冀西北地区优质甜玉米品种的评价

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

[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。

[ 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 popalrized and applied in Northwest Hebei region. [Result] 03T1381 belonged to middle-late mature variety with the best ear characters, high yield and medium edible quality. 05C3B787 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-matttrity 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.