冷藏盆栽桃出库时期对开花坐果的影响

[目的]探究延后栽培中控温方式对果树开花坐果的影响。[方法]以冷藏盆栽桃为试材,研究不同出库时期对冷藏盆栽桃开花坐果的影响。[结果]结果表明:随着出库时期延后,冷藏盆栽桃开花物候期加快,花期缩短,花朵直径、花柱长度变短小,僵芽率上升,花粉量、花粉生活力、坐果率下降。花芽萌动至花期的持续高温是造成坐果率下降的主要原因。[结论]该研究为丰富果树休眠理论及盆栽果树、设施果树的延后生产提供了理论依据。

Effects of Different Periods of Stopping Cold Storage on Flowing and Fruit-setting of Potted Peach

[Objective] The objective of the research was to investigate the effects of controlling temperature pattern on flowing and fruit-setting of fruit tree in delayed cultivation.[Method] Taking refrigerated pot peach as tested materials,the effects of different periods of stopping cold storage on flowering and fruit-setting of potted peach were studied.[Result] With the delay of periods of stopping cold storage,flowering phenophase in potted peach was quicken,florescence was shorten,bloom diameter and polar length were shorten,freezing bud rate was raised,and pollen amount,pollen viability and fruit-setting rate were decreased.Continuous high temperature from flower bud germination to florescence wasa major reason that caused the decrease of fruit-setting.[Conclusion] The research provided theoretical basis for enriching dormancy theory of fruit tree and delaying production of potted and facilities fruit tree.