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سید علی موسوی زاده

چکیده

به منظور بررسی پارامترهای ژنتیکی توده­های بومی پیاز ایران، بذر 20 توده بومی در آزمایشی در قالب طرح بلوک­های کامل تصادفی در سه تکرار در مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی استان آذربایجان شرقی طی دو سال کشت شد. تجزیه واریانس داده­ها نشان داد که میان توده­ها از نظر کلیه صفات مورد بررسی تنوع وجود دارد. عملکرد تک بوته پیاز بیشترین ضریب تغییرات فنوتیپی و ژنوتیپی را به ترتیب 81/27 و 27/24 درصد داشت. همچنین وراثت پذیری و بازده ژنتیکی این صفت بالا بود. عملکرد تک بوته پیاز همبستگی مثبت و معنی داری با طول برگ، تعداد برگ، قطرپیاز و طول پیاز در سطح فنوتیپی و ژنوتیپی داشت. تجزیه علیت نشان داد که قطر پياز بيشترين اثر مستقيم مثبت را بر عملكرد تك بوته پياز دارد. اثر غير مستقيم طول برگ از طريق قطر پياز بر عملکرد قابل توجه بود. بنابراین گزینش بوته‌های با طول برگ بیشتر که دارای قطر سوخ زیادی هستند، می­تواند در اصلاح برای افزایش عملکرد پیاز مفید باشد.

جزئیات مقاله

کلمات کلیدی

بازده ژنتیکی, تنوع, طول برگ, عملکرد, قطر سوخ

مراجع
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ارجاع به مقاله
موسوی زادهس. ع. (2019). تنوع ژنتیکی، همبستگی و تجزیه علیت در توده¬های بومی پیاز ایران. علوم باغبانی, 33(1), 29-39. https://doi.org/10.22067/jhorts4.v33i1.65006
نوع مقاله
علمی - پژوهشی