نوع مقاله : مقاله پژوهشی

نویسندگان

1 کارشناس ارشد زراعت، وزارت جهاد کشاورزی، اراک، ایران

2 دانشیار گروه زراعت و اصلاح نباتات، واحد اراک، دانشگاه آزاد اسلامی، اراک، ایران

3 استادیار گروه زراعت و اصلاح نباتات، واحد اراک، دانشگاه آزاد اسلامی، اراک

چکیده

به‌منظور بررسی تأثیر محلول­ پاشی اسید سالیسیلیک و سلنیوم در مراحل رشد برعملکرد و اجزای عملکرد نخود در شرایط دیم، آزمایشی به‌صورت اسپلیت پلات فاکتوریل در قالب طرح بلوک­های کامل تصادفی با چهار تکرار در سال زراعی 1393-1392 اجراشد. عوامل مورد آزمایش شامل اسیدسالیسیلیک در سه سطح (بدون مصرف،محلول ­پاشی اسیدسالیسیلیک باغلظت 100 و 200 میلی­ گرم در لیتر)، سلنیوم در دو سطح (بدون مصرف و محلول‌پاشی سلنیوم به میزان 18 گرم درهکتار) در مراحل مختلف رشد رویشی، زایشی  و رویشی توأم با زایشی بودند. نتایج نشان داد با محلول ­پاشی سلنیوم و مقادیر مختلف اسیدسالیسیلیک تعداد دانه در غلاف افزایش یافت. با محلول­پاشی 100 و 200 میلی­ گرم در لیتر اسیدسالیسیلیک، تعداد دانه در بوته به ترتیب 50.6 و 87.2 درصد و با محلول­ پاشی سلنیوم تعداد دانه در بوته نسبت به شاهد 45.4 درصد افزایش نشان داد. نتایج نشان داد که بیشترین عملکرد دانه معادل 940.5 کیلوگرم در هکتار از محلول­پاشی 200 میلی ­گرم در لیتر اسیدسالیسیلیک توأم با محلول ­پاشی 18 گرم درهکتار سلنیوم حاصل شد. نتایج کلی نشان داد که در شرایط دیم با محلول­ پاشی توأم سلنیوم و اسیدسالیسیلیک در دو مرحله رویشی و زایشی می­توان به عملکرد مطلوب رسید.

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