香梨花器特征及花粉生活力研究初报  

Study on the Floral Characteristics and Pollen Activity of Xiangli (Pyrus bretschneideri Rehd)

作　　者：何天明[1] 张琦[1] 程奇[1] 

机构地区：[1]塔里木农垦大学植物科技学院,新疆阿拉尔843300

出　　处：《新疆农业大学学报》2000年第3期35-38,共4页Journal of Xinjiang Agricultural University

摘　　要：在观察香梨的花器特征的基础上 ,对花粉量、花粉生活力及花粉萌芽力进行了综合研究。结果表明 :香梨为完全花 ,伞房花序 ,花冠轮生辐射对称 ,雄蕊 16～ 30枚 ,柱头多为 5枚 ,极少数为 6枚。顶花芽侧花败育现象普遍。花药花粉量达 4 0 0 0粒左右 ,花粉活力百分率在 75%以上 ,新鲜花粉发芽率达 80 % 。Main floral characteristics of Xiangli (Pyrus bretschneideri Rehd) were observed and pollen activity was synthetically studied in the paper.The results were as follow:complete flower,corymb inflorescens,imferior ovary,rotate corolla,androecium with 16～30 stamens,compound pistil with 5～6 stigmas;Abortion of lateral flower in terminal flower bud was common.Pollen grain mass was about 4000 in each anther,pollen activity was over 70%,fresh pollen germination rate reached 80%.The results were very useful for hybrid breeding,haploid breeding and productive practise of Xiangli.

关 键 词：梨 香梨 花 花粉 花器特征 花粉活力 

分 类 号：S661.201[农业科学—果树学]