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تغییرات کیفیت بذر ذرت (هیبرید KSC 704) در تیمار‌های مختلف کود، زغال زیستی و قارچ تریکودرما در گیاه مادری | ||
| علوم و فناوری بذر ایران | ||
| مقاله 11، دوره 8، شماره 1 - شماره پیاپی 15، تیر 1398، صفحه 145-160 اصل مقاله (621.15 K) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22034/ijsst.2019.110802.1098 | ||
| نویسندگان | ||
| مهدی احمدیوسفی1؛ بهنام کامکار* 2؛ جاوید قرخلو3 | ||
| 1دانشگاه علوم کشاورزی و منابع طبیعی گرگان | ||
| 2گروه زراعت، دانشگاه علوم کشاورزی و ‏منابع طبیعی دانشگاه گرگان | ||
| 3گروه زراعت، دانشگاه علوم کشاورزی و منابع طبیعی گرگان | ||
| چکیده | ||
| این آزمایش جهت بررسی تغییرات کیفیت بذر در تیمار‌های مختلف کود، زغال زیستی و قارچ تریکودرما روی گیاه مادری به اسپلیت پلات فاکتوریل بر پایه طرح بلوک‌های کامل تصادفی با سه تکرار در مزرعه نمونه شهرستان جیرفت در سال 1395 اجراء شد. چهار سطح کود (NPK) به ترتیب شاهد بدون کود،30درصد،70درصد و 100درصد توصیه کودی منطقه) به عنوان فاکتور اصلی و دو سطح استفاده و عدم استفاده از زغال زیستی و سه سطح قارچ تریکودرما؛ به ترتیب شاهد بدون قارچ، Trichoderma atroviride و Trichodema harzianum به عنوان فاکتورهای فرعی در نظر گرفته شدند. جهت بررسی کیفیت بذرهای ذرت (هیبرید KSC.704) تولید شده روی بوته‌های مادری، آزمون‌های جوانه‌زنی استاندارد، سرما و پیری تسریع‌شده و محاسبه سرعت جوانه‌زنی، طول گیاهچه و وزن خشک گیاهچه انجام شد. نتایج نشان داد که استفاده از زغال زیستی، گونه تریکودرما و سطوح مختلف کودی بر درصد گیاهچه عادی، سرعت جوانه‌زنی، طول گیاهچه و وزن خشک گیاهچه در آزمون‌های جوانه‌زنی استاندارد، سرما و پیری تسریع‌شده اثر معنی‌داری داشتند و حداکثر کیفیت بذر بر اساس آزمون‌های جوانه‌زنی استاندارد، سرما و پیری تسریع‌شده، تحت شرایط زغال زیستی، قارچ T harzianum و سطح کودی 70 درصد حاصل شد. با توجه به نتایج بدست آمده از آزمون جوانه‌زنی استاندارد و آزمون‌های ارزیابی بنیه بذر (آزمون سرما و آزمون پیری تسریع‌شده)، استفاده از زغال زیستی، سطوح کودی مختلف و نوع قارچ باعث افزایش کیفیت و مرغوبیت بذور تولیدشده روی بوته مادری نسبت به شرایط شاهد شد. | ||
| کلیدواژه‌ها | ||
| جوانه‌زنی؛ گیاهچه عادی؛ قدرت بذر | ||
| عنوان مقاله [English] | ||
| Changes in seed quality of maize (KSC.704 hybrid) on the mother plant in different fertilizer, biochar and Trichoderma fungus treatments | ||
| نویسندگان [English] | ||
| mehdi ahmadyousefi1؛ Behnam Kamkar2؛ Javid Gherekhloo3 | ||
| 1Gorgan University of Agricultural Sciences and Natural Resources | ||
| 2Agronomy Department, Gorgan University of Agricultural Sciences and Natural Resources | ||
| 3Agronomy Department, Gorgan University of Agricultural Sciences and Natural Resources | ||
| چکیده [English] | ||
| This experiment was conducted as split – plot factorial based on randomized complete block design with three replications to determine the changes in maize’s seed quality on the parent plant at Jiroft's Nemooneh Field in 1395. The main factor was four levels of fertilizers (NPK) respectively representing the control, 30%, 70%, and 100% of recommended value) and biochar (respectively representing no biochar and biochar application), and two strains of Trichoderma (respectively representing Trichoderma atroviride and Trichodema harzianum) were assigned to sub plot. To assess the quality of maize seed (SC.704 hybrid) produced on the parent plant, seed vigor tests (cold test and accelerated ageing test) and germination test (normal seedling percentage, germination rate, seedling length and weight) were performed. The results showed that utilization of biochar, Trichoderma strains and fertilizer levels significantly affected normal seedling percentage, germination rate, and seedling length dry weight in standard germination, cold and accelerated ageing tests. The highest seed quality based on standard germination, cold and accelerated ageing tests was obtained via application of biochar, fungi Trichoderma (Trichodema harzianum) and 70% of the amount of fertilizer recommended for the region. According to the results obtained from standard germination and seed vigor tests (cold and accelerated ageing tests), using biochar, different fertilizer levels and fungus type leads to enhanced quality of seeds produced on maternal plant in comparison to control. | ||
| کلیدواژه‌ها [English] | ||
| Biochar, Line, Test | ||
| مراجع | ||
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