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1997年对4份相对表现优异的经化学诱导产生的玉米无融合生殖系进行主要农艺性状配合力测定。结果表明,被测无融合生殖系的配合力对小区产量、穗长、穗粗、粒行数的表现有显著影响,但对百粒重、轴重的影响不显著。同时,它们与测验种配合力的互作对小区产量、穗长、穗粗也有显著影响。被测无融合生殖系各性状的一般配合力和特殊配合力效应表现不同。6075-24各性状的一般配合力效应最好。6052-18/丹340,6063-10/沈137,6068-20/沈137和6075-24/60394份测交种。小区产量特殊配合力效应值高,且实际产量显著优于对照种。认为:和用常规方法选育的玉米自交系一样,经化学诱导获得的玉米无融合生殖系,必须进行配合力测定才能确定其使用价值。
In 1997, the relative agronomic traits of four agronomic traits induced by chemical induction were determined. The results showed that the combining ability of tested apomictic germ lines had a significant effect on the yield, ear length, ear diameter and grain number of the plot, but had no significant effect on the 100-grain weight and the axle weight. At the same time, the interaction of their combining ability with the test species also had a significant impact on the yield, ear length and ear diameter of the plot. The general combining ability and the special combining ability of the characters of the tested apomictic germ line showed different effects. The general combining ability of 6075-24 had the best effect. 6052-18 / Dan 340, 6063-10 / Shen 137, 6068-20 / Shen 137 and 6075-24 / 60394. Community yield special combining ability effect value is high, and the actual yield is significantly better than the control. It is considered that, as with the maize inbred lines bred by conventional methods, the chemically induced maize apomictic line must be tested for its combining ability to determine its value.