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中国农学通报 ›› 2015, Vol. 31 ›› Issue (4): 141-146.doi: 10.11924/j.issn.1000-6850.2014-2081

• 林学 园艺 园林 • 上一篇    下一篇

间伐对上海地区‘宫川’柑橘密植园改造的效果

徐芳杰,杜纪红,骆军,张学英,叶正文,曾蓉,戴富明   

  1. 上海市农业科学院,上海市农业科学院,上海市农业科学院作物林果研究所,上海市农业科学院,上海市农业科学院,上海市农业科学院,上海市农业科学院生态环境保护研究所
  • 收稿日期:2014-07-30 修回日期:2014-12-09 接受日期:2014-12-15 出版日期:2015-03-20 发布日期:2015-03-20
  • 通讯作者: 张学英
  • 基金资助:
    上海市科委项目“崇明柑橘规模化种植品质提升关键技术研究与示范”(08DZ1906600);上海市科委项目“崇明林果等经济作物高效种植模式研究与示范”(09DZ1906200);上海市农委项目“果树新品种及果园土壤养分矫正技术示范与推广”[沪农科推字(2010)第5-4号];院区县合作科技入户工程项目[沪农科推字(2012)第5-4号]。

Effect of Intermediate Cutting on Airtight Citrus (cv. Gongchuan) Orchard Modification in Shanghai Area

  • Received:2014-07-30 Revised:2014-12-09 Accepted:2014-12-15 Online:2015-03-20 Published:2015-03-20

摘要: 为改善上海地区高龄‘宫川’橘园栽培密度过高、树势衰退、坐果不良等现状,探索合理间伐对柑橘园改造的效果。2009—2012年间,我们对上海崇明绿华镇一个树龄20年、株行距为3m×3m的‘宫川’果园进行间伐,并持续监测了树体冠层结构变化、叶片叶绿素含量、树脂病发生情况、坐果率、产量和果实品质等。结果表明:合理间伐不仅能有效改善树体冠层内部通风透光条件,更能提高对树脂病的抗性,明显提升成熟果实可溶性固形物含量,同时能明显提高单株产量。进一步检测发现,间伐后果实中蔗糖和葡萄糖含量提升显著,其中2011年10月测得果实中蔗糖和葡萄糖含量分别比同期对照高出50.9%和24.8%,但果实中几种主要有机酸含量与同期对照相比无明显差异,故认为合理间伐能在促进增产的同时有效提升果实糖酸比,改善果实风味,是一项有效的密植园改造措施。

关键词: 生理响应, 生理响应

Abstract: In order to improve the current situation of low bear rate and tree potential recession of closing, high density citrus ‘Gongchuan’ orchard. During 2009-2012, we investigated the effects of intermediate cuttings on disease resistance, fruit development and flavor quality of ‘Gongchuan’ in different growth stages in an over 20-year-old airtight orchard with 3m×3m planting density in Shanghai, Chongming island. The results showed that the suitable intermediate cuttings formed proper planting density, together with appropriate field management can fundamentally improve yield and quality, as well as the resin disease resistance. Furthermore, high performance liquid chromatographic (HPLC) determination of content and component soluble sugar and organic acid were also performed and we found that intermediate cuttings had remarkable effect on increasing the concentrations of fruit sucrose and glucose concentrations, which were 50.9% and 24.8% higher than the control (CK) respectively in October 2011. However, the concentrations of several main organic acids showed no significant difference between treatment and CK. Therefore, we suggested that intermediate cuttings can not only improve the yield, but also increase fruit sugar acid ratio as well as fruit quality. All of above concluded that intermediate cutting is an effective method for dense orchard modification.