Effects of Different Pollination Methods on Fruit Characters of Passion Fruit
The method of pollination has a significant impact on the development and fruit characteristics of passion fruit.To reveal its influence and mechanism,this experiment used purple fruit passion fruit as material and adopted three types of pollination methods of interplant cross-pollination,intraplant cross-pollination,and self-pollination.Fruit maturing time,fruit set rate,fruit appearance and shape,fruit internal quality and seed traits were determined,and the correlations between the various trait indicators was analyzed.The results showed:(1)The fruit set rate of interplant cross-pollination and self-pollination plants was high,reaching 98.3％and 96.7％,respectively.(2)There were significant differences on single fruit weight and single fruit seed number among different pollination methods,in the order of self-pollination＞interplant cross-pollination＞intraplant cross-pollination.The edible rate of the fruit by self-pollination and interplant cross-pollination was higher,while the fruit length and width by self-pollination were the largest.(3)There was a significant positive correlation between single fruit weight and fruit width,and fruit width and fruit length also had an extremely significant positive correlation.The single fruit weight and single fruit seed num-ber of interplant cross-pollination and intraplant cross-pollination showed an extremely significant positive cor-relation.The ratio of soluble solid to acid of the fruit of intraplant cross-pollination showed an extremely sig-nificant positive correlation with the maturation of fruit,and extremely significant negative correlation with the titratable acid.
Tainong No.1passion fruitheterologous plants and flowerspollinationsingle fruit weightsignificant correlation
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