Study on the Phenotype Diversity of Woody EnergyPlantXanthoceras sorbifolia / 木本能源植物文冠果的表型多样性研究

• Published in: Forest research (Beijing) Vol. 20; no. 3; p. 350
• Main Authors: 牟洪香, 侯新村, 刘巧哲
• Format: Journal Article
• Language: Chinese
• Published: Beijing Chinese Academy of Forestry 01.01.2007
• ISSN: 1001-1498

15 phenotypic tra its w ere investigated fo r 14 popu lations ofXanthoceras sorbifolia Bunge. Phenotypic variat ion, wh ich w ere among populat ions and w ith in popu lations, w ere studied by using nested variance ana lysis and variation coeff icien.t The corre lation ana lysis and c luster ana lysis show ed the relat ion among tra its and geograph ica l facto rs. The variation w ithin populations w as much g reater than that among populat ions. The seed number in fruitw asdecreased w ith the long itude increase. The fru it w idth w as improved w ith lat itude increasing and the annual meantemperature decreasing. Therew as no sign if icant re lationsh ip betw een geog raphic d istances and euclidean d istance. 以文冠果为研究对象, 调查了14个分布区文冠果的15个表型性状, 利用变异系数和巢式方差分析研究了分布区间和分布区内的变异情况; 应用相关分析揭示了表型性状间及其与地理因子间的关系; 运用聚类分析进行了分布区分类。结果表明, 文冠果分布区内的变异大于分布区间的变异, 分布区间的分化相对较小; 出种数随经度的增大而减少, 果宽随纬度的增大而增大, 但随年平均气温的增大而减小, 而其它13个性状随地理位置的改变没有特别明显的变化; 表型性状的欧式距离与地理距离相关不显著。