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پاسخ عملکرد و اجزای عملکرد ذرت دانهای (Zea mays L.) سینگل کراس 704 به محلول‌پاشی هورمون‌های سیتوکینین و اکسین در آرایش‌های مختلف کاشت در شرایط تنش شوری | ||
| به زراعی نهال و بذر | ||
| مقاله 1، دوره 34، شماره 2، آذر 1397، صفحه 113-133 اصل مقاله (278.78 K) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22092/sppj.2018.118940 | ||
| نویسندگان | ||
| داوود دوانی* 1؛ مجید نبی‌پور2؛ حبیب‌اله روشنفکر دزفولی2 | ||
| 1سازمان تحقیقات، آموزش و ترویج کشاورزی | ||
| 2گروه زراعت و اصلاح نباتات، دانشگاه شهید چمران اهواز، اهواز، ایران | ||
| چکیده | ||
| به منظور ارزیابی اثر هورمون‌های سیتوکینین (صفر و 50 میلی‌گرم در لیتر) و اکسین (صفر و 10 میلی‌گرم در لیتر) و آرایش کاشت (یک ردیف وسط پشته، دو ردیف طرفین پشته و یک ردیف کف فارو) بر عملکرد ذرت دانهای در شرایط شوری آزمایشی به صورت اسپلیت‌فاکتوریل در قالب طرح بلوک‌‌های کامل تصادفی با سه تکرار در سال‌های 1392 و 1393در مرکز تحقیقات کشاورزی و منابع طبیعی بوشهر اجرا گردید. آرایش کاشت در کرت‌های اصلی و تنظیم‌کننده‌ها بصورت فاکتوریل در کرت‌های فرعی بررسی گردید. نتایج نشان داد که کاشت دو ردیف در طرفین پشته و کف فارو عملکرد دانه را به ترتیب 7/31 و 6/74 درصد افزایش دادند (01/0p <). در دو سال آزمایش محلول‌پاشی سیتوکینین (44/13 درصد) و اکسین (56/22 درصد) موجب افزایش عملکرد دانه شد. کاشت کف فارو با محلول‌پاشی سیتوکینین بیشترین ارتفاع گیاه را داشت. در هر سه آرایش کاشت در تیمار مصرف سیتوکینین، مصرف اکسین باعث افزایش تعداد ردیف دانه بلال و تعداد دانه در ردیف شد. سیتوکینین و اکسین وزن هزار دانه را به ترتیب 42/14 و 36/14 درصد افزایش دادند (01/0p <). در هر سه آرایش کاشت مصرف سیتوکینین و اکسین میانگین شاخص برداشت را به ترتیب 01/19 و 72/30 درصد افزایش دادند (01/0p <). نتایج این تحقیق نشان داد که کاشت کف فارو و محلول‌پاشی سیتوکینین در مرحله 8 تا 10 برگی و اکسین در زمان کاکل‌دهی عملکرد دانه را افزایش داد. | ||
| کلیدواژه‌ها | ||
| ذرت دانهای؛ تنظیم‌کننده رشد؛ کاکل‌دهی؛ کاشت کف فارو؛ مرحله رشد | ||
| عنوان مقاله [English] | ||
| Response of Yield and Yield Components of Grain Maize (Zea mays L.) to Foliar Application of Cytokinin and Auxin in Different Planting Arrangements Under Saline Stress Conditions | ||
| نویسندگان [English] | ||
| D. davani1؛ M. Nabipour2؛ H. Roshanfekr Dezfouli2 | ||
| 1Shahid Chamran University of Ahvaz, Ahvaz, Iran | ||
| 2Shahid Chamran University of Ahvaz, Ahvaz, Iran | ||
| چکیده [English] | ||
| To study the effect of cytokinin (0 as control and 50 mgl-1) and auxin (0 as control and 10 mgl-1) hormones and planting arrangements (single row, double rows and furrow plantings) on grain yield and yield compoments of maize SC704 under saline stress conditions, a field experiment was conducted as split factorial arrangements using randomized complete block design with three replications in 2013 and 2014 in Bushehr Agricultural and Natural Resources Research Center. The experimental factors included: planting arrangement in main-plots and growth regulators as factorial in subplots. Results showed that double rows and furrow planting increased grain yield by 31.7% and 74.6%, respectively (p < 0.01). Foliar application of cytokinin and auxin in both years increased grain yield. The highest plant height obtained in furrow planting and foliar application cytokinin hormone. Cytokinin and auxin application increased the number of rows per ear and number of grain per row in all planting arrangements. Cytokinin and auxin increased 1000 grain weight by 14.42% and 14.46%, respectively (p < 0.01). The application of cytokinin and auxin in different planting arrangements increased harvest index by 19% and 30.72%, respectively (p < 0.01). The results showed that furrow planting and foliar application of cytokinin in the V8-V10 stage and auxin at the silking stage increased grain yield of maize SC704 under saline stress conditions. | ||
| کلیدواژه‌ها [English] | ||
| Growth regulator, silking stage, furrow planting, Growth stage | ||
| مراجع | ||
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