苹果梨授粉柱头数对座果率和果实性状的影响

苹果梨授粉柱头数超过二个时．幼果期果形指数显著增加，有形成大果的基础.随授粉柱头数的增加，座果率增加．种子数增多．单果重有上升趋势，除涂抹四个柱头的和其他的种子数有显著差异外均无显著差异，徐沫柱头组种子数所产生的显著差异，是否由涂抹药剂引起，有待进一步研究证实．苹果梨种子数和单果重及果形间经测验无显著相关关系．

Effeds of Pouination Stiqna Numbers of Applepears on Fruit Setting Percentage and Fruit Properties

When there are more than two pollination stigmas of applepears, fruit figure indexes in young fruit period increase dramatically and there is basis for growing big fruilts. With the increasing of pollination stigmas, fruit setting percentages incrense, there are more seeds and single fruit weight rises. There is no notable difference except the differences between the seeds of the four stigmns smeared and the others. It will be further studied and verified whether the notable differences made by the seed numbers of smeared stigmns are caused by smearing medicament. Applepear seed numbers, single fruit weights and stems of fruit size didn' t show any significant correlation by t-text.