| 黄涛江,刘文华,王振兴,杨秀佳,张林.不同保果方式和气象因子对鲍威尔脐橙冬季落果的影响[J].中国南方果树,2011,40(5): |
| 不同保果方式和气象因子对鲍威尔脐橙冬季落果的影响 |
| Effect of different fruit protecting methods on winter fruit drop of Powell navel orange in different climate factors |
| 投稿时间：2011-05-30 修订日期：2011-06-15 |
| DOI： |
| 中文关键词: 鲍威尔脐橙 越冬落果；影响因子 |
| 英文关键词:Powell Navel Orange Winter fruit-drop Climate factor |
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| 中文摘要: |
| 本研究在保果剂（含2，4-D、杀菌剂、杀螨剂、叶面肥）的两种处理方式下，调查了鲍威尔脐橙在重庆奉节铁佛果园和巫山福田果园两个点的冬季落果情况，结果表明，自然情况下，奉节铁佛果园的鲍威尔脐橙落果率明显低于巫山福田果园的落果率，至翌年2月底，后者的落果率是前者的5倍左右；和对照相比，11月和12月上旬喷两次保果剂处理能够明显降低脐橙的落果率。结合两个点的不同生态气候条件，对落果的原因进行了分析，认为低温特别是-2℃温度持续时间的长短是影响落果的主要原因。 |
| 英文摘要: |
| Abstract:In the present study, dropping rate fruit drop percentage of Powell navel orange was surveyed in Fengjie Tiefu orchard and Wushan Futian orchard during winter with or without fruit anti-dropper treatment. Results showed that the fruit-drop percentage in Fengjie Tiefu orchard was one fifth of that in Wushan Futian orchard under natural conditions in the end of February. When compared with control, two time application of fruit anti-dropper on the early November and December could reduce significantly the fruit drop percentage in the two locations. Moreover, climate analysis indicated that the low temperature, especially the extending period of -2℃ in winter is the main factor affecting fruit drop. |
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