高级检索
    邮件订阅 RSS

    桂系列大豆品种在粤北地区的生产性能综合评价

    Comprehensive Evaluation of Production Performance of Gui Series Soybean Varieties in Northern Guangdong Region

      摘要
    • 摘要:
      目的 优化粤北地区大豆种植结构，为粤北大豆品种选育及跨生态区引种提供科学依据。
      方法 以粤北主栽品种华夏10号为对照，系统评价9个来自广西的桂系列大豆品种在粤北地区的生产性能。通过测定株高、单株荚数、单株粒数、百粒质量、小区产量等8个关键农艺性状，结合变异系数、高稳系数（HSC）及主成分分析等多维度统计方法，综合评价各品种的产量潜力、稳定性及适应性。
      结果 相关性分析表明，单株粒数与产量呈显著正相关（r=0.73），单株荚数与单株粒数呈极显著正相关（r=0.92），而百粒质量与单株荚数、单株粒数均呈负相关。主成分分析提取的前4个主成分累计贡献率达94.89%，其中PC1方差贡献率为52.88%，在株高、主茎节数、单株荚数、单株粒数、百粒质量和产量上具有较高载荷，表征产量潜力；PC2方差贡献率为23.38%，主要反映分枝性状。产量分析显示，桂春205折合产量为3 065.15 kg/hm2，较对照增产11.45%，高稳系数为99.58%，排名第一；桂春206折合产量为2 915.15 kg/hm2，较对照增产6.00%，高稳系数为94.02%；桂夏7号折合产量为2 771.81 kg/hm2，与对照相当，增产0.79%，高稳系数为89.60%。
      结论 桂夏7号产量与对照品种华夏10号相当，且株型紧凑、底荚高度适中，适于机械化作业，综合表现优良，建议在粤北地区推广应用；桂春205和桂春206具有显著高产潜力和优异稳产性，适于在该地区扩大示范种植。

       

      Abstract:
      Objective This study aimed to optimize the soybean planting structure in northern Guangdong and provide scientific evidence for soybean breeding and cross-regional introduction through systematic field evaluation.
      Method Using the locally dominant cultivar 'Huaxia 10' as control, the production performance of nine Gui series soybean varieties from Guangxi was systematically evaluated in northern Guangdong. Eight key agronomic traits, including plant height, pods per plant, grains per plant, 100-seed weight, and plot yield, were measured. Comprehensive assessment of yield potential, stability, and adaptability was conducted using multiple analytical methods including coefficient of variation (CV), high-stability coefficient (HSC), and principal component analysis (PCA).
      Result Correlation analysis revealed a significant positive correlation between grains per plant and yield (r=0.73), and a very strong positive correlation between pods per plant and grains per plant (r=0.92), while 100-seed weight showed negative correlations with both pods per plant and grains per plant. Principal component analysis extracted four principal components with cumulative contribution rate reaching 94.89%. PC1 (52.88% variance contribution) represented yield potential with high loading on plant height, main stem nodes, pods per plant, grains per plant, 100-seed weight, and yield. PC2 (23.38% variance contribution) primarily reflected branching traits. Yield analysis demonstrated that 'Guichun 205' showed the highest yield (3 065.15 kg/hm2), with an 11.45% increase over the control and HSC of 99.58% (ranked first). 'Guichun 206' yielded 2915.15 kg/hm2 (6.00% increase) with HSC of 94.02%. 'Guixia 7' yielded 2 771.81 kg/hm2, compared to the control, with HSC of 89.60%.
      Conclusion 'Guixia 7', yielding 2 771.81 kg/hm2 (0.79% increase over control), combines compact plant architecture and suitable bottom pod height for mechanized operations, demonstrating comprehensive excellent performance and is recommended for promotion in northern Guangdong. 'Guichun 205' and 'Guichun 206' exhibit significant high-yield potential and outstanding yield stability, suitable for expanded demonstration planting in the region.

       

      • HTML全文
      • 参考文献(29)
      • 相关文章
      • 施引文献
    • 资源附件(0)
    返回
    邮件订阅 RSS