摘要
玉米不同密度下的子粒产量和品质的测定表明：不同种植密度直接影响了子粒产量和品质。密度与产量的关系为：Ｙ＝４１４２．７Ｘ－３１８．９Ｘ２；较大和较小的密度有利于玉米子拉脱水，使收获时含水量降低。在一定密度范围内，玉米子粒蛋白质、脂肪、淀粉的含量在不同成熟阶段及收获时均呈下降趋势，而超出这一范围，这些物质的含量有所提高。玉米子粒中蛋白质、淀粉及脂肪的低含量与高产密度相对应，但这些物质的高含量却不与较低产量的密度相对应。
The determin of yield and quality of maize kernels showed that the planting density affected the yiela and quality or maize. The relationship of planting density ana yield of maize was y=4142. 7X-318.9X2; Large or small planting density was good for maise kernel to dewater and had a relative smallpercentage of water in kernels at harvest the; In definite extent of planting density, the content Of protein, lipid and starch of maize reduced with the increasing of planting density at different maturity stages andharvest time. Out of the extent, the content of these substance enhanced. The lower content of protein, lipidand starch corresponded with the density of higher yield,but the high content of protein, lipid and starchdid not correspond with the density or low yield.
出处
《玉米科学》
CAS
CSCD
1996年第4期43-46,共4页
Journal of Maize Sciences
关键词
玉米
产量
品质
密度
Maize
Yield
Quality
Planting density
