甜玉米与普通玉米生长发育特性的比较研究——Ⅱ、生长参数的差异分析

• 作 者: 孙政才 陈国平
• 机 构: 北京市农林科学院作物所,北京市农林科学院作物所
• 出 处: 北京农业科学
• 发表日期: 1989年05期
• 关键词: 玉米品种 生长发育特性 生长参数 玉米属 干物质生产 鲜果穗 单株叶面积 乳熟期 碳水化合物代谢 突变体

我们在前报中指出,与普通玉米相比,甜玉米种子营养贮量少,盾片碳水化合物代谢和利用上失凋,导致了其苗期生长较弱.而苗期生长势必将影响植株的进一步生长发育.另外,甜玉米属胚乳突变体,以采收高额、优质、整齐处于乳熟期的新鲜果穗为主产目的,籽粒生产力低,也必然对后期的干物质生产产生影响.为此,我们于1985～1986年对不同类型的甜玉米生长发育进程中的生长参数与普通玉米作了比较研究,以求获得一些关于甜玉米的规律性认识,为合理地运筹栽培措施,保证高产、优质地生产甜玉米提供理论依据.

In our previous report, we pointed out that compared with ordinary corn, there is less nutrition and nutrient reserves in sweet corn seeds and the loss of withered carbohydrate metabolism and utilization, resulting in weaker seedling growth, while seedling growth is bound to affect plant Further growth and development.In addition, sweet corn is an endosperm mutant, in order to harvest high, high-quality, neat earliest mature ears ear production purpose, low kernel productivity, but also inevitably affect the late dry matter production. In this paper, we compared the growth parameters of different types of sweet corn during 1985 ~ 1986 with those of normal corn in order to obtain some regularity knowledge about sweet corn, to ensure the high yield , To provide a good theoretical basis for the production of sweet corn.