا محل کار خود پیشنهاد کنید تا اشتراک سازمانی این پایگاه را برای دسترسی نامحدود همه کاربران به متن مطالب تهیه نمایند!
توجه!
  • حق عضویت دریافتی صرف حمایت از نشریات عضو و نگهداری، تکمیل و توسعه مگیران می‌شود.
  • پرداخت حق اشتراک و دانلود مقالات اجازه بازنشر آن در سایر رسانه‌های چاپی و دیجیتال را به کاربر نمی‌دهد.
دسترسی سراسری کاربران دانشگاه پیام نور!
اعضای هیئت علمی و دانشجویان دانشگاه پیام نور در سراسر کشور، در صورت ثبت نام با ایمیل دانشگاهی، تا پایان فروردین ماه 1403 به مقالات سایت دسترسی خواهند داشت!
In order to view content subscription is required

Personal subscription
Subscribe magiran.com for 50 € euros via PayPal and download 70 articles during a year.
Organization subscription
Please contact us to subscribe your university or library for unlimited access!