权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Development of a portable air control system Meteotron and its application to tropical fruit tress

便携式空气控制系统Meteotron的研制及其在热带果树上的应用

基本信息

批准号：
08556042
负责人：
SAKURATANI Tetsuo
金额：
$ 7.1万
依托单位：
KYOTO UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (A)
财政年份：
1996
资助国家：
日本
起止时间：
1996 至 1998
项目状态：
已结题

项目摘要

A portable air control system, "Meteotron", for controlling temperature and humidity in a chamber installed to a branch of fruit tree was successfully developed. This system consists of a unit controlling temperature, a unit controlling humidity, two flexible polyvinyl chloride chambers, power supply and solar cells battery. The dimension of the chamber is 25 * 25 * 50 cm^3. Temperature in the chamber can be regulated between 20。C and 40。C with an accuracy of *0.5。C and humidity between 30% and 80% with an accuracy of *5%.Applying this system to a mango tree, induction of floral buds and water dynamics in the tree were investigated. Four-year-old mango [Mangifera indica L.cv. Irwin] tree was grown under plastic house conditions, at an experimental farm in Kyoto University, Kyoto, Japan. On December 10, 1997, two uniformed shoots which had sprouted in April were selected At the almost basal point of the selected two shoots, a sap flow sensor was installed. One shoot of these was covered with the chamber to be subjected to warm environment The diameter was 9.4 and 11.4 mm for outside and inside shoot, respectively. The provided day/night air and dew point temperatures inside the chamber was 30/15。C and 22/12。C.The partial environmental control was continued to February 13, 1998. At the beginning of the treatment, there was no shoot forming visible induction of floral buds. Peak sap flow in the shoot in warmer chamber was observed in the morning while that outside in the afternoon. This suggested that water in the tree was redistributed among shoots. All shoots except for one that was subjected at warmer environment by Meteotoron induced terminal flowers.

研制成功了一种安装在果树分支上的便携式温湿度控制系统Meteotron。该系统由温控单元、湿度控制单元、两个柔性聚氯乙烯室、电源和太阳能电池组成。腔室的尺寸为25 * 25 * 50 cm ^3。室内温度可在20. C和40。C，精度为 *0.5。将该系统应用于芒果树，研究了其花芽诱导和树体内水分动态。四年生芒果（Mangifera indica L.cv.）在日本京都的京都大学的实验农场，在塑料房条件下生长欧文树。在1997年12月10日，选择了两个在4月份发芽的整齐的枝条。在所选择的两个枝条的几乎基部的点处，安装了液流传感器。其中一个枝条用温室覆盖，使其处于温暖环境中。外枝直径为9.4 mm，内枝直径为11.4 mm。所提供的白天/夜晚空气和室内露点温度为30/15。C和22/12。C.部分环境控制持续到1998年2月13日。在处理开始时，没有形成芽的花芽的可见诱导。温室内茎段液流高峰出现在上午，室外茎段液流高峰出现在下午。这表明树中的水分在枝条之间重新分配。除了一个在温暖的环境中受到Meteotoron诱导的顶生花外，所有的芽。