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本文对9个两系杂交水稻组合在四川种植时的主要产量性状和米质性状进行了分析。结果表明,广占63S/R9348组合产量最高,33S/9311组合最低。Y58S类组合穗粒库容较大,每穗实粒数较多,是该类组合增产的主要原因。广占63S类组合每平米有效穗数最多,结实率较高。33S类组各主要产量性状优势不明显。Y58S/R9348组合达优质米3级,两系杂交稻组合在主要品质指标上均优于对照品种。
In this paper, the main yield traits and grain quality traits of nine two-line hybrid rice combinations in Sichuan were analyzed. The results showed that the highest accounted for 63S / R9348 combination of the highest yield, 33S / 9311 combination of the lowest. Y58S panicle grain size larger, more grains per panicle, is the main reason for the increase in yield of such combinations. Widely accounted for 63S combination of the largest number of effective panicles per square meter, high seed setting rate. The main yield traits of 33S group were not obvious. Y58S / R9348 combination of high-quality rice level 3, two-line hybrid rice combinations in the main quality indicators are better than the control varieties.