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采用特矮大麦/早熟3号、特矮大麦/紫皮大麦、特矮大麦/91-6411、91-6411/早熟3号4个杂交组合的P_1、P_2、F_1、F_2、B_1、B_2世代,研究了大麦抗赤霉病性的遗传。结果表明,大麦抗赤霉病性表现为部分显性或超显性,细胞质作用不明显。在特矮大麦/早熟3号、特矮大麦/紫皮大麦和特矮大麦/91-6411中,共同亲本特矮大麦的感病性主要受一对隐性基因控制;在91-6411/早熟3号中,抗赤霉病性为数量性状,加性、显性和加性×加性互作效应均极显著。大麦的抗赤霉病性与株高存在极显著的正相关,但与抽穗期、单株穗数无显著相关。
The P_1, P_2, F_1, F_2, B_1 and B_2 generations of four crossbred combinations of special barley / early maturing 3, special barley / purple barley, special barley / 91-6411,91-6411 / The inheritance of barley resistance to barley was studied. The results showed that the resistance of barley to scab was partially dominant or over dominant, and the cytoplasm was not obvious. The susceptibility of common dwarf barley was controlled by a pair of recessive genes in the special barley / early maturing 3, the special barley / purple barley and the barley / 91-6411; in 91-6411 / precocious 3, the resistance to scab was quantitative trait, additive, dominance and additive × additive interaction effect were extremely significant. There was a significant positive correlation between the resistance to head blight of barley and plant height, but no significant correlation with heading date and panicles per plant.