扁桃幼果生理脱落与矿质元素浓度的关系

Relationship between Young Almond Fruits Dropping and the Concentration of Mineral Elements

【目的】分析扁桃幼果生理脱落与果实矿质元素浓度的关系。【方法】以新疆‘纸皮’扁桃为试材,在调查期幼果生理脱落规律,分析发育正常幼果、果柄和脱落幼果、果柄间N、P、K、Ca、Mg、B、Zn、Fe、Mn、Cu 10种大、中、微量元素浓度变化差异。【结果】‘纸皮’扁桃的整个生理落果期为盛花后的7-47 d;N、P、K、B、Zn五种矿质元素元素的浓度在整个扁桃幼果生理脱落期均表现为发育正常幼果和果柄高于落果和落果果柄,而Ca、Cu两种元素的浓度则表现为发育正常幼果和果柄低于落果和落果果柄。【结论】‘纸皮’扁桃幼果生理脱落期,树体内充足的N、P、K、B、Zn元素供给有利于扁桃的坐果。

【Objective】In order to make clear the relationship between almond young fruits dropping and the concentration of mineral elements,【Method】to find out the rules of young almond fruits dropping and analyze 10 mineral elements（ N,P,K,Ca,Mg,B,Zn,Fe,Mn and Cu） concentration differences both in normal fruits,fruits stalk and dropping ones,Xinjiang zhipi almond was used.【Result】The results were as follows： the physiological fruit dropping period of Zhipi almond was from the 7th day to 47 th day after full blossom; The concentration of five kinds of mineral elements（ N,P,K,B and Zn） in the normal fruits and their stalk were higher than those in dropping ones during the period,while the concentration of two elements（ Ca,Cu） in the normal fruits and their stalk were lower than that in dropping ones.【Conclusion】Enough supply of N,P,K,B and Zn elements in trees during fruits dropping period would be beneficial to almond fruits setting（ So it should be re- considered）.