کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6374873 | 1624684 | 2015 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Drought resistance of wheat alien chromosome addition lines evaluated by membership function value based on multiple traits and drought resistance index of grain yield
ترجمه فارسی عنوان
مقاومت به خشکی ارقام اضافی کروموزوم بیگانه گندم با استفاده از ارزش عملکرد عضویت بر اساس صفات متعدد و شاخص مقاومت به خشکی عملکرد دانه
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کلمات کلیدی
DSLGNSBroad sense heritabilityTGWwater-stressedwell-watered - آب آشامیدنیplant height - ارتفاع گیاهChinese spring - بهار چینیanalysis of variance - تحلیل واریانسANOVA - تحلیل واریانس Analysis of varianceTiller number - شماره تیلرSpikelet number - شماره سنبلهSelection criteria - معیارهای انتخابDrought resistance - مقاومت در برابر خشکسالی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم زراعت و اصلاح نباتات
چکیده انگلیسی
Drought is the single greatest abiotic stress leading to yield loss of wheat worldwide. The long-term domestication and selective breeding in artificial environments may have reduced the drought resistance of wheat. Wheat alien chromosome addition lines, with chromosomes derived from wild species, may possess drought resistant genetic potential and could serve as a bridge for transferring those traits to wheat. The drought resistance of 82 wheat alien chromosome addition lines along with their common parent Chinese Spring were evaluated for 10 agronomic traits under both well-watered and water-stressed conditions. Spike length was the most stable trait while biomass plantâ1 was the most sensitive trait when subjected to drought stress. Evaluation of heritability and correlations with yield plantâ1 suggested that plant height, peduncle length, distance between spike and flag leaf, grain number spikeâ1 and thousand-grain weight could be used as indicators of drought resistance. The membership function value of drought resistance (MFVD) based on those traits and grain yield plantâ1, indicated 26 of the 82 wheat addition lines expressed high drought resistance. Higher MFVD was observed in the Agropyron elongatum 3E addition line in two years, and it was considered as the most drought resistant material. Analysis of the yield plantâ1 suggested that the drought resistant addition lines identified by MFVD were drought resistant but not very high-yielding, thus they could be used to improve germplasm with high-yield potential but low drought resistance. The drought resistance index (DI) based on yield plantâ1 indicated that 10 addition lines included both drought resistance and greater grain yield, which could be used in moderate stressed areas for improving drought resistance. Among them, addition lines with Aegilops peregrina 4SV and Ae. peregrina 3UV chromosome showed excellent performance and could be further investigated in drought resistance studies or breeding programs.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Field Crops Research - Volume 179, 1 August 2015, Pages 103-112
Journal: Field Crops Research - Volume 179, 1 August 2015, Pages 103-112
نویسندگان
Caiyun Liu, Zhiyuan Yang, Yin-Gang Hu,