旺苍丘陵区新玉米品种抗旱性鉴定初报

The Prelimary Study on Drought Resistance of New Maize Varieties in Hilly Area of Wangcang County

为筛选抗旱玉米品种,进行了玉米新品种抗旱性评价试验。结果表明,德玉18和绵单118产量较高,比对照提高20.99%和15.95%;各品种综合抗旱系数与产量呈正相关(R^2=0.8599**);经综合评价得出,德玉18、绵单118、中玉335等3个玉米品种属高抗旱性品种,成单90、必胜6号和成单30属中抗旱性品种,高玉171和正田1号属不抗旱品种。

The drought resistance evaluation test was carried out in the hilly area of wangcanga county,seven new maize varieties wasintroduced.Compared with Chengdan30(CK),the yield of other varieites were increased except for Zhengtian NO.1,Deyu18andMiandanl18yield increased by20.99%and15.95%,respectively.The coefficient of drought-resistance of various varieties calculatedby membership function is positively correlated with yield(R2=0.8599**).Though omprehensive evaluation showed thatDeyu18,Miandanll8and Zhongyu335are supposed to be higher drought resistance varieties,the drought resistance of Chengdan90,Bisheng6and Chengdan30is medium,the other two varieties Gaoyul71and Zhengtian NO.1is poor in drought-resistant.