10份玉米品种在喀麦隆的适应性研究

为探讨我国不同玉米品种在喀麦隆的适应性,以来自中国和喀麦隆的各5个玉米品种为试验材料,在中国援喀麦隆农业技术示范中心考察不同品种的生育期、农艺性状、田间发病情况和产量。结果表明,我国玉米品种生育期为92~94d,喀麦隆品种为110~112d;中国玉米品种株型为半紧凑或紧凑型,整齐度较好,喀麦隆品种均为平展型,整齐度一般;喀麦隆品种的株高和穗位高显著高于中国品种;10个玉米品种均有不同程度的病虫害发生。中国玉米穗行数和行粒数整体高于喀麦隆品种,百粒重则低于喀麦隆品种。喀麦隆品种CHL 103和CMS 9015、中国品种鄂玉30和华盛2000的产量在9.5t/hm²以上,表现出较好的丰产、抗逆性。

Adaptability of Ten Maize Varieties in Cameroon

This paper aimed at probing the adaptability of different maize varieties of China in Cameroon. Using ten maize varieties from China and Cameroon as materials, the growth period, agronomic traits, field incidence and yield of different varieties were measured at the China-Aided Cameroon Agricultural Technology Demonstration Center. The results showed that the growth period of Chinese varieties was 92-94 days, and that of Cameroon varieties was 110-112 days. The plant types of Chinese maize varieties were semi-compact or compact, with good regularity, Cameroon varieties were all flat and general regularity. The plant height and ear height of Cameroon varieties were significantly higher than those of Chinese varieties. Pests and diseases affected each of the ten maize cultivars differently. Chinese maize varieties had more rows and grains per ear than that of Cameroon maize varieties overall, and their 100-grain weight was lower. Cameroon types CHL 103 and CMS 9015, as well as Chinese variety Eyu 30 and Huasheng 2000, all yielded more than 9.5t/ha, indicating higher yield and resistance.