湖南黄皮树种源试验苗期测定

对湖南省黄皮树１１个种源１年生苗木共４个性状组的２２个性状作了测定和分析。其结果表明：（１）４个性状组中，生产力性状组的性状变异系数较大，而幼苗、复叶和地上生长性状组的变异较小，较稳定；（２）１８个性状，在种源间存在显著差异；（３）苗高、地径和苗皮重３个性状的多重比较说明，龙山石牌种源的苗木生长量最大，生产力最高；（４）建立了７对性状变异与采种地主要环境因子显著相关的典型相关变量。其中，海拔高、纬度、年均降水量与子叶出土高、幼苗高、苗高、第五柄高、节间数、第一小叶长和宽等性状变异呈负相关，而经度、年均温反之

The Variabilities of the Provenance Seedling Character of Phellodendron chinense from Hunan Province

The variabilities of 22 characters of Phellodendron chinense among 11 provenances from Hunan Province are analyzed.The results show that the variabilites of 18 characters are obvious and the variation coefficients of the production characters are higher than those of the young seedling,the leaf and the growth characters.On some objective characters such as bark weight,seedling height and diameter,the provenance P04 is higher than any other.Moreover,canonical correlative analysis indicates that latitude,altitude and precipitation of original site are negatively correlative to some young seedling and growth characters,such as the height of cotyledons,young seedling height,seedling height,the length and width of leaf and so on,but longitude,temperature are positively,correlative to those characters.