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选用普通玉米SC-704(对照)和3个不同株型高油玉米为试验材料,分别采用5种不同的种植密度,探讨群体密度对高油玉米品质的影响。研究结果表明,同一品种不同密度处理随密度的增加子粒含油率、蛋白质和淀粉含量呈下降趋势。高油115和高油298子粒含油率在授粉后20～30d达到最高,高油XY-1在授粉后50d达到最高;高油298和高油XY-1子粒蛋白质含量授粉后40d达到峰值,高油115子粒蛋白质含量成熟期蛋白质含量达到最大值。高油115和高油298子粒淀粉含量积累在授粉后40d,高油XY-1为授粉后50d。
The effects of population densities on the quality of high-oil corn were studied by using SC-704 (normal control) and three high-oil corn with different plant types as test materials and five different planting densities respectively. The results showed that with the increase of density, the seed oil content and the content of protein and starch in the same variety with different densities decreased. Oil content of high-oil 115 and high-oil 298 seeds reached the maximum 20 ~ 30 days after pollination, high oil XY-1 reached the highest 50 days after pollination; High oil 298 and high oil XY-1 protein content reached the peak 40 days after pollination Oil 115 Grain Protein Content The protein content reaches its maximum at maturity. The starch content of high oil 115 and high oil 298 seeds accumulated 40 days after pollination and high oil XY-1 was 50 days after pollination.