疏雄对板栗幼果矿质元素质量分数的影响  

Effect of Thinning Staminate Inflorescences on Content of Mineral Element in Young Fruit of Chinese Chestnut

作　　者：谢鹏[1] 郭素娟[1] 吕文君[1] 

机构地区：[1]省部共建森林培育与保护教育部重点实验室(北京林业大学),北京100083

出　　处：《东北林业大学学报》2014年第7期51-55,共5页Journal of Northeast Forestry University

基　　金：国家林业公益性行业科研专项重大项目(201204401);"十二五"科技支撑专题(2013BAD14B0402)

摘　　要：以板栗‘燕山早丰’(Castanea mollissima‘Yanshanzaofeng’)为试材,研究了不同时期、不同强度疏雄对板栗幼果中矿质元素质量分数的影响。结果表明:疏雄对矿质元素在板栗刺壳和子房中质量分数的影响不尽相同,疏雄对板栗刺壳中Ca元素和子房中Fe元素的质量分数无影响。具有显著增加板栗幼果中N、P、K、B、Mg、Mn、Cu元素质量分数的效应。不同强度疏雄对板栗幼果矿质元素质量分数的影响大于不同时期,强度越大越有利于矿质元素的积累。在雄花初开期疏除所有枝条上90%的雄花序较为适宜。We studied the effect of thinning staminate inflorescences in different periods and intensities on mineral element in fruit of Chinese chestnut ＇ Yanshanzaofeng＇. The effect of thinning staminate inflorescences on the contents of mineral element in cupules and ovaries were different. The effect of thinning staminate inflorescences on the contents of mineral element in cupules and ovaries was not same. Thinning staminate inflorescences had no effect on the content of Ca in cupules and the content of Fe in ovaries, and it improved the content of N, P, K, B, Mg, Mn and Cu in young fruit. The influence of thinning staminate inflorescences in different intensities were higher than that of different periods on the content of mineral element in young fruits of Chinese chestnut, and the larger intensities were benefit to the mineral element accumulation. Overall, the intensity is thinning all of the staminate inflorescences of shoots in early flowering stage.

关 键 词：疏雄 板栗 矿质元素 幼果期 

分 类 号：S664.2[农业科学—果树学]