بررسي سازگاري و پايداري عملكرد دانه ژنوتیپ‌های جو در مناطق سردسير ديم

محورهای موضوعی : توليد محصولات زراعي

غلامرضا خليل زاده ¹

1 - گروه تحقيقات نهال و بذر، مركز تحقيقات و آموزش كشاورزي و منابع طبيعي استان آ . غ – ارميه – ايران

تاریخ دریافت : 1396/10/02 تاریخ پذیرش : 1396/05/19 تاریخ انتشار : 1394/07/15

کلید واژه: پایداری عملکرد, تجزیه مرکب, جو ديم, عملکرد دانه. ,

چکیده مقاله :

به منظور تعيين ژنوتيپ هاي پرمحصول و پایدار، 24 لاين و رقم جو در قالب طرح بلوك‌هاي كامل تصادفي با چهار تكرار در سه سال و 6 منطقه مورد مطالعه و ارزيابي قرار گرفتند. مناطق اجرای آزمایش شامل مناطق سرد معتدل سرد ديم مراغه،كردستان، زنجان، اروميه، سرارود و اردبیل بودند. پس از انجام آزمون یکنواختی واریانس اشتباهات آزمایشی، برای کل مناطق در سالهای مختلف تجزیه مرکب نهایی انجام شد. نتیجه تجزيه واریانس مركب نشان داد كه اثرات ساده سال، مكان و ژنوتيپ و اثرات متقابل سال× مکان، مكان× ژنوتيپ و اثر سه جانبة سال × مكان × ژنوتيپ بر عملكرد دانه از نظر آماري معني‏دار بودند. بيشترين وكمترين عملکرد دانه در سه سال برای کل ژنوتيپ‌ها به ترتيب مربوط به ايستگاه سرارود (2893 کیلوگرم در هكتار) و ايستگاه اردبیل (1524 کیلوگرم در هكتار) بوده و لاين 22 با عملكرد دانه 2499 و لاین 12 با 2471 کیلوگرم در هكتار بيشترين عملكرد دانه را در بين ژنوتيپ‌هاي آزمايشي در سه سال و شش منطقه داشتند. نتایج حاصل از تجزیه پایداری به روش پارامتر چهار لین و بینز، ضریب تغییرات عملکرد دانه، واریانس محیطی و مدل رتبه بندی نشان داد که لاین‌ 14 با پدیگری (Schuyler//Alpha/Durra/3/…) پایدارترین لاین بود. ژنوتیپ های شماره 11 و 12 دارای پایداری نسبی بودند.

چکیده انگلیسی:

In order to determine the high yielding, the grain yielding stability , 24 promising barley lines and cultivars, a study was carried out based on RCB – design with four replications in three years ( 2011 to 2014 ) in 6 cold and moderate cold rainfed regions of Maragheh, Kurdestan, Zanjan, Urmia, Sararud and Ardabil. After testing of error uniformity, a combined analysis was carried out in three years for each location. Also, final combination of ANOVA was performed for all environments (3 years and 6 locations ). Results of combined ANOVA analysis showed that locationgenotype and year×location×genotype were significant. The highest average green yield belonged to Sararud with ( 2893kg/ha ) and the lowest one belonged to Ardabil satation ( 1524kg/ha . Lines number 12 with with ( 2471kg/ha ) and 22 with 2499kg/ha ) had the highest average grain yield among genotypes in 3 3 years and 6 locations. Results of stability analysis using Lin and Binns, CV% and rank methods showed that line number 14 ( Schuyler //Alpha/ Durra/3/… ) had the highest stability and lines number 11 and 12 showed relatively stable genotypes in comparison with other ones.

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