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STUDIES ON THE GROWTH REGULATION OF FRUIT TREES IN THAILAND

泰国果树生长规律研究

基本信息

批准号：
07045034
负责人：
OGATA Ryosuke
金额：
$ 1.98万
依托单位：
UTSUNOMIYA UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for international Scientific Research
财政年份：
1995
资助国家：
日本
起止时间：
1995 至 1996
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07045034/
关键词：
Growth regulation Lychee Mango 花芽チオウレア発芽

项目摘要

During this term, by our mutual cooperation, both University members carried out researches on the regulationof tropical fruit trees, and collected many information on production techniques.Chemical regulation of the growth of lychee or longan trees were not so easy by only single chemical application, however, applications of single spray of paclobutrazol at 2 or 3 months before flowering followed by two sequential sprays of ethephon increased three times of flowering of lychee trees than those of untreated trees. Some changes from vegetative phase to reproductive phase of lychee were recognized with application of paclobutrazol followed by two applications of ethephon.Thiourea application at the fully mature leaf stage produced uniform shoot development within 2 to 2.2 weeks after the treatment. Application of paclobutrazol on 16 days after bud emergence produced a hundred percent flower buds on 120 days after thiourea application.Single and repeart foliar application of paclobutrazo … More l at 1000 and 2000 ppm were applied to mango tree cv. Nam Dok Mai in June to induce off-season flowering. The paclobutrazol treated tree produced flower within 102 to 114 days after application of, while the untreated tree produced flowers at 29 to 41 days later. The amount of flowering shoots of all paclobutrazol treated trees was higher than that of the untreated trees.Thirty percent of the shoots from paclobutrazol treated mango trees developed floral primordia from the axil of bud scale was visible under the microscope at 91 days after treatment. One hundred percent of shoots from treated trees developed floral shoot at 112 days after treatment, but no such development was found in the shoot from untreated trees.Researchers from Kasetsart University had studied the methods of endogenous bioregulators in fruit trees in Utsunomiya University. Some shortage of analytical equipments, glass wears or chemicals disturbed to finish the analysis of endogenous bioregulators of subtropical fruit trees in Thailand. Less

在此期间，通过我们的相互合作，两所大学的成员进行了热带果树的调控研究，并收集了许多生产技术方面的信息。荔枝或龙眼树的生长的化学调控不是那么容易通过单一的化学物质施用，但是，在开花前2或3个月喷一次多效唑，然后连续喷两次乙烯利，荔枝树比那些未经处理的树。多效唑和乙烯利处理后，荔枝从营养生长期到生殖生长期发生了一些变化，在完全成熟的叶片期施用乙烯利，在处理后2 ~ 2.2周内，新梢发育均匀。现蕾后16天喷施多效唑，硫脲喷施后120天，花蕾率达100%。多效唑单次和多次叶面喷施 ...更多信息 L在1000和2000 ppm下施用到芒果树CV.在六月的南多梅，以诱导淡季开花。多效唑处理的树在施用后102至114天内开花，而未处理的树在29至41天后开花。多效唑处理后91 d，有30%的芒果新梢从芽鳞腋处发育出花原基，在显微镜下可见花原基的形成。在处理后112天，处理树的枝条100%发育成花芽，而未处理树的枝条未发育成花芽。日本农业大学的研究人员在宇都宫大学研究了果树内源生物调节剂的方法。由于分析仪器的不足、玻璃的磨损或化学品的干扰，泰国亚热带果树内源生物调节物质的分析无法完成。少