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珍稀濒危植物沙冬青花生物学研究
方海涛;王黎元;张晓刚
1.内蒙古包头师范学院生命科学系;2.内蒙古包头师范学院外语系 内蒙古包头 014030;3.内蒙古包头 014030
摘要:
沙冬青蝶形花冠,柱头具指状突起,分长柱头和短柱头。群落花期约47 d,单花花期约7 d,分为露黄、微开、盛开、凋谢4个时期。TTC法测定4个时期花粉均具活力,可保持70 d左右,苯胺蓝测定柱头可受性3~4 d。沙冬青花一般在开花前一天就开始泌蜜,开花第2~3 d,分泌量达到高峰,花后4~5 d产蜜量减少直至停止,日泌蜜和散粉集中在10:00-14:00。沙冬青开花受环境的影响。
关键词:  濒危植物    沙冬青    花生物学
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