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八倍体小黑麦与普通小麦杂交,后代可以出现亲本类型八倍体小黑麦、普通小麦和普通小麦附加黑麦染色体异附加系与异代换系,对改进八倍体小黑麦的株高、熟期、结实率、籽粒饱满度有一定的效果,也可以选育抗病、耐旱较亲本增产的普通小麦新品种。细胞学观察结果:F_1染色体基本型为21_Ⅱ+7_Ⅰ,F_2染色体数变动在42～56之间,其染色体组合多为21_Ⅱ+3_Ⅰ、21_Ⅱ+4_Ⅰ,减数分裂行为不正常,F_3—F_5获得一些2n=21_Ⅱ、2n=28_Ⅱ、2n=21Ⅰ+1Ⅰ类型。利用八倍体小黑麦与普通小麦杂交是选育八倍体小黑麦,普通小麦新品种途径之一。
Tachyplenium triticale and common wheat cross, offspring can occur octoploid triticale, common wheat and common wheat additional rye chromosome addition and substitution lines, to improve the octagonal triticale Plant height, maturity, seed setting rate, fullness of grain have a certain effect, you can also choose disease-resistant, drought-resistant than normal parent wheat yield new varieties of common wheat. The results of cytology showed that the basic type of chromosome F_1 was 21_Ⅱ + 7_Ⅰ, the number of chromosomes of F_2 varied from 42 to 56, the chromosome combinations were mostly 21_Ⅱ + 3_Ⅰ, 21_Ⅱ + 4_Ⅰ, meiosis was not normal, and F_3-F_5 2n = 21_Ⅱ, 2n = 28_Ⅱ, 2n = 21Ⅰ + 1Ⅰ type. It is one of the ways to breed octloidy triticale and common wheat new variety by crossing octagonal triticale with common wheat.