摘要
在茂名市水果科学研究所实验基地试验研究了不同季节施用以 KClO_3为主要成份的龙眼促花调控剂对龙眼促花和果实质量影响的效应。结果表明:按龙眼树冠直径每米施药量180 g 处理,不同季节施药的促花效果存在显著差别,干旱少雨季节促花效果较佳,湿润多雨季节促花效果较差,促花效果与气候条件、龙眼树体长势及枝梢老熟程度有密切关系;不同季节成熟收获的龙眼果实质量存在一定差异,反季节与正造栽培收获的龙眼相比,可食率提高,果核变小,但糖份含量等品质指标则较差,其中以春末夏初收获的果实个大肉厚,外观较佳,市场销售价较高,因此夏末至秋初干燥季节施药处理、春末夏初收获龙眼的调控方案较适合茂名等冬暖的地区。
A field research was conducted at the garden of fruit institute of Maoming City,Guangdong Province in 2000 and 2001, in order to study the effects of chemical regulators,which mainly contain the potassium chiorate(KClO_3),used in different seasons on flowering and fruit quality of longan(Dimocxarpous Longanna).The experiments indicted that the effect of inducing flowering(%) were significantly difference in different seasons.The effect of inducing flowering(%)of the chemical regulators in dried season were better than that in wetness season.The off-season longan fruit quality is different from the usual harvest fruit.An improvement in fruit quality was observed in fruit harvesting in later spring and early summer.Bigger fruit weight,higher ration of eatable part, less weight of seeds pit and lower acid degree were observed in later spring and early summer longan fruit.It suggest that using the chemical regulators in early autumn and harvesting fruit in later spring or early summer be suited to the off-season longan fruit production in the research region.
出处
《生态科学》
CSCD
2002年第3期220-222,共3页
Ecological Science
基金
广东省科技计划重大专项(A20406)
茂名市科技计划项目(1994-02)资助项目
