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Studies on the adaptability of chamaecrista *** red earth in Fujian China

Studies on the adaptability of Chamaecrista *** red earth in...

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中国—澳大利亚可持续性草地管理研讨会

作者： Huang Yibin~1 Ying Zhaoyang~1 Chen Zhitong~1 Li Yanchun~1 and Weng Boqi~1 1 Agricultural Ecology Institute Fujian Academy of Agricultural Science/Fujian Engineering and Technology Research Centre for Hilly Prataculture Fuzhou Fujian Province 350013 China

＜正＞Aimed at the problems of lacking leguminous forage source for developing prataculture and ecological restoration in the red earth region in Southern China,40 strains of chamaecrista spp. have been introduced from Australia to screen their ecological adaptability in Fujian *** RAPD analysis by using 16 random primers showed that,all the tested strains of chamaecrista spp. could be divided into 5 *** result was in accord with its genetic characters,but was inconsistent with the clustering analysis result of their adaptability *** experiment results of their ecological adaptability showed that,biomass yield of 30 strains,overwintering ability of 9 strains and seedling growth of 7 strains were better than that of present demonstrative strain （chamaecrista rotundifolia CPI34721）.The clustering analysis results by using 14 evaluating indices showed that,40 tested strains of chamaecrista *** be divided into 8 typical groups,among which 35 strains were concentrated in four types of group（A～D）.The investigation results on the individual and population growing characters of different clustering groups were as *** strains in groupA（chamaecrista nictitans ATF2217 etc.） were erective type,mid-early maturing, high seed yield,high biomass and low regenerating capacity,which were suitable to be utilised by single harvesting *** strains in group B（chamaecrista rotundifolia CPI92985 and CPI34721 etc.） were semi-creeping type,mid-early maturing,high biomass,rich nutrient components andstrong regenerating capacity under fertilising condition,which were suitable to be intercropped in orchard or comprehensively *** strains in group C（chamaecrista rotundifolia ATF2228 etc.） were creeping type,strong overwintering capacity,early maturing with low biomass production, which were suitable to be intercropped in tea *** strains in group D（chamaecrista rotundifolia CPI86134 etc.） were nearly erective type and late maturing,bot

关键词： forage:chamaecrista spp. C.rotundifolia C.nictitans red soil,plant selection

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