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مطالعه اثر رقابت کنجدشیطانی بر تغییرات شاخصهای رشد، عملکرد و اجزای عملکرد سویا و پتانسیل تولید بذر این علف هرز در شرایط مزرعه | ||
| آفات و بیماری های گیاهی | ||
| دوره 88، شماره 2 - شماره پیاپی 111، اسفند 1399، صفحه 151-163 اصل مقاله (620.97 K) | ||
| نوع مقاله: علوم علفهای هرز | ||
| شناسه دیجیتال (DOI): 10.22092/jaep.2020.122585.1237 | ||
| نویسندگان | ||
| دورسن امامی1؛ آسیه سیاهمرگویی* 1؛ بهنام کامکار2؛ محبوبه بصیری3 | ||
| 1گروه زراعت، دانشکده تولید گیاهی، دانشگاه علوم کشاورزی و منابع طبیعی گرگان | ||
| 2دانشکده تولید گیاهی، دانشگاه علوم کشاورزی و منابع طبیعی گرگان | ||
| 3دانشگاه زابل | ||
| چکیده | ||
| بهمنظور بررسی قدرت رقابتی سویا (رقم دیپیایکس) در شرایط تداخل با تراکمهای مختلف علفهرز کنجدشیطانی (Cleome viscosa L.) (صفر، 3، 5، 10، 15، 20، 30 و 45 بوته در متر مربع) آزمایشی بهصورت طرح بلوکهای کامل تصادفی با سه تکرار در سال زراعی 95-1394 در شهرستان کلاله انجام شد. تراکمهای مختلف علف هرز کنجدشیطانی اثر معنیداری بر عملکرد بیولوژیک، عملکرد اقتصادی، وزن صد دانه و تعداد غلاف در بوته سویا داشت. بیشترین میزان عملکرد دانه و محصول بیولوژیک سویا، در تیمار شاهد عاری از علف هرز بهترتیب برابر با 9/374 و 30/734 گرم در متر مربع بود. اما با افزایش تراکم این علف هرز، عملکرد دانه و محصول بیولوژیک سویا بهشکل غیرخطی کاهش یافت. بهنحوی که در تیمار تداخل با 45 بوته در متر مربع علف هرز، عملکرد اقتصادی و محصول بیولوژیک بهترتیب به 172 و 38/344 گرم در متر مربع رسید. | ||
| کلیدواژهها | ||
| آستانه خسارت اقتصادی؛ رقابت؛ علف هرز مهاجم؛ مدل سطح برگ نسبی | ||
| عنوان مقاله [English] | ||
| Studying competitive effect of Asian spider flower on changes in growth indices, yield and components yield of soybean and seed production potential of this weed in field condition | ||
| نویسندگان [English] | ||
| Dorsen Emami Kangar1؛ Asieh Siahmarguee1؛ Behnam Kamkar2؛ Mahboobeh Basiri3 | ||
| 1Department of Agronomy, Plant production, Gorgan University of Agricultural Sciences and Natural Recourses. | ||
| 2Department of Agronomy, Plant production, Gorgan University of Agricultural Sciences and Natural Recourses. | ||
| 3Zabol University | ||
| چکیده [English] | ||
| In order to investigate the soybean competitive ability (DPX cultivar) under interference condition different densities of Asian spider flower (0, 3, 5, 10, 15, 20, 30, 45 plant/m-2); an experiment was conducted based on randomized complete blocks design with three replications in 2015–2016 growing season in Kalaleh, Golestan province. Different densities of Asian spider flower had a significant effect on biological yield, economic yield, 100 grain weight and pods per plant of soybean. The highest grain and biological yields of soybean were 374.9 and 734.30 g/m2, respectively which observed in weed-free treatment. However, these traits declined nonlinearly as weed density increased, so that in 45 plant/m-2interference treatment, economic and biological yields reached 172 and 344.38 g/m2, respectively. | ||
| کلیدواژهها [English] | ||
| Competition, economic damage threshold, invasive weed, relative leaf area model | ||
| مراجع | ||
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