野生香榧种实性状变异研究

通过对安徽黟县、浙江富阳市、建德市3个地区野生香榧种实形态指标进行分析,结果表明:(1)香榧在产地间性状差异较小(仅鲜重出核率表现出显著性差异),变异幅度最大的为建德地区,其次为黟县地区,富阳地区相对较小;(2)产地内株间各项性状均表现出极显著差异,变异幅度最大的是单种重(CV=26.33%),其次为单核重(CV=27.20%),最小的为核径(CV=9.21%);(3)香榧种实的重量与长、径的大小呈极显著线性相关,与长径比相关性不显著;香榧种子的大小和重量与其出核率呈负相关.

Variation and Correlativity Analysis of Fruit Characters of Wild Torreya grandis cv. Merrillii

Analysis on fruit morphological characters of wild Torreya grandis cv. Merrillii collected from Qianxian County of Anhui province, Fuyang and Jiande city of Zhejiang province resulted that there were no significant differences in 3 producing areas. The largest variation coefficient reca was Jiande, the second oneQiaixian and the last Fuyang. There were extremely significant differences among each individual in each areas, the largest variation ccefficient was seed weight ( CV= 26.33% ), the second one was nut weight (CV = 27.20%), the smallest nut diameter (CV= 9.21 %). Seed weight had evident linear correlation with length and diameter, but no significant relation with length and diameter ratio.