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بررسی تأثیر محلولپاشی با نانوذرات سیلیس در افزایش مقاومت به خشکی ارزن دانهای در شرایط آب و هوایی کاشمر | ||
| تحقیقات آب و خاک ایران | ||
| دوره 51، شماره 9، آذر 1399، صفحه 2307-2322 اصل مقاله (1.05 M) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22059/ijswr.2020.302497.668606 | ||
| نویسندگان | ||
| مهدی مکاری* 1؛ میثم عابدین پور2 | ||
| 1گروه مهندسی آب، دانشکده کشاورزی، مرکز آموزش عالی کاشمر، کاشمر، ایران | ||
| 2گروه مهندسی آب، دانشکده کشاورزی، مرکز آموزش عالی کاشمر، کاشمر، ایران | ||
| چکیده | ||
| امروزه استفاده از نانوذرات در علوم مختلف و از جمله کشاورزی گسترش زیادی یافته است. یکی از نقشهای مهم نانوذرات در تولید گیاهان زراعی و باغی، افزایش مقاومت گیاهان در برابر تنشهای محیطی از جمله تنش شوری و خشکی است. بنابراین هدف پژوهش حاضر بررسی تأثیر محلولپاشی با نانوذرات سیلیس در افزایش مقاومت به تنش خشکی در ارزن دانهای بود. به این منظور پژوهشی مزرعهای به‌صورت کرتهای یک بار خرد شده در قالب طرح کاملاً تصادفی و در سه تکرار اجرا گردید. کرتهای اصلی شامل چهار تیمار آبیاری تأمین 100، 80، 60 و 40 درصد نیاز آبی و کرتهای فرعی شامل شش تیمار محلولپاشی با غلظتهای صفر، 100، 200، 300، 400 و 500 میلیگرم در لیتر نانوذرات سیلیس بودند. نتایج نشان داد که کمآبیاری باعث کاهش معنیدار ارتفاع گیاه، وزن هزار دانه، عملکرد دانه، شاخص برداشت و بهرهوری آب در سطح احتمال یک درصد گردید. از طرفی در تمام تیمارهای آبیاری محلولپاشی با نانوذرات سیلیس، عملکرد دانه، شاخص برداشت و بهرهوری آب را بهطور معنیداری افزایش داد. بیشترین عملکرد دانه، شاخص برداشت و بهرهوری آب در تیمار آبیاری کامل (100 درصد نیاز آبی) و محلولپاشی با غلظت 500 میلیگرم در لیتر نانوذرات و کمترین مقدار آنها در تیمار 40 درصد نیاز آبی و بدون محلولپاشی مشاهده گردید. با توجه به بحران شدید منابع آبی در منطقه خشک کاشمر، تأمین 80 درصد نیاز آبی ارزن دانهای به همراه محلولپاشی با غلظت 500 میلیگرم در لیتر نانوذرات سیلیس در مرحله پنجهزنی و گلدهی ارزن دانهای، برای مقابله با بحران کمآبی در این منطقه قابل توصیه است. | ||
| کلیدواژه‌ها | ||
| کمآبیاری؛ نانوذرات سیلیس؛ عملکرد دانه؛ کارایی مصرف آب | ||
| عنوان مقاله [English] | ||
| Investigating the Effect of Spraying Silica Nanoparticles in Increasing the Drought Resistance of Millet Seedlings in Kashmar Weather Conditions | ||
| نویسندگان [English] | ||
| mahdi mokari1؛ Meysam Abedinpour2 | ||
| 1Water Engineering Department, Agriculture Faculty, Kashmar Higher Education Institute, Kashmar, Iran | ||
| 2Water Engineering Department, Agriculture Faculty, Kashmar Higher Education Institute, Kashmar, Iran | ||
| چکیده [English] | ||
| Today, application of nanoparticles in various sciences including agriculture has expanded greatly. One of the important roles of nanoparticles in agricultural and horticultural production is to increase plant resistance to environmental stresses, such as salinity and water stress. Therefore, the present study investigated the effect of spraying with silica nanoparticles on increasing drought resistance of grain millet. For this purpose, a field research was conducted in the form of split plots in a completely randomized design with three replications. The main plots consisted of four irrigation treatments i.e. 100, 80, 60, and 40 percent of the crop water requirement, and the sub-plots included six spraying treatments with concentrations of 0, 100, 200, 300, 400 and 500 mg/l of silica nanoparticles. The results indicated that the deficit irrigation significantly reduced plant height, grain weight, grain yield, harvest index and water productivity at 1% level. On the other hand, in all irrigation treatments, spraying with silica nanoparticles could significantly increase grain yield, harvest index and water productivity. The highest grain yield, harvest index and water productivity were observed in full irrigation treatment (100% water requirement) and 500 mg/l spraying of nanoparticles and the lowest amount was observed in 40% water treatment without spraying. Due to the severe scarcity of water resources in the arid region of Kashmar, providing 80% of the water requirement of millet along with spraying with a concentration of 500 mg/l silica nanoparticles is recommended in the tillering stage and flowering to deal with water crisis in the study area. | ||
| کلیدواژه‌ها [English] | ||
| Deficit irrigation, Silica nanoparticles, Grain yield, Water use efficiency | ||
| مراجع | ||
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