果树叶片氮素贮藏和再利用规律及其对果树生长发育的影响  

THE NITROGEN STORAGE AND REUTILIZATION PATTERN OF FRUIT TREE LEAVES AND ITS EFFECTS ON FRUIT TREE GROWTH AND DEVELOPMENT

作　　者：曾骧[1] 韩振海[1] 郝中宁[2] 

机构地区：[1]北京农业大学园艺系 [2]北京商业管理干部学院

出　　处：《北京农业大学学报》1991年第2期97-102,共6页

基　　金：国家自然科学基金会资助

摘　　要：简括综述了果树叶片是果树 N 素库之一、叶片 N 素回撒的时间和形态、叶片回撤 N 素的贮藏部位和形态、早春果树生长发育对叶片回撒 N 素的再利用及其生物学效应;讨论了增加叶片回撤 N 素的措施。在果树局部叶片施用(15)~N-尿素的示踪研究中,阐明了局部贮藏占优势及其次年再利用的特点;讨论了应用植物生长调节剂如 NAA 和乙烯利(CEPA)对促进叶内氮素回撤、节约氮素的实用意义。The major part of this minireview is author' s research work in recent years,addition to some others'.It briefly reviewed some research acqui- sitions as follows:the role of storage nitrogen in fruit trees;the role of lea- ves as a nitrogen pool in fruit trees; the time and form of nitrogen transported out of leaves;the site and form of storage nitrogen come from leaves; in the spring the reutilization and biological effects of nitrogen come from leaves last year;and the way which cou|d promote nitrogen transportation out of leaves. The results which was gotten by'N-urea applied on fruit trees suggested the characteristics about the predominance of storage and reutilization of the nitro- gen come from leaves.The practical significance on the use of plant growth regulators,such as NAA or Ethrel,to promote nitrogen transportation out of leaves was discussed.

关 键 词：果树 叶片 氮素 生长调节剂 

分 类 号：S660.1[农业科学—果树学]