春性八倍体小黑麦的育种原理和方法,类似冬性八倍体小黑麦育种,均系六倍体普通小麦(体细胞染色体数为42个,性细胞染色体数为21个)与二倍体黑麦(体细胞染色体数为14个,性细胞染色体数7个)进行属间远缘杂交,经过秋水仙精加倍小麦—黑麦杂种染色体数,成为初级八倍体小黑麦原始材料(体细胞染色数为56个、性细胞染色体数21个),又经杂交选育而成。春性八倍体小黑麦,其亲本则来源于春小麦和春黑麦的属间远缘杂交,加倍春小麦—春黑麦第一代 Spring octoploid tritree breeding principles and methods, similar to the winter octoploid tritium breeding, are hexaploid common wheat (somatic chromosome number 42, the number of chromosome 21) Diploid rye (14 chromosomes of somatic cells and 7 of sex chromosomes) were crossed with each other. After colchicine plus doubling chromosome number of wheat-rye hybrids, they became primary octagonal triticale Materials (56 somatic cells and 21 chromosomal cells) were selected by cross breeding. Spring octoploid triticale, its parents are derived from spring wheat and spring rye intergeneric distant hybridization, double the spring wheat - the first generation of spring rye