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用花药培养选择具有高诱导率(a)和高分化率(b)的高花培效率(a×b)的八倍体小黑麦(2n=8x=56)和单倍体小黑麦(n=4x=28)是很有效的。八倍体小黑麦的花培效率同普通小麦一样,每百个花药可出2.5株绿苗。由八倍体小黑麦(A 类)花培所得的花粉植株(B 类)再进行一次花培,在所获得的 C 类植株中就能选出花培效率达到八倍体小黑麦水平的个体。说明高花培效率的特性可在“单倍体”水平上表达出来。因此,预测筛选出绿苗率比现有小麦、小黑麦显著较高的高花培效率的“单倍体”小黑麦无性系是可能的。这将使染色体人工重组技术成为可行。
Tricolor Triticale (2n = 8x = 56) and Haploid Triticale (Tachypleus tridentatus) with high rate of flower culture (a × b) with high induction rate n = 4x = 28) is very effective. Octapetous triticale has the same flower-cultivation efficiency as common wheat, with 2.5 green plants per 100 anthers. Pollen plants (B type) obtained from the flower culture of octoploid tritium (A type) were subjected to another flower culture, and among the C plants obtained, the rate of flower culture to octapellow triticale Of individuals. Characterization of high flower culture efficiency can be expressed at the “haploid” level. Therefore, it is possible to predict the “haploid” triticale clones that have been screened for a significantly higher greening rate than existing wheat and triticale. This will make chromosomal artificial recombination technology feasible.