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试验将16个软质、白粒、冬性的(简写为SWW)密穗小麦多系品种的平均籽粒产量和稳定性参数与美国西北部7个重要的SWW品种进行了比较。经交叉试验表明,在112个对比中,有87个多系品种的平均籽粒产量与多系品种不相上下,甚或高于或等于个别纯系品种。7个多系品种的平均籽粒产量等于或高于所有的7个纯系品种的平均籽粒产量。多系品种与纯系品种的产量稳定性参数相似。多系品种Crew高产性特别稳定。多系品种可用于持久抗条锈病的危害,而且可使美国西北部密穗小麦稳产高产。
The average grain yield and stability parameters of 16 soft, white and winter (abbreviated as SWW), multi-line wheat varieties were compared with those of 7 important SWW varieties in Northwest USA. Cross-tests showed that in 112 comparisons, the average grain yield of 87 cross lines was comparable to or even higher than that of multi-line varieties. The average grain yield for the seven multi-line varieties was equal to or higher than the average grain yield for all seven pure lines. Yield stability parameters of multi-line and pure line were similar. Multi-line varieties Crew high yield is particularly stable. Multi-line varieties can be used for the long-term resistance to stripe rust, but also make the United States northwest of the dense-headed wheat stable and high yield.