ارتباط صفات فیزیولوژیک و فنولوژیک با عملکرد و اجزای عملکرد دانه ژنوتیپ های تریتیکاله در منطقه گنبدکاووس
الموضوعات : بوم شناسی گیاهان زراعیمرضیه رشیدپور 1 , حسین علی فلاحی 2 , عباسعلی نوری نیا 3 , حسین صبوری 4 , شاهپور ابراهیم نژاد 5
1 - دانشجوی کارشناسی ارشد گروه زراعت
2 - استادیار پژوهش مرکز تحقیقات و آموزش کشاورزی
و منابع طبیعی گلستان
3 - استادیار پژوهش مرکز تحقیقات و آموزش کشاورزی
و منابع طبیعی گلستان
4 - دانشیار گروه تولیدات گیاهی
دانشکده کشاورزی و منابع طبیعی دانشگاه گنبد کاووس
5 - مربی پژوهش
مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی مازندران
ساری، ایران
الکلمات المفتاحية: تنوع ژنتیکی, تنوع زیستی, به نژادی, چاودم, همبستگی صفات,
ملخص المقالة :
این بررسی به منظور تعیین صفات فنولوژیک و فیزیولوژیک مؤثر بر افزایش عملکرد دانه و صفات وابسته به آن در 13 ژنوتیپ تریتیکاله شامل ET-79-3،ET-79-4 ، ET-79-17،ET-82-8 ، ET-82-15، ET-82-16، ET-83-20، ET-84-5، ET-84-8، ET-84-15، ET-85-7، ET-85-9 و JUANILO 92 در مزرعه ایستگاه تحقیقات کشاورزی گنبدکاووس در قالب طرح بلوک‌های کامل تصادفی در سه تکرار در سال زراعی 88 -1387 اجرا شد. تجزیه واریانس داده‌ها حاکی از وجود اختلاف بین ژنوتیپ‌ها از نظر ارتفاع گیاه، طول سنبله، تعداد روز تا سنبلهدهی، تعداد روز تا رسیدن فیزیولوژیکی، وزن هزار دانه، تعداد سنبله در متر مربع، تعداد دانه در سنبله، تعداد سنبلچه بارور در سنبله، شاخص برداشت، متوسط سرعت پر شدن دانه، تعداد دانه در متر مربع بود. از لحاظ صفات طول دوره پر شدن دانه، تعداد دانه در سنبلچه بارور، عملکرد کاه و عملکرد بیولوژیک اختلاف معنی‌داری وجود نداشت. ژنوتیپهای ET-82-15 و JUANILO 92 به ترتیب بالاترین و پایینترین عملکرد دانه را به خود اختصاص دادند. عملکرد دانه با عملکرد بیولوژیک، طول دوره پر شدن دانه، سرعت پر شدن دانه، وزن هزار دانه و شاخص برداشت همبستگی مثبت و معنی‌داری نشان داد. بهطورکلی ژنوتیپهای ET-82-15 و ET-84-5 را میتوان در شرایط آب و هوایی گنبدکاووس و مناطق نیمه خشک مشابه برای توسعه کشت معرفی کرد.
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