中国主要李品种间交配亲和性的研究

STUDY ON COMPATIBILITY AMONG MAIN PLUM VARITIES OF CHINA

本试验选用46个中国李品种,三年共组配108个杂交组合,研究了中国李品种间交配亲和性。试验结果表明:不同杂交组合的亲和性差异很大,108个组合的座果率分布在0～48.20%之间,平均座果率为9.03%。通过研究发现,李自然杂交座果率与作母本时的平均座果率间以及花粉生活力与作父本时的平均座果率间都存在着极显著正相关,相关系数分别为0.7506^(**)和0.7716^(**)。通过本试验筛选出一些亲和力较高的组合,不仅为李树生产提供最适合的授粉树,而且为今后的李树育种提供了选配亲本的理论依据。

Compatibilities among plum rarities have been studied through 108 cross combinations which were combinated by 46 plum rarities.The result sho- wed that the compatibilities of different combinations is 0 48.2%,and the average fruit bearing ratio is 9.03%.It has been found that there are si- gnificant positive correlations between natural cross fruit bearing ratio of plum varity and the average fruit bearing ratio when the rarity is be- ing female parent,and between the pollen viability and the average fru- it bearing ratio when the rarity is being male parent.The correlated co- efficients are 0.7506^(**)and 0.7716^(**)separately.The combinations with high compatibility have been selected.This suply not only the most suitable pollinizer for Plum production,but also theoretical basis of selected ma- ting parents.