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中国农学通报 ›› 2015, Vol. 31 ›› Issue (7): 13-17.doi: 10.11924/j.issn.1000-6850.2014-2164

所属专题: 园艺

• 林学 园艺 园林 • 上一篇    下一篇

DA-6、PBO、6-BA叶面喷施对薄壳山核桃树体发育的影响

张翔   

  1. 南京农业大学
  • 收稿日期:2014-08-08 修回日期:2015-01-15 接受日期:2015-01-20 出版日期:2015-04-03 发布日期:2015-04-03
  • 通讯作者: 张翔
  • 基金资助:
    薄壳山核桃高效栽培技术及模式推广示范

Effect of foliar application of DA-6、PBO and 6-BA on the growth of Carya illinoensis

  • Received:2014-08-08 Revised:2015-01-15 Accepted:2015-01-20 Online:2015-04-03 Published:2015-04-03

摘要: 本研究通过对薄壳山核桃品种‘马罕’2年生幼树进行不同浓度的DA-6、PBO、6-BA叶面喷施,研究它们对薄壳山核桃树体生长的影响,找出适合薄壳山核桃生长的叶面喷施肥及浓度。研究结果表明:DA-6和6-BA不同浓度叶面喷施均提高了枝条的长度和粗度,促进薄壳山核桃形成健壮长枝条,PBO不同浓度叶面喷施降低了枝条长度,增大了枝条粗度,促进薄壳山核桃形成短粗枝条。三种生长调节剂不同浓度叶面喷施后均提高了叶片的叶绿素含量和比叶重,有利于叶片的光合同化,同时也均提高了枝条的碳氮比。

关键词: 体系优化, 体系优化

Abstract: The study through different concentrations of DA-6, PBO, 6-BA foliar spray on the pecan variety ‘Mahan’ 2-year-old saplings, research the impact on the growth of pecan trees to find out suitable foliar spray fertilizer and concentration. The results showed that DA-6 and 6-BA foliar application of different concentrations increased the length and thickness of branches, promote the formation of robust long pecan branches. PBO foliar application of different concentrations reduced the length of branches, increased the thickness of branches and promoted the formation of pecan stubby branches. Three different growth regulators foliar application of different concentrations all increased chlorophyll content and specific leaf weight. Contract in favor of light leaves and also increased the C/N of branches