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通过对吉林省玉米地方种质资源的相关性状与营养成分的研究,分析了这些性状与营养成分之间的关系。结果表明:在各品质性状中,蛋白质和赖氨酸之间有极显著的正相关关系。而淀粉含量与蛋白质、赖氨酸间有极显著的负相关关系。黄色、硬粒型玉米的脂肪、蛋白质、赖氨酸含量要比白色、马齿型玉米的高,而白色、马齿型玉米的淀粉含量则较高;随着生育日数的增多,这些种质的淀粉含量提高,而脂肪含量和蛋白质含量降低,赖氨酸含量变化不大;出籽率在75.1%~80%的玉米地方种质,其淀粉含量较低,而脂肪、蛋白质、赖氨酸含量均较高;随着百粒重的增加,玉米地方种质的脂肪含量、蛋白质含量、赖氨酸含量都有所提高,而且百粒重和脂肪之间有显著的正相关。这些结果对吉林省开展品质育种具有较大的价值。
Through the study of the related traits and nutrients of maize germplasm resources in Jilin Province, the relationship between these traits and nutrient components was analyzed. The results showed that there was a significant positive correlation between protein and lysine among the quality traits. The starch content and protein, lysine have a very significant negative correlation between. The content of fat, protein and lysine in yellow and durum corn is higher than that in white and dent corn, while the starch content in white and dent corn is higher. With the increase of days of birth, these germplasm The content of starch and protein decreased but the contents of lysine did not change much. The local germplasm with low seed rate of 75.1% ~ 80% had lower starch content, while the contents of fat, protein, lysine The contents of fat, protein and lysine of local corn germplasm increased with the increase of 100-grain weight, and there was a significant positive correlation between 100-grain weight and fat. These results have great value for quality breeding in Jilin Province.