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اثر کم‌آبیاری بر ویژگی‌های زراعی هیبریدهای جدید آفتابگردان | ||
| به زراعی نهال و بذر | ||
| مقاله 6، دوره 34، شماره 1، خرداد 1397، صفحه 89-108 اصل مقاله (209.06 K) | ||
| شناسه دیجیتال (DOI): 10.22092/sppj.2018.118103 | ||
| نویسندگان | ||
| اسدالله زارعی سیاه بیدی* 1؛ عباس رضایی‌زاد2 | ||
| 1مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی کرمانشاه | ||
| 2مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی استان کرمانشاه، سازمان تحقیقات، آموزش و ترویج کشاورزی، کرمانشاه، ایران | ||
| چکیده | ||
| به‌منظور بررسی اثر کم‌آبیاری بر خصوصیات زراعی هیبریدهای جدید آفتابگردان و تعیین ارقام متحمل به خشکی، آزمایشی در قالب طرح بلوک‌های کامل تصادفی با سه تکرار طی سال‌های 93-1392 در ایستگاه تحقیقات کشاورزی اسلام‌آباد غرب اجرا شد. در این آزمایش چهار هیبرید جدید آفتابگردان (فرخ، شمس، قاسم و برزگر) در سه رژیم آبیاری (آبیاری کامل، تنش ملایم و تنش شدید با تأمین 100، 75 و 50 درصد نیاز آبی گیاه) مورد ارزیابی قرار گرفتند. نتایج تجزیه واریانس مرکب نشان داد که اثر رژیم آبیاری و ژنوتیپ بر همه صفات شامل تعداد روز تا گلدهی و رسیدگی فیزیولوژیکی، طول دوره پر شدن دانه، قطر طبق، تعداد دانه در طبق، ارتفاع بوته، عملکرد دانه، عملکرد بیولوژیکی و شاخص برداشت در سطح احتمال یک درصد معنی‌دار بود. اثر متقابل رژیم آبیاری و ژنوتیپ بر همه صفات (به جز تعداد دانه در طبق) معنی‌دار بود. نتایج مقایسه میانگین نشان داد که عملکرد دانه هیبریدهای متوسط‌رس (شمس و برزگر) در هر سه رژیم آبیاری بیشتر از هیبریدهای زودرس (فرخ و قاسم) بود. بیشترین عملکرد دانه (5007 کیلوگرم در هکتار) در هیبرید برزگر و با آبیاری کامل به دست آمد در حالی که هیبرید قاسم در شرایط تنش شدید کمترین عملکرد دانه (1859 کیلوگرم در هکتار) را تولید کرد. | ||
| کلیدواژه‌ها | ||
| آفتابگردان؛ دانه روغنی؛ تنش خشکی؛ عملکرد دانه؛ شاخص برداشت | ||
| عنوان مقاله [English] | ||
| Effect of Deficit Irrigation on Agronomic Characteristics of New Sunflower Hybrids | ||
| نویسندگان [English] | ||
| A. Zareei Siahbidi1؛ A. Rezaei Zad2 | ||
| 1Department, Kermanshah Agricultural and Natural Resources Research and Education Center | ||
| 2respectively, Crop and Horticultural Science Research Department, Kermanshah Agricultural and Natural Resources Research and Education Center, AREEO, Kermanshah, Iran | ||
| چکیده [English] | ||
| To evaluate the effect of deficit irrigation on agronomic characteristics of new sunflower hybrids and to determine drought tolerant cultivars, an experiment was conducted based on a randomized complete block design (RCBD), with three replications during 2013–14 at the Agricultural Research Station of Islamabad-e-Gharb, Kermanshah, Iran. In this experiment, four new hybrids of sunflower (Farokh, Shams, Ghasem and Barzegar) were evaluated in three irrigation regimes (full irrigation, mild stress and severe stress by supplying 100, 75 and 50% of the crop water requirement). Results of combined analysis of variance showed that the effect of irrigation regime and genotype on all traits including days to flowering and physiological maturity, seed filling duration, head diameter, number of seeds per head, plant height, seed yield, biological yield and harvest index was significant (p≤0.01). The interaction of irrigation regime and genotype on all traits (except for the number of seeds per head) was significant. The results of the mean comparison showed that the seed yield of medium maturing hybrids (Shams and Barzegar) in all three irrigation regimes was higher than the early maturing hybrids (Farrokh and Ghasem). The highest seed yield (5007 kgha-1) was obtained in Barzegar hybrid with full irrigation, while Ghasem hybrid produced the lowest seed yield (1859 kgha-1) under severe stress conditions. | ||
| کلیدواژه‌ها [English] | ||
| Sunflower, oilseed, Drought Stress, seed yield, harvest index | ||
| مراجع | ||
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