دوره 13، شماره 38 - ( تابستان 1400 )
جلد 13 شماره 38 صفحات 9-1 |
برگشت به فهرست نسخه ها
دانشگاه علوم کشاورزی و منابع طبیعی ساری-
چکیده: (2112 مشاهده)
تنش شوری از مهم‌ترین عوامل محدودکننده رشد و تولید گیاهان زراعی است. به منظور ارزیابی تحمل به تنش شوری ژنوتیپهای کلزا و شناسایی ژنوتیپهای متحمل از طریق شاخص‌های تحمل تنش شوری، آزمایشی به‌صورت فاکتوریل بر پایه طرح بلوکهای کامل تصادفی با سه تکرار در دانشگاه علوم کشاورزی و منابع طبیعی ساری انجام شد. فاکتورها شامل: 30 ژنوتیپ کلزا و شوری در دو سطح صفر و12 دسی زیمنس بر متر از منبع کلرور سدیم (NaCl) بود. از بین 30 ژنوتیپ مورد بررسی، ژنوتیپهای Wesroona، 401 Hyola، Ziho ، Jef Neuf، Kuntoو Alk با توجه به دارا بودن مقادیر بالاتری از شاخص‌های تحمل و عملکرد بالاتر در شرایط نرمال و تنش به عنوان ژنوتیپهای متحمل و ژنوتیپهایAskaria ،Starlight،Lisandra ، Burosemjanaja، Sarigol ،Niro1 وNiro2 بهعنوان ژنوتیپهای حساس در نظر گرفته شدند. علاوه بر این، تجزیه بای‌پلات و تجزیه کلاستر نیز تاییدکننده نتایج فوق بود و در تجزیه کلاستر ژنوتیپ‌ها به سه گروه تقسیم شدند. نتایج این پژوهش نشان می دهد که شاخص تحمل به تنش (STI)، میانگین حسابی بهره وری (MP) و میانگین هندسی بهره وری (GMP)، شاخص عملکرد (YI) و شاخص میانگین هارمونیک (HM) در انتخاب ژنوتیپهای متحمل موثر می باشند و شاخص تحمل به تنش (STI) از سایر شاخصها موثرتر است.
نوع مطالعه: پژوهشي |
موضوع مقاله:
اصلاح نباتات، بیومتری
دریافت: 1397/7/2 | ویرایش نهایی: 1400/5/5 | پذیرش: 1398/2/21 | انتشار: 1400/5/7
دریافت: 1397/7/2 | ویرایش نهایی: 1400/5/5 | پذیرش: 1398/2/21 | انتشار: 1400/5/7
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