东兴金花茶表型变异研究

Study on Phenotypic Variation of Camellia tunghinensis Chang

摘要:

对东兴金花茶(Camellia tunghinensis Chang)5个自然居群的表型变异特征进行研究。结果表明：东兴金花茶多数表型指标居群间变异大于居群内变异；20项表型指标中，果柄粗(FHT)、果实横径(FD)、果实纵径(FT)和果实重量(FM)等13项指标在居群间的差异达到了极显著水平(P<0.01)，其中，种子重量百分比(SMPF/FM)的变异程度最大，而种宽(SB)的变异程度最小；表型总体在居群间的差异未达到显著水平；按变异系数均值大小，5个居群的排列顺序为SFSH1 (0.272)＞MJG (0.217)＞SFSH (0.207)＞SHL (0.190)＞DGL (0.170)；平均株高、植株基径与各表型性状间的相关性不显著；不同表型性状间存在一定的相关性。

Abstract:

Twenty phenotypic characters from 5 natural populations of Camellia tunghinensis Chang were investigated. The variations in most phenotypic characters among populations were larger than those within populations, in which the variations in 13 characters among populations, such as fruits weight and diameter, eg., were very significant (P＜0.01). The variance range of SMPF/FM was the biggest, and that of seed longitudinal diameter was the smallest. The differences in overall phenotype among populations were not significant. The variation coefficient of 5 populations was in order of SFSH1 (0.272)＞MJG (0.217)＞SFSH (0.207)＞SHL (0.190)＞DGL (0.170). The correlations between average height, plant diameter at basal and various phenotypes characters were not significant, but it existed among phenotypic characters.