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اثر دماهای یخبندان بر سنین مختلف ژنوتیپهای نخود در شرایط کنترل شده | ||
| به زراعی نهال و بذر | ||
| مقاله 3، دوره 31، شماره 2، مرداد 1394، صفحه 161-172 اصل مقاله (191.38 K) | ||
| شناسه دیجیتال (DOI): 10.22092/sppj.2017.110572 | ||
| نویسنده | ||
| داود صادقزاده اهری* | ||
| چکیده | ||
| به منظور بررسی اثرات دماهای مختلف زیر صفر بر ژنوتیپهای پیشرفته نخود دیم، این مطالعه در سال زراعی 92-1391 در ایستگاه تحقیقات کشاورزی دیم مراغه و در شرایط کنترل شده (اطاقک سرما) در قالب آزمایش اسپلیت- اسپلیت پلات با سه تکرار و بر پایه طرح آماری بلوکهای کامل تصادفی اجرا شد. سنین مختلف گیاهچهای (1، 3 و 6 هفتهای) در کرتهای اصلی، دماهای مختلف زیر صفر ( صفر، 5-، 10-، 15- و 20- درجه سانتیگراد) در کرتهای فرعی و ژنوتیپهای نخود (ILC 3279 ،FLIP 00-75 ، ILC 482، FLIP 00-84،Sel. 96th. 11439، ILC 533 و رقم سارال) در کرتهای فرعی- فرعی قرار گرفتند. نتایج نشان داد که تاثیر عامل سن گیاهچه بر نسبت مقاومت به سرما (FRR) از نظر آماری معنیدار نبود، ولی بیشترین و کمترین تحمل سرما به ترتیب در سنین 3 و 6 هفتگی مشاهده شد. عامل شدت سرما تاثیر معنیداری بر تحمل سرمای ژنوتیپها داشت و با افزایش شدت سرما از صفر به سمت 20- درجه سانتیگراد، تحمل سرمای ژنوتیپها کاهش یافت. تفاوت بین ژنوتیپهای آزمایشی از نظر نسبت تحمل سرما نیز معنی دار بود و در مجموع، رقم ســارال با نسبت تحمل سرمای معادل 89/0 در مقایسه با سایر لاینهای آزمایشی، برتری داشته و از تحمل مطلوب و قابل قبولی برخوردار بود. | ||
| کلیدواژهها | ||
| نخود؛ مناطق سردسیر دیم؛ تحمل سرما؛ سن گیاهچه | ||
| عنوان مقاله [English] | ||
| Effect of Freezing Temperatures on Different Seedling Ages of Chickpea Genotypes under Controlled Conditions | ||
| نویسندگان [English] | ||
| D. Sadeghzadeh Ahari | ||
| چکیده [English] | ||
| In order to study the effects of sub-zero temperatures on advanced chickpea genotypes, this study was carried out as split-split plot based on randomized complete block design with three replications under controlled conditions (cold room) at Maragheh Dryland Agricultural Research Station during 2013-2014 cropping season. Different seedling stages (1,3 and 6 weeks after planting) were in main plots, different sub-zero temperatures (0, -5, -10, -15 and -20 °C) in sub plots and chickpea genotypes (ILC3279, FLIP00-75, ILC482, FLIP00-84, Sel.96th.11439, ILC 533 and cultivar Saral) in sub-sub plots. Results showed that seedling age did not significantly affect the frost resistance ratio (FRR), but the highest and the lowest FRR were observed in seedlings with 3 and 6 weeks age, respectively. Cold severity had significant effect (p≤ 0.01) on FRR and with increasing cold severity from 0 to -20°C, FRR of genotypes was decreased. Differences among chickpea genotypes were significant (p≤ 0.01) and Saral cultivar with FRR = 0.89 showed an acceptable level of cold tolerance comparing with the other genotypes. | ||
| کلیدواژهها [English] | ||
| Chickpea, cold dryland areas, Cold tolerance, seedling age | ||
| مراجع | ||
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