苹果花期抗冻剂的研制  

Preliminary Report on a Cryoprotective Agents for the Flowering of Apple

作　　者：董少鹏[1] 张建诚[1] 范建春[1] 席吉龙[1] 杜克明[2] 沈红星[1] 

机构地区：[1]山西省农业科学院棉花研究所,山西运城044000 [2]中国农业科学院农业环境与可持续发展研究所,北京100081

出　　处：《山西果树》2015年第4期1-4,共4页Shanxi Fruits

基　　金："十二五"国家科技支撑计划重点项目"重大农业气象灾害防控与管理技术研究与示范"(2011BAD32B03)

摘　　要：通过配方设计、配方应用效果检验筛选试验,研制出了1种针对苹果花期低温霜冻害的专用抗冻剂kd-4。该抗冻剂的500倍液于花期喷施富士苹果树后第2天能使花朵在-2℃12h的低温胁迫下显著抗冻,使花朵相对电导率比喷清水对照降低37.7%;喷后第5天能使花朵在-2℃4h的低温胁迫下极显著抗冻,相对电导率比对照降低57.2%;喷后第4天还能使叶片在-4℃12h的低温胁迫下显著抗冻,叶片相对电导率比对照低23.8%。因此,可根据天气预报于苹果花期倒春寒来临前4天内喷施500倍该抗冻剂来预防苹果花期冻害。A cryoprotective agent kd- 4was developed for preventing the frost damage of flowering apple by designing formulations,testing the application effect.This agent diluted by 500 times could significantly increase the anti-freezing capability of Fuji apple＇s flowers on the second day after being sprayed and make the flowers tolerate-2 ℃for 12 hours and the relative conductivity of reduce 37.7% comparing with spraying water（CK）.The agent could significantly increase the anti-freezing capability of flowers on the fifth day after being sprayed and make the flowers tolerate-2℃for 4hours and the relative conductivity reduce 57.2%comparing with CK.It could also significantly increase the anti-freezing capability of leaves on the fourth day after being sprayed and make the leaves tolerate-4 ℃for 12 hours and the relative conductivity reduce 23.8% comparing with CK.So it could apply in preventing apple frost damage by spraying this agent diluted by 500 times in four days before cold spell coming.

关 键 词：苹果 抗冻剂 花期 相对电导率 

分 类 号：S661.1[农业科学—果树学] S482.99[农业科学—园艺学]