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为了解在黑龙江省小麦生产密度下5+10亚基与2+12亚基在超强筋小麦遗传背景下遗传效应的差异,2007~2008年将超强筋小麦品种小冰麦33(2*,7+8,2+12)和5+10亚基小冰麦33(2*,7+8,5+10)种植在黑龙江省农业科学院育种研究所的试验地内。试验设计采用对比排列,4次重复,小区面积为1.2×4.4 m2,密度为650株.m-2。两年的品质分析结果表明:5+10亚基的小冰麦33在蛋白质含量和干面筋含量上与小冰麦33基本相同,统计学上无显著差异;在面筋指数、形成时间、稳定时间、断裂时间、最大抗延阻力和拉伸面积上比2+12亚基的小冰麦33分别高2.4%(P=0.01)、67.3%(P<0.01)、99.8%(P<0.01)、102.6%(P<0.01)、17.0%(P=0.01)、11.9%(P=0.05);在湿面筋、吸水率和延伸性上分别低3.5%(P=0.12),0.5%(P=0.31)和6.3%(P=0.08)。以上研究结果表明,在黑龙江省小麦生产密度下(密度为650株.m-2),5+10亚基在超强筋小麦品种小冰麦33遗传背景下对多数品质指标均有较大的改善。
In order to understand the genetic effects of 5 + 10 subunits and 2 + 12 subunits under the glutenin wheat genetic background in wheat production density in Heilongjiang Province, from 2007 to 2008, super gluten wheat variety Xiaobingmai 33 (2 * , 7 + 8, 2 + 12) and 5 + 10 subunits Xiaobai 33 (2 *, 7 + 8, 5 + 10) were planted in the experimental site of Institute of Breeding, Heilongjiang Academy of Agricultural Sciences. The experimental design using contrast arrangement, four replications, the plot area of 1.2 × 4.4 m2, the density of 650 strains. M-2. The results of two-year quality analysis showed that the 5 + 10 subunits of Xiaobingmai33 were basically the same in protein content and dry gluten content as those of Xiaobingmai 33, and there was no significant difference between them. The gluten index, the formation time, the stabilization time (P <0.01), 67.3% (P <0.01), 99.8% (P <0.01) higher than that of the 2 + 12 subunit in the breaking time, the maximum resistance to resistance and the stretching area, respectively (P = 0.12), 0.5% (P = 0.31), P <0.01, P <0.01) ) And 6.3% (P = 0.08). The above results show that in the Heilongjiang Province wheat production density (density of 650 strains. M-2), 5 + 10 subunits super gluten wheat variety Xiaobingmai 33 genetic backgrounds for most of the quality indicators are larger improve.