اثر آبیاری تکمیلی و تراکم بوته بر بعضی صفات مورفولوژیکی ارقام عدس (.Lens culinaris Medik)

نوع مقاله: مقاله پژوهشی

نویسندگان

1 دانشجوی سابق کارشناسی ارشد زراعت دانشگاه ایلام

2 عضو هیئت‌علمی گروه زراعت و اصلاح نباتات دانشگاه ایلام

چکیده

به­ منظور بررسی اثر آبیاری تکمیلی و تراکم بوته بر خصوصیات رشدی، عملکرد و اجزای عملکرد در سه رقم عدس دیم، آزمایشی در سال زراعی 90-1389 در مزرعه تحقیقاتی دانشکده کشاورزی دانشگاه ایلام به‌صورت اسپلیت فاکتوریل با طرح پایه بلوک‌های کامل تصادفی در چهار تکرار اجرا گردید. شرایط دیم با آبیاری تکمیلی و دیم بدون آبیاری به‌عنوان فاکتورهای اصلی آزمایش بود. فاکتور تراکم کاشت (در دو سطح 200 و 400 بوته در مترمربع) و رقم عدس (شامل سه رقم گچساران، بیله‌سوار، کیمیا) کرت‌های فرعی آزمایش را تشکیل دادند. نتایج نشان داد که آبیاری تکمیلی باعث افزایش تعداد غلاف‌های پر و کاهش تعداد غلاف‌های پوک و در کل افزایش تعداد غلاف‌های بوته و عملکرد تک بوته گردید. با افزایش تراکم کلیه صفات (ارتفاع، تعداد گل، تعداد شاخه اصلی و فرعی، تعداد غلاف‌های پر، وزن خشک تک بوته و عملکرد تک بوته) کاهش و فقط تعداد غلاف‌های پوک افزایش نشان داد. بنا به نتایج حاصله رقم بیله‌سوار بیشترین تعداد شاخه اصلی و فرعی و همچنین بیشترین وزن خشک تک بوته را دارا بود. بیشترین تعداد گل و تعداد غلاف در بوته مربوط به رقم کیمیا بودند اثر متقابل آبیاری در تراکم بر تعداد غلاف در بوته در سطح احتمال یک درصد معنی‌دار بود. تعداد غلاف پوک و تعداد شاخه‌های فرعی نیز تحت تأثیر اثر متقابل آبیاری در رقم قرار گرفتند. اثر متقابل هر سه فاکتور بر تعداد شاخه در سطح احتمال یک درصد معنی‌دار بود.

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