银杏种子特性的研究  

Study on the Characteristic of Maidenhair Seed

作　　者：李家玉[1] 齐之尧[1] 

机构地区：[1]天津农学院,天津市300381

出　　处：《种子》1996年第5期15-17,共3页Seed

摘　　要：银杏种子的特性：1．由有鞭毛的精子与裸露的胚珠内的卵结合成合子，是银杏区别于孢子植物和其它种子植物的特征。2．银杏种子具有生理后熟的特性。3．无胚率高并具多胚、多子叶的种子。4胚根的再生能力强。5．胚轴或幼茎的嫁接亲合力是个人满意的。掌握这些特性有助于银杏的繁殖与培育。The characteristic of maidenhair (Ginkgo biloba) seed: 1, Zygote have combined by the flagellated sperms and the ootid in exposed ovule, that is characteristic of maidenhair tree distinguish wwith spore plant and other higher plant. 2, Seed of maidenhair have specific property of physiological postmaturation. 3,The trait of high inembryonate rate and have ploycotyledonous seed. 4, The regeneration capacity of embryonic root is strong. 5, The grafting affinity of plumular axis or caulicle is weel. This chara...

关 键 词：银杏种子 生理后熟 外种皮 肉质 胚珠 亲合力 幼茎 大孢子囊 心皮 多胚现象 种子植物 显花植物 

分 类 号：S664[农业科学—果树学]