关键词: 家畜, 家畜, 早期胚胎, 性别选择

Abstract: In order to study the hereditary characters of the wheat K95016 which is a dwarf resource of the winter wheat. preliminary analysis on the wheat has been made in these years from 2003 to 2005. From the result of F1 that is achieved by genetically hybridizing K95016 (with its heigh of 50cm ) and seven other origins. (with its average height of 75cm), Dwarf genes of K95016 is recessive hereditary material. Through cross cut and reciprocal cross. The crossbred F1 is made by hybridizing its matriarchal origin which is the dwarf resource and its paternal origin with middle height characteristic of strong effective tillering, more ears. F1 possesses an advantage over other kinds is shown in the detailed research of its crossbred advantage of grain weight of plant.