福建农业学报2011，Vol.26Issue(6)：981-984,4.
不同栽培技术措施对番木瓜两性株高温变性的抑制效应
Effect of Cultivation Conditions on High Temperature Gender Alteration of Hermaphroditic Papaya (Carica papaya, L.)
摘要
Abstract
Papaya, Carica papaya L. . Is one of the major fruits in the tropical and subtropical regions. Hermaphroditic variety is generally preferred for commerce as its more desirable fruit shape and quality can bring higher profitability. However, the plant's gender expression can be affected by ambient temperature. At elevated temperatures, the plant tends to produce male flowers with intermittent fruiting, resulting in decreased yields. In order to search for remedy to overcome the problem, four treatments were tested on hermaphroditic papaya trees during the months of July and August in the years from 2007 to 2009. The treatments included (1) mulching under the tree with wet straw or fresh grass, (2) pruning inflorescence, (2) ring-girdling on trunk, and (4) combining the above three methods. The results showed that all treatments significantly repressed the gender alteration, decreased the numbers of male flowers and intermittent fruiting, and increased the number of fruits on the trees, as compared with the control. However, among the 4 treatments, the combination of 3 methods appeared to be the best, as it was most effective in completely suppressing the intermittent fruiting at high temperature.关键词
番木瓜/两性株/性别转换/间断结果/高温/栽培技术Key words
Papaya/ Carica papaya L. / hermaphroditic plant/ gender alteration/ intermittent fruiting/ high temperature/ cultivation techniques.分类
农业科技引用本文复制引用
熊月明,郭林榕,黄雄峰,张丽梅,林旗华..不同栽培技术措施对番木瓜两性株高温变性的抑制效应[J].福建农业学报,2011,26(6):981-984,4.基金项目
福建省发展改革委员会项目[闽发改投资(2009) 958号] （2009）
福州市科技局项目(2011-G-102) （2011-G-102）
