نوع مقاله : مقاله علمی-پژوهشی
نویسندگان
1 دانشجوی دکتری، گروه تولیدات گیاهی، دانشکده کشاورزی و منابع طبیعی، دانشگاه گنبد کاووس، گنبد کاووس، ایران
2 دانشیار گروه تولیدات گیاهی، دانشکده کشاورزی و منابع طبیعی، دانشگاه گنبد کاووس، گنبد کاووس، ایران
3 استادیار بخش باغبانی و زراعت، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی استان گلستان، گرگان، ایران
4 استادیار، گروه تولیدات گیاهی، دانشکده کشاورزی و منابع طبیعی، دانشگاه گنبد کاووس، گنبد کاووس، ایران
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
In order to determine the most important phenological traits influencing the increase in seed yield and their relationship with yield and yield components in spring cultivars of canola, a factorial Split plot experiment was conducted based on randomized complete block design with four replications in 2013-2014 growing season in the Research Field of Gonbad Kavous University. Treatments included four canola cultivars (C1= Hyolla401, C2= Zarfam, C3= Hyolla308 and C4= RGS003), two planting dates (D1= 20 November and D2= 30 December) and three levels of nitrogen fertilizer (N1= zero, N2= 50% and N3=100%). The results showed significant differences in seed yield and other traits. The highest yield in the RGS003 (4.4ton ha-1) planted on 20 November and the lowest in Hyolla308 (1.1ton ha-1), were observed using nitrogen fertilizer and in this respect they were divided into three groups: high yielding (RGS003), medium (Hyolla401 and Zarfam) and low (Hyolla308). The maximum seed filling rate (6.1g/day) for the treatment RGS003 and 100% of the recommended nitrogen fertilizer and lowest (3.7g/day) the date of 30 November was Hyo1la 308. In addition, on the date of 30 December, Hyolla308 lowest seed weight (3.52g) with 100% nitrogen fertilizers, and RGS003 had the highest seed weight (4.04g), respectively. Seed yield except in the days to flowering (r=0.70**) and 1000 seed weight (0.19g) had a significant positive correlation with the other traits.
کلیدواژهها [English]