摘要
通过对2004～2005年度钦州市荔枝、龙眼整个发育期的农业气象条件进行诊断分析,得出2005年钦州市荔枝减产的主要原因是:严重的春旱导致花穗不能抽出或花穗弱、花质差;谢花后,久旱遇雨造成异常落果;中迟熟荔枝幼果期遇高温干旱天气,导致生理缺水,造成严重落果,早熟品种'三月红'则出现了罕见的高温逼熟现象;果实膨大期,突遇大雨,暴雨造成裂果;而龙眼的开花授粉期比荔枝迟,避过了不良天气的影响,因而龙眼获得了增产.
This paper conducts the diagnostic analysis on agricultural meteorology condition of the entire growing period of Qinzhou litchi and longan during 2004-2005, and obtains the main reason of underproduction of Qinzhou litchi： The serious spring drought causes the flowered ear not to be able to extract or the flowered ear is weak, the quality of flower is bad, after fading, the prolonged drought following by the rain causes unusual prematurely dropped fruit. The late ripe litchi in Young fruit time meets the high temperature arid weather and leads to the physiology lacking water, and causes the serious prematurely dropped fruit, and the premature variety “threemonth-red” appears the rare high temperature forced ripening phenomenon, if the fruit in expanded time meets the heavy rain suddenly, the rainstorm can causes the dehiscent fruit, But the longan blossomed pollination time is later than the litchi, and evades the bad weather influence, thus the longan has obtained the increased production.
出处
《广西气象》
2005年第4期27-28,61,共3页
Journal of Guangxi Meteorology
关键词
荔枝
龙眼
产量
气象条件分析
Litchi
Longan
output
meteorology condition analysis
