اثرات محلول پاشی سولفات روی بر عملکرد و اجزای عملکرد برنج رقم شیرودی

محورهای موضوعی : یافته های نوین کشاورزی

سید حسام الدین ‏حسین‏زاده ¹ , عبد المجید مهدوی دامغانی ² , بابک دلخوش ³ , علی محدثی ⁴

1 - دانشگاه آزاد اسلامی، واحد علوم و تحقیقات، گروه زراعت، تهران، ایران
2 - گروه کشاورزی اکولوژیک، پژوهشکدۀ علوم محیطی، دانشگاه شهید بهشتی
3 - دانشگاه آزاد اسلامی، واحد علوم و تحقیقات، گروه زراعت، تهران، ایران
4 - مرکز تحقیقات برنج، وزرات جهاد کشاورزی، رشت

تاریخ دریافت : 1394/09/06 تاریخ پذیرش : 1394/09/06 تاریخ انتشار : 1391/09/01

کلید واژه: روی, تولید پایدار, عملکرد دانه, برنج,

چکیده مقاله :

با هدف بررسی تأثیر محلول پاشی کلات سولفات روی بر عملکرد و اجزای عملکرد برنج، آزمایشی در ایستگاه تحقیقات برنج تنکابن با 5 تیمار صفر، 2، 4، 6 و 8 در هزار محلول پاشی کلات سولفات روی با چهار تکرار در قالب طرح پایه بلوک‌های کامل تصادفی اجرا شد. محلول پاشی در سه مرحله به ترتیب یک ماه پس از انتقال نشاء به مزرعه اصلی، پس از گلدهی و مرحلۀ شیری شدن دانه انجام شد. نتایج نشان داد تیمار محلول پاشی کلات سولفات روی تأثیر معنی داری بر وزن هزار دانه، تعداد پنجه در متر مربع، تعداد خوشه‌چه در خوشه و درصد خوشه‌چه پر داشت. در غلظت 2 در هزار، بیشترین وزن هزار دانه و پنجه در متر مربع و تعداد خوشه‌چه در خوشه به دست آمد و کمترین مقادیر این شاخص ها در تیمار شاهد مشاهده شد. از آنجایی که روی به عنوان یک عامل ساختمانی، متابولیسم کربوهیدرات ها و ساخت پروتئین ها عمل می کند، نتایج این آزمایش می تواند ناشی از تأثیرات مثبت روی بر فیزیولوژی رشد و تولید عملکرد در برنج باشد. غلظت 2 در هزار بهترین عملکرد و اجزای عملکرد را داشت و کاربرد سولفات روی در این سطح، از نظر اقتصادی نیز قابل قبول خواهد بود و تأثیر مثبتی بر افزایش عملکرد برنج دارد.

چکیده انگلیسی:

Today, due to the increasing world population need to increase production of cereals, especially rice, expected to increase sustainable yield with the aim of research done. Nutrition Zinc to be important in rice production has. The effect of zinc sulfate spray Chelate on yield and yield components of Shiroodi rice cultivar, experimental research station in rice treated with 5 Tonekabon zero, 2, 4, 6 and 8 thousand Chelate sprayed zinc sulfate in the fourth repeat randomized complete block design was conducted. Sprayed in three stages one month after transplanting seedlings to the main field after flowering and milky stage were performed. The results showed that zinc sulfate spray Chelate significant effect on grain weight, number of tillers per square meter, number of panicles and percentage of seed grain was high. Concentration of 2 per thousand, most grain weight and tillers per square meter and number of grains per panicle were recorded and the lowest values of this index in the control group were observed. Since the building as a factor, carbohydrate metabolism and making proteins, the results of this experiment can be positive effects on the physiology of growth and yield of rice is produced. The results also showed that the concentration of two thousand best yield and yield components produced and used in the dose of zinc sulfate, as well as economic terms will be acceptable and positive effect on rice yield will increase.

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