بررسی روابط متقابل میان صفات در برخی ژنوتیپ‌های گشنیز با استفاده از روش بای‌پلات

نوع مقاله : مقاله پژوهشی

نویسندگان

1 تربیت مدرس

2 دانشگاه تربیت مدرس

چکیده

در این تحقیق برای مطالعه روابط متقابل میان صفات مختلف در گشنیز از روش بای‌پلات استفاده شد. نتاج حاصل از تلاقی‌‎های دی‌آلل 6 توده بومی گشنیز در نسل‌ F1 در سه شرایط متفاوت آبیاری به طور جداگانه در قالب طرح بلوک‌های کامل تصادفی با سه تکرار در هر آزمایش در سال زراعی 95-1394 در مزرعه دانشکده کشاورزی مورد ارزیابی قرار گرفتند. نتایج نشان داد که صفات تعداد چتر بارور، وزن هزارمیوه، تعداد میوه در گیاه و محتوای رطوبت نسبی همبستگی مثبت و معنی‌داری را با عملکرد میوه در سه شرایط آبیاری داشتند. با توجه به همبستگی منفی و معنی‌دار بین صفات فنولوژیک با عملکرد میوه در سه شرایط متفاوت آبیاری، می‌توان نتیجه گرفت که برای دستیابی برای ژنوتیپ‌هایی با عملکرد میوه بالا باید به دنبال انتخاب ژنوتیپ‌های زودرس در گشنیز بود. در این مطالعه همبستگی معنی‌داری بین صفات محتوای کلروفیل، محتوای رطوبت نسبی و پایداری غشا با عملکرد میوه تحت دو شرایط تنش ملایم و تنش شدید مشاهده شد. بنابراین می‌توان از این صفات بعنوان شاخص‌های فیزیولوژیک برای ارزیابی تحمل خشکی در گشنیز استفاده کرد. همچنین نتایج بای‌پلات نشان داد که در میان ژنوتیپ‌های مورد بررسی، ژنوتیپ G16 مطلوب‌ترین و مناسب‌ترین ژنوتیپ‌ برای عملکرد میوه و صفات مرتبط با عملکرد بود

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Interrelationship among traits in some coriander genotypes using the Biplot method

چکیده [English]

In this study, the biplot method, was used to evaluate interrelationships among different traits in coriander. F1 Progenies derived from Diallel crosses among six coriander landraces were evaluated in three different irrigation conditions through randomized complete block design with three replications at the research field of college of agricultural during growing season of 2016. Results demonstrated that there was a significant positive association between fruit yield and fertile umbel number per plant, thousand fruit weight, fruit number per plant and relative water content in all of three irrigation conditions. Due to the negative correlation between phonological traits with fruit yield in all irrigation conditions, it could be concluded that to gain genotypes with high fruit yield selection for early ripening genotypes should be done in coriander. In this study, a significant correlation was observed between fruit yield and chlorophyll content, relative water content and cell membrane stability in both mild stress and intense stress conditions. Therefore, these traits can be used as physiological indices to evaluate drought tolerance in coriander. Also, results of biplot indicated that among studied genotypes, G16 was the most appropriate genotype for fruit yield and yield related traits.

کلیدواژه‌ها [English]

  • Biplot
  • Coriander
  • Correlation
  • Early Ripening
  • yield
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