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对2005-2010年广西玉米区域试验对照种桂单22号(CK1)、正大619(CK2)及49个推荐审定品种的产量、农艺性状、品质和抗性指标进行研究分析。结果表明:推荐审定玉米新品种在区域试验中的产量有较大的突破,多数品种表现中晚熟,高产高抗等性状选育仍有较大潜力,在大斑病、小斑病、锈病、茎腐病方面选育有所突破,而对早熟、耐密、耐旱、耐瘠、抗纹枯病及玉米螟的品种选育要引起足够地重视,也不应忽视对玉米容重性状的选择。提出广西玉米新品种的选育应把品种的丰产性和广适性放在首位,兼顾品种的生育期、容重、出籽率和脱水速率等性状指标。
The yield, agronomic traits, quality and resistance index of Guangxi maize regional trial CK2, CK2 and 49 recommended validation cultivars from 2005 to 2010 were studied. The results showed that there was a great breakthrough in the yield of new maize varieties tested in the regional trials. Most of the varieties still showed great potential for breeding in the fields of late maturity, high yield and high resistance. In terms of big spot disease, leaf spot, rust, Stalk rot has a breakthrough in breeding, and precocious, tolerant to dense, drought, barren, resistance to sheath blight and corn borer breed breeding to be given sufficient attention, nor should the weight of corn weight traits should not be ignored . It is suggested that breeding of new varieties of maize in Guangxi should give top priority to the high yield and adaptability of cultivars, taking into account the traits such as growth period, bulk density, seed-setting rate and dehydration rate.