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为了合理利用小麦育种资源,对24份绵阳系列小麦品种(系)的产量和品质等14个性状进行分析。结果表明,产量变幅为4524.0~6002.55 kg/hm2,有效穗变幅为282.6万个/hm2~391.65万个/hm2,穗粒数变幅为36.6~50.7粒,千粒重变幅为38.05~50.83 g,容重变幅为716~822 g/L,籽粒蛋白质含量变幅为12.54%~16.33%,降落值变幅为105~365 s,湿面筋变幅为23.10%~37.03%,沉降值变幅为25.0~48.5 m L,稳定时间变幅为1.1~10.4 min,软化度变幅为63~201 BU,最大抗延阻力变幅为93~1000 BU,延伸性变幅为11.8~211.5 mm,曲线面积变幅为28.0~226.8 cm2,这14个性状存在丰富的变异类型。相关分析表明,千粒重与产量,籽粒蛋白质与湿面筋、沉降值和面积,降落值与软化度,沉降值与稳定时间、软化度、最大抗延阻力和面积,稳定时间与软化度、最大抗延阻力和面积,软化度与最大抗延阻力和面积,最大抗延阻力与面积呈显著或极显著相关,而穗粒数与有效穗,容重与最大抗延阻力和面积呈极显著负相关。供试材料从产量和品质性状可被聚为3类,第Ⅰ1、Ⅰ2、Ⅰ4类育种时可以作为高产材料加以应用,第Ⅱ类和第Ⅲ类育种时作为品质育种材料加以应用。
In order to make rational use of wheat breeding resources, 14 traits such as yield and quality of 24 Mianyang wheat cultivars (lines) were analyzed. The results showed that the yield amplitude ranged from 4524.0 to 6002.55 kg / hm2, the effective panicle varied from 2.286 million / hm2 to 3.9165 million / hm2, the kernel grain number ranged from 36.6 to 50.7 grains, and the grain weight variation ranged from 38.05 to 50.83 g , Bulk density ranged from 716 to 822 g / L, grain protein content ranged from 12.54% to 16.33%, ranged from 105 to 365 s, and wet gluten ranged from 23.10% to 37.03% 25.0 ~ 48.5 m L, the stable time amplitude is 1.1 ~ 10.4 min, the softening degree is 63 ~ 201 BU, the maximum resistance is 93 ~ 1000 BU, and the extensibility is 11.8 ~ 211.5 mm. The curve area The amplitude ranged from 28.0 to 226.8 cm2. There were abundant types of variation in these 14 traits. Correlation analysis showed that grain weight and yield, grain protein and wet gluten, sedimentation value and area, falling and softening, sedimentation value and stability time, softening degree, maximum resistance and area, stability time and softening degree, Resistance and area, softening degree were significantly or very significantly correlated with maximum resistance to resistance and area, maximum resistance to resistance and area, while there was a significant negative correlation between grain number and effective panicle weight, maximum resistance to resistance and area. The tested materials could be clustered into three types from the yield and quality traits. The varieties Ⅰ1, Ⅰ2 and Ⅰ4 could be used as high-yielding materials for breeding and the varieties Ⅱ and Ⅲ for breeding as quality breeding materials.