عنوان مقاله :
اثر زمان كاشت بر عملكرد دانه و تعيين سهم نسبي اجزاي آن در ارقام آفتابگردان
عنوان به زبان ديگر :
The Effect of Sowing Dates of Sunflower Cultivars on the Seed Yield and Relative Proportions of Yield Components
پديد آورندگان :
رضادوست، ساسان نويسنده Rezadoost, S , اردكاني ، محمدرضا نويسنده Ardakani, M.R. , كاشاني ، علي 1317 نويسنده كشاورزي و دامپزشكي Kashani, A , كريمي ، مهدي نويسنده مركز تحقيقات كشاورزي و منابع طبيعي خراسان karimi, mahdi , وزان، سعيد نويسنده دانشكده كشاورزي و منابع طبيعي-دانشگاه آزاد اسلامي- واحد كرج Vazan, S
اطلاعات موجودي :
فصلنامه سال 1388 شماره 10
كليدواژه :
اجزاي عملكرد , تاريخ كاشت , رگرسيون مرحله اي , آفتابگردان
چكيده لاتين :
To increase yield of sunflower, it is essential to determine proper sowing dates for its cultivars. A factorial experiment was carried out with 2 factors in RCBD with 3 replications at the Agricultural and Natural Rresources Research Station of Khoy, Iran, during 2007-2008. Results showed that sowing date had significant effects on the plant height, stem diameter, percentage of empty achenes and harvest index. Latest planting date reduced all of the parameters under study (except empty achenes percentage). Delaying planting date reduced seed yield. The yield of Azar-gol, due to its greater head diameter, seed number per head and heavy seeds, was higher than the others. Highest seed yield was obtained from Azar-gol at second sowing date. Cultivars producing over 3000 kg seeds per hectare at latest sowing date in this regions, would be promising ones to be used in double cropping system and thus increase farmers income.
عنوان نشريه :
اكوفيزيولوژي گياهان زراعي
عنوان نشريه :
اكوفيزيولوژي گياهان زراعي
اطلاعات موجودي :
فصلنامه با شماره پیاپی 10 سال 1388
كلمات كليدي :
#تست#آزمون###امتحان
