3个不同香蕉抗病品种（系）的农艺性状及产量初步比较

香蕉枯萎病是引起香蕉产业全球毁灭性的病害,目前尚未有有效、彻底的根治方法,培育抗病品种是防治枯萎病的重要措施之一。本研究对3个香蕉抗病新品种（系）进行比较试验,调查了其生物学特性、农艺性状、产量及发病率。结果表明,‘南天黄’和‘桂抗2号’之间差异不显著,与‘中蕉9号’差异显著。‘南天黄’的生育期最短为383 d、‘桂抗2号’为393 d、‘中蕉9号’生育期最长,达447 d;‘南天黄’和‘桂抗2号’的农艺性状差异不显著,株型较矮,平均假茎高度分别为285 cm和298 cm,‘中蕉9号’假茎高平均为340 cm;‘南天黄’和‘桂抗2号’的果指数为21个左右,果型类似‘巴西蕉’且大小适中,‘中蕉9号’果指数为16个,果型直、大;‘中蕉9号’产量最高,平均单穗重24.9 kg,‘南天黄’株单穗重接近‘桂抗2号’,分别为23.5 kg和23.2 kg;试验中,‘南天黄’没有发病,发病率为0,‘桂抗2号’发病率为0.6%,‘中蕉9号’发病率为4.7%。综上所述,‘南天黄’和‘桂抗2号’更适合作为抗病品种（系）,可进一步展开大面积示范工作。

Preliminary Comparing of Agronomic Traits and Yield Between Three Different Banana Disease-resistant Varieties

Fusarium wilt is a global destructive disease for banana production, which can’t be effectively controlled. Breeding resistant varieties is one of the important measures to control it. The author conducted a plot experiment for three banana resistant varieties on the biological characteristics, agronomic traits, yield and morbidity. There were no big differences between ‘Nantian Huang’ and ‘Guikang 2’ varieties, but there were significant differences between ‘Zhongjiao 9’ and others. The growth period for ‘Nantian Huang’ and ‘Guikang 2’ was 383 and 393 days, separately, but the growth period for ‘Zhongjiao 9’ was 447 days. The agronomic traits for ‘Nantian Huang’ and ‘Guikang 2’ were not different obviously, and the short stalk, banana pesudostem height for the two was 285 and 298 cm separately. The average banana pesudostem for ‘Zhongjiao 9’ was 340 cm. The fruit index for ‘Nantian Huang’ and ‘Guikang 2’ was 21, and the fruit shape was moderate, which was similar to that of Banana Brazil. The fruit index was 16 for ‘Zhongjiao 9’, and the fruit shape was straighter and larger. The yield for ‘Zhongjia 9’ was the highest, which was 24.9 kg/bunch weight, and the yield for ‘Nantian Huang’ and ‘Guikang 2’ was 23.5 and 23.2 kg/bunch weight separately. The incidence rate of Fusarium wilt for ‘Nantian Huang’, ‘Guikang 2’ and ‘Zhongjiao 9’ was 0, 0.6% and 4.7% separately. In summary, ‘Nantian Huang’ and ‘Guikang 2’ are more suitable as Banana Fusarium wilt disease-resistant varieties, and more suitable for large-scale demonstration work for the future.