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谷子感染粟瘟病后,体内还原糖及除氨基氮外各种形态氮的含量增高,糖氮代谢发生改变,糖氮比降低。同时代谢的分解过程相对增加,蔗糖与还原糖、蛋白氮与非蛋白氮比值分别降低66.4%和2.5%。抗病品种体内糖氮代谢旺盛,合成作用较强,特别是糖代谢差异很大。抗病品种毛谷和感病品种铁耙子相比,孕穗抽穗阶段可溶性糖含量高26.2%～53.8%。蔗糖含量高52.6%～198.0%,而还原糖含量却降低0.7%～13.5%.蔗糖与还原糖比值高76.3%～195.1%,糖氮比值高20%～45.6%,抗病高产品种长农1号各种形态的糖含量最高,孕穗抽穗阶段可溶性糖、蔗糖和还原糖分别比铁耙子高53.8%～113.5%、89.5%～333.0%和30.5%.蔗糖与还原糖和糖氮比值也比铁耙子高89.8%～231.8%和47.4%～115.6%。因此,培育抗病高产品种必须选育在一定的氮素代谢基础上,具有很高的糖代谢能力的品种。
After millet infected with blast, the content of reducing sugar and various forms of nitrogen in addition to amino nitrogen were increased, the metabolism of sugar and nitrogen was changed, and the ratio of sugar to nitrogen was decreased. At the same time, the decomposition process of metabolism was relatively increased. The ratio of sucrose to reducing sugar, protein nitrogen and non-protein nitrogen decreased by 66.4% and 2.5% respectively. Disease-resistant varieties of sugar and nitrogen metabolism in the body strong, strong synthetic role, especially in sugar metabolism vary greatly. The soluble sugar content of booting stage was 26.2% ~ 53.8% higher than that of the susceptible cultivar iron rake. Sucrose content was 52.6% ~ 198.0%, while reducing sugar content was reduced by 0.7% ~ 13.5% .The ratio of sucrose to reducing sugar was 76.3% ~ 195.1%, the ratio of sugar to nitrogen was 20% ~ 45.6% The content of sugar, sucrose and reducing sugar were 53.8% -113.5%, 89.5% -333.0% and 30.5% higher than that of iron rake at booting stage respectively.The ratio of sucrose, reducing sugar and sugar-nitrogen was also higher than iron Rake high 89.8% ~ 231.8% and 47.4% ~ 115.6%. Therefore, cultivating disease-resistant and high-yielding varieties must be bred in a certain amount of nitrogen metabolism, based on high glucose metabolism.