摘要
以一品红＂金奖＂为试材,研究遮光处理下花芽分化的形态发育过程。结果表明：遮光处理24d后一品红开始进行花芽分化,整个花芽分化过程持续约38d,其花芽分化分为花芽未分化期、生长锥伸长期、花序原基和小花原基分化期、花器官分化期4个时期。植株的苞片数与花芽分化进程呈显著相关,苞片数为1~2片,茎尖生长锥处于伸长期;大苞片3~5片,小苞片2~4片,为花序原基和小花原基分化期;大苞片5~8片,小苞片3~5片,为花器官分化期。
The flower bud morpho-differentiation under shade of Euphorbiapulcherrimawas studied with the cultivars of‘Gold medal＇.The results showed that flower bud differentiation began at 24 days after shading,the process of flower bud differentiation lasted for about 38 days,it could be divided into four stages,i.e.Undifferentiation phase,apical elongation phase,inflorescence and small floral primordium differentiation phase,flower organ differentiation phase,bract number of the plant and flower bud differentiation process was significantly related.
出处
《北方园艺》
CAS
北大核心
2016年第5期73-76,共4页
Northern Horticulture
基金
广西自然科学基金资助项目(2014GXNSFAA118121)
广西教育厅高校科研资助项目(YB2014010)
广西大学大学生实验技能和科技创新能力训练基金资助项目(201410593185)
关键词
一品红
遮光
花芽分化
形态观察
Euphorbia pulcherrima
shade
flower bud differentiation
morphological observation
