2011年龙眼挂果率高的气象成因分析

通过对2010/2011年度玉林市龙眼秋梢抽生期—开花着果期的农业气象条件进行诊断分析,得出2011年挂果率高的主要原因是：2010年8—9月份的光温水条件配合较好对秋梢抽生相当有利,紧接着从10份开始出现了秋、冬、春三季连旱,冬季和早春的气候也比较寒冷,在干旱和寒冷的双重作用下,非常有利于控制冬梢和促进花芽分化,也有利于抑制抽穗期间“冲梢”现象的发生,因此成花情况普遍良好;由于2011年开花期比正常年景偏迟了将近1个月,因此很好地避过了正常年份开花着果期的低温阴雨天气,使得2011年出现了花多果也多的喜人景象,挂果率是最近几年中最好的一年。在今后的龙眼生产中,应根据龙眼的开花结果习性和玉林市的气候特点,采取一些相应的对策,加强管理,以最大限度地提高挂果率。

Longan fruiting rate in 2011 Analysis of meteorological

By 2010/11 Yulin longan Qiushao pumping period - period of flowering of fruit agro-meteorological conditions for diagnostic analysis, the fruiting rate in 2011 is mainly due to: 8-9 March 2010, with better light warm water conditions very favorable for the fall tree pumping, followed by 10 began to emerge from the autumn, winter and spring quarters drought, winter and early spring weather is relatively cold, arid and the dual role of the cold, winter shoot is very conducive to control and promote differentiation, but also help to curb heading during the \"red tip\" phenomenon, the flowering of generally good; Since flowering in 2011 than in normal times, nearly a partial month late, so very well avoid the normal flowering of the fruit of years of cold rainy weather, making the 2011 results also appeared to spend more and more gratifying scene, fruiting rate is the best year in recent years. Longan production in the future, should be based on the results of longan flowering habit and Yulin climate characteristics, take some measures to strengthen management, to maximize fruiting rate.