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بررسی واکنش هیبریدهای وارداتی و ژنوتیپهای آزاد گرده افشان کلزا به مقدار مصرف بذر | ||
دانش کشاورزی وتولید پایدار | ||
دوره 30، شماره 4، دی 1399، صفحه 95-109 اصل مقاله (547.46 K) | ||
نوع مقاله: مقاله پژوهشی | ||
شناسه دیجیتال (DOI): 10.22034/saps.2020.12297 | ||
نویسندگان | ||
اسداله زارعی سیاه بیدی* 1؛ اشکان عسگری2 | ||
1بخش تحقیقات زراعی و باغی، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی استان کرمانشاه، سازمان تحقیقات، آموزش و ترویج کشاورزی، کرمانشاه، ایران. | ||
2گروه مهندسی کشاورزی، دانشگاه هرمزگان، بندرعباس. ایران | ||
چکیده | ||
اهداف: مطالعه حاضر به منظور تعیین مناسبترین مقدار مصرف بذر در برخی از هیبریدهای وارداتی و ارقام آزاد گرده افشان انجام شد. مواد و روشها: آزمایش بهصورت فاکتوریل در قالب طرح بلوکهای کامل تصادفی در ایستگاه تحقیقاتی اسلام آباد غرب طی سال زراعی 98-1397 اجرا گردید. مقدار مصرف بذر شامل چهار سطح 2، 4، 6 و 8 کیلوگرم در هکتار و ارقام شامل سه هیبرید وارداتی (ناتالی، نپتون و ماراتن)، سه رقم آزاد گردهافشان (نفیس، روهان، نیما) و لاین R15 بود. یافتهها: نتایج نشان داد که مقدار مصرف بذر بر ارتفاع بوته، تعداد شاخه، تعداد خورجین در بوته و عملکرد دانه اثر معنیدار داشت. با افزایش مقدار مصرف بذر، مقادیر ارتفاع بوته افزایش یافت و بیشترین ارتفاع بوته در سطح 8 کیلوگرم بذر مصرفی بدست آمد و اختلاف آن با سایرین معنیدار بود. در حالیکه بیشترین مقادیر تعداد شاخه فرعی و تعداد خورجین در بوته در کمترین مقدار بذر مصرفی (2 کیلوگرم در هکتار) حاصل شد. عملکرد دانه واکنش متفاوتی به مقدار بذر مصرفی داشت، بهطوریکه بیشترین عملکرد دانه کلزا با میانگین 2919 کیلوگرم در هکتار در سطح 6 کیلوگرم بذر مصرفی حاصل گردید البته اختلاف سطوح 4، 6 و 8 کیلوگرم مصرف بذر معنیدار نبود. بیشترین مقدار عملکرد دانه مربوط به هیبرید ماراتن با میانگین عملکرد 3585 کیلوگرم در هکتار بود. درصد روغن نیز بین ارقام مورد مطالعه متفاوت بود و بیشترین مقدار در ناتالی، نپتون و نیما بدست آمد. نتیجه گیری: در کل مقدار مصرف بذر 6 کیلوگرم در هکتار و هیبرید ماراتن بهترین نتایج را به همراه داشتند و توصیه میگردد که تراکم در بذور هیبرید کمتر از بذور آزاد گرده افشان در نظر گرفته شود. | ||
کلیدواژهها | ||
تراکم بوته؛ فنولوژی؛ عملکرد دانه؛ ژنوتیپ؛ درصد روغن | ||
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