| 周昌敏1，何兆桓2，杨苞梅2，李国良2，姚丽贤1.环剥对荔枝叶片营养及花果生长发育的影响[J].广东农业科学,2018,45(4):34-42 |
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环剥对荔枝叶片营养及花果生长发育的影响 |
| Effect of girdling on litchi foliar nutrient and development of flower and fruit |
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| DOI：10.16768/j.issn.1004-874X.2018.04.006 |
| 中文关键词: 荔枝 环剥 叶片营养 内源激素 产量 |
| 英文关键词: Litchi girdling foliar nutrient endogenic hormone fruit yield |
| 基金项目:国家现代农业产业技术体系建设专项（CARS-33-08） |
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| 摘要点击次数: 2132 |
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| 中文摘要: |
| 以不环剥为对照，跟踪研究冬季环剥荔枝叶片和花穗中矿质营养、内源激素含量动态变化，探
讨环剥对果实产量及风味品质的影响。结果显示，环剥不同程度降低荔枝叶片在开花前不同时间内的N、
P、Ca、Mg、B 含量，对K 含量没有影响，明显提高叶片Mo 含量。环剥荔枝花穗硝态氮、铵态氮和K 含量显
著提高，但Ca、Mg、Mo 含量显著降低，N、P、B 含量变化不大。叶片和花穗中多种养分含量的下降，是环
剥导致荔枝开花期花量明显减少的重要原因。同时，环剥明显提高叶片脱落酸（ABA）、生长素（IAA）、
赤霉素（GA3）和玉米素核苷（ZR）含量，明显降低花穗ABA、IAA 含量，但提高花穗GA3 和ZR 含量，
有利于减少落果，从而使果实增产57.9%，产值提高260.3%。环剥对果实品质和风味影响不大，但对香气
有一定影响。 |
| 英文摘要: |
| Field experiment in Litchi（ Litchi chinensis Sonn.） was conducted to investigate the effect of girdling
on nutrient and endogenic hormone status in the leaf and flower of Feizixiao Litchi. Further，fruit yield，quality
and flavor as affected by girdling was examined as well. The results showed that girdling in the winter considerably
decreased foliar N，P，Ca，Mg，B content and increased foliar Mo content，but did not affect foliar K content. As
compared to the control，nitrate，ammonium and K contents in the spica were significantly enhanced by girdling，
but Ca，Mg and Mo content were significantly decreased，whereas N，P and B content remained relatively similar.
The nutrient reduction in the leaf and spica by girdling contributed to the considerably decreased amount of flower
in Feizixiao while in blossom. Foliar ABA，IAA，GA3 and ZR content were improved，while ABA and IAA content
in the spica were reduced and GA3 and ZR were increased by girdling，which were beneficial to improve fruit set
and lessen fruit drop. Finally，girdling increased the fruit yield and production value by 57.9% and 260.3%，
respectively. The fruit quality and flavor were not obviously influenced by girdling，but the fruit fragrance might be
altered. |
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