冀西北地区优质甜玉米品种的评价

目的]为甜玉米新品种在冀西北地区推广应用提供科学依据。方法]综合分析05CTB787、05TB2595、03TB81、中甜10号4个甜玉米新品种的主要性状,并与冀西北地区重点推广应用的超甜1825、超甜1822进行比较。结果]03TB81属中晚熟品种,果穗性状最好,产量较高,食用品质中等。05CTB787属中早熟品种,果穗性状较好,产量中等,食用品质较好,抗病性较差。05TB2595属中熟品种,果穗性状中等,产量偏低,食用品质好。中甜10号属中晚熟品种,果穗性状中等,产量最高,食用品质较差,抗病性较差。6个甜玉米品种食用品质总分在78~86分,均达二级标准,05TB2595、超甜1825接近一级标准。结论]参试的4个甜玉米新品种均适宜在冀西北地区推广种植。

Evaluation on High-quality Sweet Corn Varieties in Northwest Region of Hebei Province

Objective] The aim was to provide the scientific basis for popularization and application of the new varieties of sweet corn in northwest region of Hebei province.Method] A comprehensive analysis was made on the major traits of 4 new varieties of sweet corn including 05CTB787,05TB2595,03TB81 and Zhongtian 10,which were compared with Chaotian 1825 and Chaotian 1822 that emphatically popularized and applied in Northwest Hebei region.Result] 03TB81 belonged to middle-late mature variety with the best ear characters,high yield and medium edible quality.05CTB787 belonged to middle-early mature cultivar with a good ear characters,medium yield and better edible quality and but inferior disease resistances.05TB2595 belonged to mid-maturity cultivar with a medium ear characters,lower yield and good edible quality.The Zhongtian 10 belonged to middle-late mature variety with medium ear characters,the highest yield,the worse edible quality and inferior disease resistances.The total scores of edible quality for six sweet corn varieties were between 78-86 scores,all were up to Class 2 standard,05TB2595 and Chaotian 1825 were approached to Class 1 standard.Conclusion] The tested 4 new varieties of sweet corn were all suitable for popularization and planting in northwest region of Hebei province.