植物学通报2001，Vol.18Issue(3)：371-374,4.
四倍体大燕麦与六倍体裸燕麦的受精作用和胚胎发育
Fertilization and Embryo Development in Hybridization between Avena magna and Avena nuda
赵云云 1刘家熙 1杨才2
作者信息
- 1. 首都师范大学生物系
- 2. 河北省张家口坝下农科所
- 折叠
摘要
Abstract
Observations were made on the fertilization and early embryo development in intergeneric cross between Avena magna and Avena nuda. The pollen germination of Avena nada appeared to be normal on the stigma of Avena magna and the pollen tubes grew into the style and entered the embryo sacs. In 168 florets fixed after pollination, 2.38% had double fertilization and produced embryo and endosperm, but the endosperm development was slower than that of the embryo, 1.79% had only embryo and 1.19% had only endosperm. The frequency of fertilization and embryo formation were 5.36% and 4.17% respectively. Due to the lack of endosperm or its abnormal development and abortion, no viable seeds were poduced. Cytoembryological evidence was provided for crosses between Avena magna and Avena nuda.关键词
四倍体大燕麦/六倍体裸燕麦/远缘杂交/受精/胚胎发育分类
农业科技引用本文复制引用
赵云云,刘家熙,杨才..四倍体大燕麦与六倍体裸燕麦的受精作用和胚胎发育[J].植物学通报,2001,18(3):371-374,4.
