摘要
腊梅的花芽分化在腋芽上进行。整个分化过程要分为6个时期。春梢花芽较多,成花率高,分化始于5月下旬,10月中旬分化完成;夏、秋梢花芽少,成花率低,分化开始较晚,持续时间短。此外,温度及芽的外部形态特征与花芽分化进程具有一定的相关性,腊梅花芽分化的适宜温度为20℃～30℃,芽长和芽粗的增长变化可作为判断花芽分化各时期的参考指标。
The flower bud of Chimonanthus praecox differentiates in the axillary bud. The whole pro-cess of flower bud differentiation can be tentatively divided into six stages. Wintersweet flower bud differentiates from late May to middle October. Many flowers take form in spring shoots and a few in summer and autumn shoots. Flower bud differentiation correlates with temperature and the external character of the bud. The optimum temperature of the flower bud differentiation is 20℃～ 30℃ ;the length and width of the flowre bud are regarded as reference target at every stage.
出处
《河南农业大学学报》
CAS
CSCD
1992年第3期239-244,共6页
Journal of Henan Agricultural University
基金
河南省教委科学基金
关键词
腊梅
腋芽
花芽分化
Chimonanthus praecox
axillary bud
flower bud differentiation
