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Studies on Morphologic Variation in Festuca pratensis H. Collected from Abroad

FU Xin-nian1,2,WANG Zan2,SHI Shang-li1,GAO Hong-wen2,LIU Jian-ning3(1.College of Prataculture,Gansu Agriculture University,Lanzhou 730070,China; 2.Institute of Animal Science,Chinese Academy of Agricultural Sciences, Beijing 100193.China;3.Institute of Animal Science,Shanxi Academy of Agricultural Sciences,Taiyuan 030032,China)  
Eleven morphologic traits of 72 wild F.pratensis H.accessions were studied.The results showed that there were extensive variations in morphology.The most significant variance lie in the number of spikelets per panicle,followed by the number of florets per spikelet and inside glume length and then lemma length.Mean while,coefficient of variation and principal component analysis showed that four characters including the number of spikelets per panicle,the number of florets per spikelet,plant height and inside glume length were main factors which produced morphological variation of F.pratensis H.Based on the morphological traits,cluster analysis showed that,all 72 accessions of F.pratensis H.were divided into 3 groups.
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