اثر تاریخ‌های مختلف نشاکاری بر عملکرد و اجزاء عملکرد کلزا (Brassica napus L.) به عنوان کشت دوم در مزارع برنج گیلان (رشت)

نوع مقاله : علمی - پژوهشی

نویسندگان

چکیده

به منظور مطالعه تاریخ‌های مختلف نشاکاری بر عملکرد و اجزاء عملکرد کلزای پاییزه به صورت کشت دوم در اراضی شالیزاری، آزمایشی در دانشکده کشاورزی دانشگاه گیلان اجرا شد. آزمایش با چهار تیمار(تاریخ‌های نشاکاری 10 آبان، 30 آبان، 20 آذر و 10 دی) بصورت طرح بلوک‌های کامل تصادفی در سه تکرار بر روی رقم PF (ساریگل) انجام گردید. نتایج حاصل از تجزیه واریانس نشان داد که اثر تاریخ‌های کاشت بر روی عملکرد دانه و عملکرد روغن در سطح احتمال یک درصد معنی دار بود. بیشترین میزان عملکرد دانه از تاریخ کاشت 10 آبان به میزان 1/2754 کیلوگرم در هکتار و کمترین میزان عملکرد دانه از تاریخ کاشت 10 دی به میزان 2/1338 کیلوگرم در هکتار بدست آمد. بیشترین تعداد غلاف در بوته با 142 غلاف در تاریخ کاشت 10 آبان و کمترین تعداد غلاف در تاریخ کاشت 10 دی حاصل شد که درصد کاهش 52 درصد بود. بیشترین تعداد دانه در غلاف 21 عدد در تاریخ کاشت 10 آبان بدست آمد. نتایج بیانگر آن است که تاریخ کاشت بهینه بر روی عملکرد کلزا اثر قابل توجه داشت و تأخیر در کاشت، عملکرد دانه را کاهش داد. تاریخ کاشت 10 آبان اختلاف معنی داری از نظر صفات مورد بررسی از جمله عملکرد دانه و روغن با تاریخ کاشت 30 آبان نداشت. در نهایت بر اساس نتایج بدست آمده بهترین تاریخ کاشت برای رقم ساریگل در منطقه 10 آبان تا 30 آبان توصیه می‌گردد.

کلیدواژه‌ها


عنوان مقاله [English]

Effects of different dates of transplanting on rapeseed (Brassica napus L.) yield and its components as second crop after rice in Ghilan (Rasht) conditions

نویسندگان [English]

  • Mohammad javad Golmohammadi
  • Majid Nahvi
چکیده [English]

An experiment conducted to study the effects of transplanting dates on rapeseed (Brassica napus L.) yield and its components as second crop after rice in Agriculture Faculty of Ghlilan University. This research was conducted in a Randomized Complete Block Design (RCBD) with 3 replications on the PF (sarigol) cultivar. Treatments consisted various dates of transplanting in cluding 1st November, 21st November, 11st December and 31st December. The results showed that the effect of different dates of transplanting were significant on the grain yield and oil yield (P

کلیدواژه‌ها [English]

  • rapeseed
  • Transplanting date
  • Second crop
  • grain yield
  • Oil yield
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