اثر تراكم کاشت و محلول پاشی اوره بر عملكرد و پروتئین دانه گندم دوروم
الموضوعات :
اكبر قاسمي پور
1
(دانش آموخته کارشناسی ارشد زراعت ، واحد خوي، دانشگاه آزاد اسلامی ، خوي – ايران)
علی نصرالله زاده اصل
2
(گروه کشاورزی-دانشکده کشاورزی-دانشگاه ازاد اسلامی خوی)
الکلمات المفتاحية: پروتئين, شاخص برداشت, گندم, عملکرد,
ملخص المقالة :
این آزمایش به منظور بررسی اثرات تراكم كاشت و محلول¬پاشی اوره روي عملكرد و درصد پروتئین گندم دوروم رقم آريا، در سال زراعي90-1389 در مزرعه ای واقع در 20 کیلو متری شمال شرقی شهرستان خوی به¬صورت فاكتوريل بر پايه طرح بلوك‌هاي كامل تصادفي با دو عامل و سه تكرار اجرا شد. تراكم كاشت به عنوان عامل اول در 3 سطح (300، 400 و 500 بوته در متر مربع) و محلول پاشی نيتروژن به عنوان عامل دوم در 4 سطح (شاهد، مرحله پنجه زنی، مرحله ساقه روی و مرحله گلدهی) در نظر گرفته شدند. نتايج نشان دادند كه اثر تراكم كاشت بر ارتفاع بوته، تعداد سنبله در متر مربع، تعداد دانه در سنبله، وزن هزار دانه، طول سنبله، تعداد سنبلچه در سنبله، درصد پروتئین دانه، شاخص برداشت و عملکرد دانه معنی دار بود. بيشترين عملكرد دانه به میزان 9/6 تن در هکتار از تراكم 500 بوته در متر مربع و کمترین عملكرد دانه نیز به میزان 19/5 تن در هکتار از تراكم 300 بوته در متر مربع بدست آمد. اثر محلول پاشی اوره نیز روی صفات مذکور به غیر از وزن هزار دانه معنی دار بود. بيشترين عملكرد دانه به میزان 74/6 تن در هکتار با محلول پاشی اوره در مرحله پنجه زنی مشاهده شد که نسبت به شاهد عملکرد دانه حدود 10 درصد افزایش یافت. در این آزمایش بیشترین درصد پروتئین دانه از تراکم 300 بوته در متر مربع و محلول¬پاشی اوره در مرحله گلدهی حاصل شد.
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