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تأثیر تنش خشکی و کودهای شیمیایی بر عملکرد و خصوصیات کیفی دانه گندم | ||
تولید و ژنتیک گیاهی | ||
دوره 3، شماره 1 - شماره پیاپی 3، فروردین 1401، صفحه 43-56 اصل مقاله (935.31 K) | ||
نوع مقاله: مقاله پژوهشی | ||
شناسه دیجیتال (DOI): 10.34785/J020.2022.800 | ||
نویسندگان | ||
محمدصفر نوری* 1؛ نثار احمد طالیمن2 | ||
1دانشیار، گروه زراعت، دانشکده کشاورزی، دانشگاه تخار، افغانستان | ||
2دانشجوی دکتری، گروه پویایی محیط و مدیریت، دانشگاه هیروشیما، ژاپن | ||
چکیده | ||
آزمایش حاضر با هدف بررسی اثر کاربرد ترکیبی کودهای نیتروژن، فسفر و پتاسیم بر رشد، عملکرد و خصوصیات کیفی دانه گندم تحت شرایط تنش خشکی انجام گردید. در این آزمایش از ارقام مینامینوکوری و للمی-2 استفاده شد. تیمارها شامل کاربرد کودهای نیتروژن، فسفر و پتاسیم و اعمال تنش خشکی بود. ارقام مذکور بعد از مرحلۀ گلدهی در معرض سه سطح تنش خشکی (آبیاری نرمال، تنش خفیف و شدید خشکی) قرار گرفتند. نتایج نشان داد تنش خشکی سبب کاهش رشد، عملکرد، مقدار نشاسته و پنتوزان قابل حل در آب دانه گردید، درحالیکه، میزان پروتئین خام و فیتات فسفر دانه را در هردو رقم افزایش داد. بالاترین مقادیر عملکرد دانه و نشاسته دانه در شرایط آبیاری نرمال و تنش خشکی مربوط به رقم للمی-2 بود. درحالیکه، رقم مینامینوکوری بیشترین مقدار پروتین خام، پنتوزان کل، پنتوزان قابل حل در آب و فیتات فسفر دانه را به خود اختصاص داد. همچنین، نتایج این آزمایش نشان داد که کاربرد مقدار کافی کودهای نیتروژن، فسفر و پتاسیم میتواند اثرات زیانبار تنش خشکی را کاهش دهد. علاوه برآن، انتخاب ژنوتیپهای متحمل در برابر تنش خشکی مانند رقم للمی-2 جهت به حد اقل رسانیدن خسارت ناشی از تنش خشکی مفید میباشد. | ||
کلیدواژهها | ||
پروتئین؛ پنتوزان؛ عملکرد؛ فیتات؛ گندم | ||
مراجع | ||
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