不同种源苦楝果实和种核表型性状在种源内的变异系数变幅为8.24-20.

Coefficient of variation on different types of fruits and Melia azedarach nuclear phenotypic traits in provenance ranged 8.24-20.78%, mean coefficient of variation was 14.47%, indicating the presence of abundant neem provenance level variation phenotypic traits. Each index phenotype, the minimum coefficient of variation of fruit shape index, coefficient of variation of the maximum volume of the seed cores. On different parts, the variation coefficient seed cores is greater than the coefficient of variation of the fruit, the fruit described phenotypic trait stability than seed cores. On the coefficient of variation, the coefficient of variation of the volume and types of nuclear species nuclear seed weight significantly higher than other phenotypes index, indicating low kernel weight and seed traits core volume stability, the potential for a larger choice in production.

The variation coefficient of the fruit and the nucleomorphic traits of different sources in the seed source was 8.24-20.78 percent, and the mean coefficient of variation was 14.47 percent, indicating that there was a rich variation in the species horizontal phenotype. Among the phenotypic indicators, the coefficient of variation of the fruit index is the smallest, and the coefficient of variation of the seed core volume is the largest. In terms of different parts, the coefficient of variation of seed nuclei is greater than the coefficient of variation of the fruit, indicating that the phenotype stability of the fruit is higher than that of the seed nucleus. As far as the coefficient of variation is concerned, the coefficient of variation of the seed core volume and the 100-grain weight of the seed is significantly higher than that of other phenotycital indicators, indicating that the stability of the nucleus volume and 100-grain weight characteristics is lower and the potential to be selected in production is greater.

The variation coefficient of fruit and kernel phenotypic characters of Melia azedarach from different provenances was 8.24-20.78%, and the mean variation coefficient was 14.47%, which indicated that there were abundant variation of phenotypic characters of Melia azedarach at provenance level. Among the phenotypic indexes, the coefficient of variation of fruit shape index is the smallest, and the coefficient of variation of seed kernel volume is the largest. In terms of different parts, the coefficient of variation of seed nucleus is greater than that of fruit, which indicates that the stability of fruit phenotype is higher than that of seed nucleus. As far as the coefficient of variation is concerned, the coefficient of variation of seed kernel volume and 100 kernel weight is significantly higher than other phenotypic indexes, indicating that the stability of seed kernel volume and 100 kernel weight characters is low and the potential of selection in production is large.<br>