| 摘要: |
| 选用4个恢复系、4个不育系及其相应的保持系配制了32个杂交组合、比较了不同胞质以及不同母本基因型和恢复系对杂种 F_1的几个主要性状的效应.结果表明、提莫菲维细胞质对 F_1的每穗粒数及每穗粒重有十分显著的影响,但对单株产量影响不显著。某些母本基因型与提莫菲维细胞质的相互作用可使 T 质杂种的单穗拉重、单株粒数、单株穗数、单株粒重显著优于 A 质杂种。不同母本基因型、不同恢复系对 F_1的千粒重、穗粒重、穗粒数、单株粒数、单株穗数、单株产量、株高均有显著影响,并且它们的互作对千粒重、穗柱重、单株粒数、单株产量、株高亦有显著影响。上述结果说明、只要亲本选配得当、可以充分发挥 T 型杂种小麦的杂种优势. |
| 关键词: 主要性状 基因型 恢复系 单株粒重 千粒重 细胞质 单株粒数 母本 杂种株 单株产量 |
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| THE EFFECT OF TIMOPHEEVII CYTOPLASM ON SEVERAL CHARACTERS OF HYBRID WHEAT |
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| Abstract: |
| Several characters of 32 hybrids wheat,including 16 hybrids with timopheevi cytoplasm and 16 with common wheat cytoplasm,were studied in 1981.The results showed that:It was significant for the effect of timopheevi cytoplasm on number of grains per spike,grains weight per spike of F1 hybrids,but not on plant yield.Oweing to the interaction between some female genotypes and timopheevi cytoplasm,CMS hybrids could be made superior over the nomal cytoplasm on grains weight per spike,number of grains per spike an... |
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