غربال ژنوتیپ‏های چغندرقند نسبت به نماتد سیستی

نوع مقاله: کامل علمی - پژوهشی

نویسندگان

1 کارشناس آزمایشگاه/ دانشگاه خوراسگان

2 دانشیار مرکز تحقیقات کشاورزی و منابع طبیعی اصفهان

3 دانشیار گروه گیاهپزشکی دانشکده کشاورزی دانشگاه شهرکرد

چکیده

نماتد سیستی (Heterodera schachtii Schmidt) یکی از عوامل محدود کننده رشد چغندرقند (Betavulgaris L.) می‏باشد. با توجه به اهمیت و گستردگی این نماتد در جهان و به منظور جلوگیری از کاهش قابل توجه محصول، مناسب‏ترین روش مدیریت آن، استفاده از ارقام مقاوم می‏باشد. در این تحقیق حساسیت 70 ژنوتیپ چغندرقنددر برابر نماتد سیستی به صورت طرح کامل تصادفی در سه تکرار در سطح گلخانه و طرح بلوک‏های کامل تصادفی در سه تکرار در سطح مزرعه در اصفهان بررسی شدند. تجزیه آماری داده‏های حاصل از آزمایشات گلخانه‏ای و مزرعه‏ای با نرم افزار SASو گروه‏بندی خوشه‏ای آن‏ها توسط نرم­افزار SPSSنشان داد که ژنوتیپ‏های 53 (SB-2)، 69 (NE 0911)، 16 (SB32-HSF-5) کمترین تعداد سیست و ژنوتیپ‏های 16 (SB32-HSF-5)و 5 (SB31-HSF-2)کمترین میزان تخم و لارو و فاکتور تولیدمثل را دارا بودند. این دو لاین 16 (SB32-HSF-5) و5 (SB31-HSF-2)، به عنوان مقاوم‏ترین ژنوتیپ‏ها شناخته شده و در یک خوشه قرار گرفتند. به این ترتیب، می‏توان از ژنوتیپ‏های فوق الذکر در مقاومت به نماتدسیستی چغندرقندو نیز برنامههای اصلاحی استفاده نمود.

کلیدواژه‌ها


عنوان مقاله [English]

Screening of sugar beet genotypes to beet cyst nematode

نویسندگان [English]

  • leila motieeian 1
  • Mehdi Nasr Esfahani 2
  • Majid Olia 3
1 Laboratory /Khorasgan University
2 Associate Professor, Department of Plant Protection, Agriculture and Natural Resources Research Center, Isfahan, Iran
3 Associate Professor, Department of Plant Protection, Agricultural College, Shahrkord University, Iran
چکیده [English]

Sugar beet cyst nematode (Heterodera schachtii Schmidt), is one of the limiting factors of sugar beet growth. Considering the importance and magnitude of this nematode distribution in Iran and also to decrease its destructive damage, use of resistant varieties is recommended. Prerequisite for resistant variety development is resistant genotype availability. In this study, resistance of 70 sugar beet genotypes to sugar beet cyst nematode was evaluated in a completely randomized design with three replications in the greenhouse and in a randomized complete block design with three replications in the field condition in Isfahan, Iran. Data analysis was performed using SAS software and cluster analysis was done by SPSS software. Results showed that genotypes 53 (SB-2), 69 (NE 0911), and 16 (SB32-HSF-5) had the minimum number of cysts, and genotypes16 (SB32-HSF-5) and 5 (SB31-HSF-2) had the lowest rates of eggs, larva and reproductive factor, respectively. The genotypes 16 (SB32-HSF-5) and 5 (SB31-HSF-2) were identified as the most resistant genotypes and were placed in the same cluster. Therefore, these genotypes can be used in breeding programs for resistant variety development.

کلیدواژه‌ها [English]

  • Cyst nematode
  • Heterodera schachtii
  • resistance
  • sugar beet
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