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اثر شوری آب آبیاری بر عملکرد و صفات زراعی سه هیبرید ذرت (Zea mays L.) با استفاده از آبیاری قطرهای نواری | ||
| تحقیقات آب و خاک ایران | ||
| مقاله 16، دوره 50، شماره 8، دی 1398، صفحه 2037-2049 اصل مقاله (691.45 K) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22059/ijswr.2019.271808.668073 | ||
| نویسندگان | ||
| مرتضی خوش سیما1؛ حمیده نوری* 2 | ||
| 1دانشجوی کارشناسی ارشد، گروه مهندسی آبیاری و آبادانی، دانشکده مهندسی و فناوری کشاورزی، پردیس کشاورزی و منابع طبیعی،دانشگاه تهران، کرج، ایران | ||
| 2استادیار، گروه مهندسی آب، دانشکده مهندسی و فناوری کشاورزی، پردیس کشاورزی و منابع طبیعی. ، کرج، دانشگاه تهران،کرج، ایران | ||
| چکیده | ||
| استفاده از آبهای نامتعارف از جمله آبهای شور برای آبیاری، با توجه به افزایش روز افزون تقاضای آب در مناطق خشک و نیمه‌خشک امری اجتناب ناپذیر است. به منظور بررسی اثر تنش شوری بر رشد و عملکرد سه هیبرید ذرت در شرایط استفاده از آبیاری قطرهای نواری، آزمایشی در سال 1396 به صورت فاکتوریل و در قالب طرح بلوک کاملاً تصادفی انجام گرفت. تیمارهای آزمایشی شامل سه هیبرید ذرت (سینگل کراس 704، سینگل کراس 400 و سینگل کراس 260) و سه سطح شوری آب آبیاری 7/0، 3 و 5 دسیزیمنس بر متر بودند. برای اطمینان از جوانهزنی بذرها، تمامی تیمارها از مرحله جوانهزنی تا ارتفاع 40 سانتیمتری ذرت با آب شیرین آبیاری شده و سپس تنش شوری اعمال شد. نتایج حاصل از تجزیه واریانس و مقایسه میانگین صفات اندازهگیری شده (وزن تر علوفه تولیدی، وزن خشک، عملکرد دانه، وزن هزار دانه، شاخص سطح برگ و ارتفاع گیاه) نشان داد که این صفات تحت تأثیر سطوح مختلف شوری اختلاف معنیداری را داشتند، به طوری که بالاترین مقدار هر یک از این صفات در تیمار شاهد و پایین‌ترین مقدار آن در تیمار حداکثر شوری مشاهده شد. همچنین نتایج حاصل از تجزیه واریانس دادهها نشاندهنده اثر معنیدار هیبرید بر روی اکثر صفات اندازهگیری شده بود، به طوری که بیشترین مقدار مربوط به رقم سینگل کراس 704 بود. | ||
| کلیدواژه‌ها | ||
| آبیاری قطرهای؛ بهره‌وری آب؛ شوری آب؛ عملکرد؛ هیبرید‌های ذرت | ||
| عنوان مقاله [English] | ||
| Effect of Irrigation Water Salinity on Yield and Agronomic Charactristics of Three Corn (Zea mays L.) Hybrids Using Drip-Tape Irrigation | ||
| نویسندگان [English] | ||
| Morteza Khoshsima1؛ Hamideh Noory2 | ||
| 1MSc Student, Department of Irrigation and Reclamation Engineering, College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran | ||
| 2Assistant professor, Department of Irrigation and Reclamation Eng., College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran. | ||
| چکیده [English] | ||
| The application of marginal water, such as saline water for irrigation, is inevitable due to increasing demand for water in arid and semi-arid regions. In order to study the effect of salinity stress on growth and yield of three fodder maize hybrids using drip-tape irrigation, a factorial experiment in randomized complete block design was carried out in 2017. The treatments consisted of three maize hybrids (SC 704, SC 400 and SC 260) and three levels of water salinity (0.7, 3 and 5 dS/m). To ensure seed germination, all treatments were irrigated with fresh water from germination stage to 40 cm height of corn and then salinity stress was applied. The results of variance analysis and comparison of mean measured charactristics (fresh and dry weight of forage, grain yield, 1000-grain weight, leaf area index and plant height) showed that there were significant differences among charactristics under different levels of water salinity. The most and the least amount of each charactristic were observed in the control and maximum salinity stress treatments, respectively. The result of this study showed a significant effect of maize hybrid type on most of the measured charactristics, as the most amounts was found in SC 704. | ||
| کلیدواژه‌ها [English] | ||
| Drip Irrigation, Water Productivity, Water salinity, yield, Maize hybrids | ||
| مراجع | ||
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