河南省中低产田玉米新品种适应性筛选研究

Study on Adaptability of New Maize Varieties in Mid-low-yielding Fields of Henan Province

对河南省中低产田区进行玉米新品种适应性筛选试验,综合产量、农艺性状和抗逆性等方面分析,结果表明:郑单136、先玉335、中科11和浚单20等品种,产量分别比对照郑单958增加12.8%、12.5%、5.0%、4.9%,差异显著,且表现出适应性好、抗逆性强、农艺性状优良等特点,可在本地区推广种植,其他品种有待于进一步试验观察。

The adaptability of some new maize varieties in the mid-low-yielding fields of Henan province was tested,and these maize varieties were screened according to their yield,agronomic characters and resistibility.The main results were as follows：in comparison with CK variety Zhengdan 958,the yield of Zhengdan 136,Xianyu 335,Zhongke 11 and Xundan 20 was increased by 12.8%,12.5%,5.0% and 4.9% respectively,the yield difference was obvious,and the adaptability,resistibility and agronomic characters of these four varieties were good,so they could be planted in the area,while the others should be observed in further tests.