江南槐开花授粉特性的研究  

Study on Flowering and Pollination Characteristics of Cassia Sophera

作　　者：郭金丽[1] 田东方[1] 王伟[1] 郭娜[1] 

机构地区：[1]内蒙古农业大学,内蒙古呼和浩特010019

出　　处：《内蒙古农业科技》2012年第3期45-46,共2页Inner Mongolia Agricultural Science and Technology

摘　　要：文章对江南槐(Robinia hispida L.)的开花持续期、花器特征、花粉活力、结实率等进行了初步研究。结果表明:江南槐5月初进入花期,一直到8月下旬结束,花期长达100d左右;单个花序持续开放7～10d,单个花朵持续开放3～5d。江南槐树冠开花顺序为由中部开始,渐次向上部和下部发展;单个花序开放顺序由基部向顶端逐次开放。江南槐是两性花,雄蕊共10枚,为九连体一离体的二体雄蕊,雌蕊1枚,柱头被有白色绒毛,雄蕊先于雌蕊成熟。江南槐新鲜花粉活力最高为87%,而结实率为0。The flowering period,the characteristics of floral structure,pollen viability,fructification rate in Robinia hispida L. were studied in this article.The results were as follows：The blooming period was from early May to late August and lasted 100 days;Single inflorescence lasted 7-10 days and single flower lasted 3-5 days.Flowering sequence was from middle part to top and bottom part in a tree,and from bottom part to top part in a inflorescence.The flower was hermaphroditic flower with 10 stamens which included one part of 9 stamens and another part of 1 stamen and 1 pistil covered with white villuses;Stamens matured before pistil.Pollen viability was high as 87% but the rate of fruit setting was 0.

关 键 词：江南槐 开花规律 授粉结实特性 

分 类 号：S792.27[农业科学—林木遗传育种]