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为了更好地利用四川省区试对照品种绵麦37,对绵麦37的9个农艺性状进行了分析研究。结果表明,绵麦37的产量变幅为4 513.35~5 652.75kg/hm2,有效穗变幅为291.75万~342.75万/hm2,最高苗变幅为460.35万~634.65万/hm2,基本苗变幅为191.55万~221.55万/hm2,穗粒数变幅为37.33~48.91粒,千粒重变幅为38.63~47.7g,株高变幅为73.67~93.2cm,成穗率变幅为37.47%~68.56%,生育期变幅为175~188d。除成穗率外,其余8个农艺性状的变异系数在10%以内。相关分析表明,有19对性状间是显著或极显著相关,有17对性状间是显著或极显著偏相关,9个农艺性状间存在复杂的相关关系。绵麦37的4个主成分的累计百分率达91.34%,其中产量因子的百分率最高(48.61%)。与产量关联系数最大的是千粒重,其次是穗粒数和成穗率,它们对绵麦37产量形成的影响最大。在育种中,绵麦37可以从千粒重和穗粒数方面加以利用。
In order to make better use of the wheat cultivars Mianmai 37 in Sichuan Province, 9 agronomic traits of Mianmai 37 were analyzed. The results showed that the yield range of Mianmai 37 was 4 513.35 ~ 5 652.75 kg / hm2, the effective panicle amplitude was 29175 ~ 3434700 / hm2, the maximum seedling amplitude was 4603500 ~ 6346500 / hm2, The average grain size was 37.33 ~ 48.91, the grain weight was 38.63 ~ 47.7g, the height was 73.67 ~ 93.2cm, the percentage of ear height was 37.47% ~ 68.56% , Growth period amplitude of 175 ~ 188d. In addition to the ear rate, the remaining eight agronomic traits coefficient of variation within 10%. Correlation analysis showed that there were 19 pairs of traits significant or highly significant correlation, 17 pairs of traits were significant or very significant partial correlation, nine agronomic traits there is a complex correlation between. The accumulative total percentage of 4 main components of Mianmai 37 reached 91.34%, among which the highest percentage of yield factors (48.61%). The highest correlation coefficient with grain yield was the 1000-grain weight, followed by the grains per spike and panicle yield, which had the most significant impact on the yield of wheat grain. In breeding, Mianmai 37 can be used in terms of 1000-grain weight and grains per spike.