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《Pratacultural Science》 2012-09
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Morphological variation of Medicago falcata pods and seeds in Xinjiang

WANG Yu-xiang,ZHANG Bo(Key Laboratory of Grassland Resource and Ecology of Xinjiang,Xinjiang Agricultural University,Urumqi 830052,China)  
In order to reveal phenotypic variation and variation patterns in different districts across Xinjiang province,13 populations of wild Medicago falcata were taken as experimental materials and pod length,pod width,seeds number per pod,seed length,seed width and 1 000-seed-weight were measured.Phenotypic variations among and within populations were analyzed using variance analysis and correlation analysis.The results showed that,various characters of Medicago Falcata groups had significant differences.Pod length,pod width,seeds number per pod,seed length and seed width all have a significant positive correlation with 1 000-seed weight.Hierarchical cluster analysis revealed these 13 populations were divided into three groups: 1) Altai;2) BeiTun,TaCheng and FuYun;and 3) BuErJin,YuMin,EMin,HaBahe,Tekesi,JiMunai,Urumqi of Nanshan,FuHai and ChaBuchaer.These findings can offer basic data for further study of conservation biology and genetic breeding of this species.
【Fund】: 新疆农业大学草业科学国家重点学科开放课题“环境因子与苜蓿落花、落荚的关系研究”(XJCYB-2011-03);新疆绿洲区优质牧草选育及生产利用技术集成与示范(2011BAD17B05-2);新牧4号紫花苜蓿良种扩繁与高产示范(2011GB2G400005)
【CateGory Index】: S541.9
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