Growth Differences at Seedlings Stage and Early Selection of Castanopsis carlesii from Different Provenances
In order to provide references for selection of superior provenances of Castanopsis carlesii,taking C.carlesii seedlings from 12 provenances as research materials,differences in growths of C.carlesii seedlings from different provenances were analyzed.Correlation analysis was carried out among seed traits(1 000-grain weight,contents of soluble sugar and starch)and growth indexes of seedlings.Combined with cluster analysis and membership function analysis,fast-growing provenances at early stage were selected.Results showed that there were extremely significant differences among seedling heights and ground diameters of C.carlesii seed-lings from different provenances.Coefficients of variation of seedling height and ground diameter were relative high,means of which were 22.8%and 17.0%respectively.Soluble sugar content had extremely significantly positive correlation with seedling height and had significantly positive correlation with ground diameter.Soluble sugar content could be used as supplementary index for early selection of provenances.Combined with cluster analysis and membership function analysis,three fast-growing superior provenances were preliminarily select-ed,which were Jiangxi Dingnan(JXDN),Fujian Hua'an(FJHA)and Anhui Qimen(AHQM)provenances.
growthseed traitearly selection of provenanceCastanopsis carlesii
万方数据
维普
