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通过3个杂文组合、4个世代、1988～1990年3年试验结果数据,估算了蕃茄果实环裂性的遗传效应.表明控制蕃茄果实环裂的基因效应符合加性——显性遗传模型,杂种后代环裂性平均值以高环裂(不抗环裂)为超显性或介于双亲间偏于不抗环裂一边,环裂性的广义遗传力为64.6％.基因加性效应在不同品种组合间存在差异.环裂性与射裂性呈极显著的正相关;环裂性与耐压性、射裂性与耐压性分别是显著和极显著的负相关.故欲获得抗环裂、抗射裂、耐压的新品种,只需对其中一个性状进行直接选择,就能间接使其余两个性状相应得到改进,适于采用杂交、回交育种方法。
The genetic effect of tomato ring cracking was evaluated by the data of three essays, four generations and three years from 1988 to 1990. The results showed that the genetic effect of controlling tomato ring fission accorded with additive-dominance genetic model, The average value of the ring dehiscence of the offspring was high dominance (no resistance to cystic cleavage) or superfluous between the parents, but the generalized heritability of the ring cleavage was 64.6% There were significant differences among the different combinations. The relationship between ring-cracking and fission was significant and significant. The relationship between ring-cracking and pressure-resistance, and the relationship between spitting and pressure-resistance were significant and extremely significant negative correlations For the new varieties with ring, split, and anti-fission, and withstanding pressure, the direct selection of one of the traits can indirectly improve the other two traits accordingly, and is suitable for hybridization and backcross breeding methods.