一些难开花和不开花的甘蔗品种的开花诱导初步研究  

Preliminary Studies on Induction of Some Shy-& Non-flowering Sugarcane Varieties

作　　者：李奇伟[1] 唐明德 陈西文[1] 

机构地区：[1]轻工业部甘蔗糖业科学研究所,广州510316

出　　处：《甘蔗糖业》1994年第1期17-23,共7页Sugarcane and Canesugar

摘　　要：本试验于1992年在崖城（北纬18°27’）进行。采用6个在当地不开花和难开花的品种，主要结果如下：（1）所用品种（Co419，华南56－12、华南56－21，粤据59-95，粤糖57－423和Badila）全部抽穗开花；（2）降低夜温或（和）延长固定光照（12h25min）可提高孕穗率，抽穗率和提早粤糖57-423开花期；（3）9月6日以后的固定光照处理效果比9月6日以前的好；（4）崖城11月以后的光或室内夜温非常适合花芽分化的诱导。笔者认为，利用冬、春诱导来促进难开花和不开花品种开花是一种经济有效的办法。This photoperiod experiment was conducted in 1992 at Yacheng(18°27' N).The six non-& shy-flowering varieties were used. The major results were as follows: 1 )all six Yarieties(Co419, Huanan56/12, Huanan56/21, Yuetang59/65, Yuetang57/423 and Badila ) were ittduced to flower; 2 ) the reduced night temperature or/and longer period of constant daylength (12h25min ) treatment increased the percentage of booting and emergence, and advanced flowering time of Yuetang57/423; 3 ) the constant daylength (12h25min ) treatment had bettcr effect on booting and emergence after Sept. 6 than that before Sept. 6; 4 ) from Novembor,night temperature in the photoperiod house at Yacheng is optimum for induction of initiation. So, it was suggested that promoting flowering,in Shy-& non-flowering varieties by the winter-and spring induction is an economical and effective measure.

关 键 词：甘蔗 开花诱导 温度 光周期 

分 类 号：S566.103[农业科学—作物学]