不同基因型糯玉米品种在冀东地区的适应性

为确定不同基因性糯玉米品种在冀东地区生长的适应性和品质表现，实验研究了5个不同基因型糯玉米品种的生长动态并对其蛋白质含量进行了测定。结果表明：中糯301在冀东地区的生态适应性最强，主要表现在。叶面积较大，后期衰减幅度较小，次生根数多。干物质积累量大，穗部性状较其它品种要好，千粒重高，群体叶面积指数较大，产量最高。在5个糯玉米品种中，中糯301、中糯1号、中糯2号可作为鲜食玉米在本地区推广种植；紫糯玉米适应性最差，但其特有的颜色、香味而深受人们的喜爱，紫糯玉米蛋白质变化幅度较大，增长速度最快，其双穗率最高。故适于鲜食用，仍有推广价值。

Adaptability of Waxy Corn Varieties in the East Hebei Province

In order to determine the adaptability and quality expression of waxy corn in East Hebei Province, the growth trends and the change of grain protein content in 5 waxy corn cultivars were studied.The results indicated that Zhongnuo 301 had the best adaptability to the ecological conditions of the eastern parts of Hebei among the 5 waxy corn cultivars.The principal performances of Zhongnuo 301 were as follow:its leaf area, the dry matter of plant, the number of roots per plant and the 1000-grain yield were the highest among the 5 waxy corn cultivars; its leaf area was higher in the later period of development; its main characteristics of grain were better than those of the others.In the 5 waxy corn cultivars, the planting of Zhongnuo 301, Zhongnuo 1, Zhongnuo 2 would be popularized in the eastern parts of Hebei for the fresh food.Zinuo waxy had the worse adaptability, but because of its special color and perfume, higher protein content and the rate of double ears, it had the edible value, thus having the value of being popularized.