蕉-蕉套种模式下三个香蕉品种的秋植试种比较试验

Comparative analysis of autumn banana cultivars planted under the inter-planting mode of banana-banana

【目的】为筛选出适合广西香蕉产区蕉—蕉套种模式下秋植的高产、适应性好的香蕉品种。【方法】对桂蕉6号、桂蕉1号和巴贝多三个香蕉品种进行种植观察,对各品种的株高、生育期、产量等农艺性状进行分析和比较。【结果】在蕉-蕉套种模式下,秋植的三个香蕉品种在营养生长阶段前期生长速度一致,后期巴贝多生长速度较桂蕉6号和桂蕉1号快;株高比较上,巴贝多<桂蕉6号<桂蕉1号,在茎基围上,巴贝多>桂蕉1号>桂蕉6号,巴贝多较桂蕉6号和桂蕉1号粗壮,说明巴贝多在抗风性能上具有一定的优势;巴贝多累计叶片数较桂蕉6号和桂蕉1号多1-2片叶;桂蕉6号生育期最短,桂蕉1号其次,巴贝多生育期最长,采收前3个月,桂蕉6号收获率比桂蕉1号高21.3%,比巴贝多高51.8%,桂蕉1号比巴贝多高30.5%;桂蕉6号折合产量为2 786.04kg/667m^2,巴贝多折合产量为2759.35kg/667m^2,桂蕉1号折合产量为2904.55kg/667m^2,三个品种的产量差异不显著。【结论】从抗风性能上来说,选择巴贝多较为合适;从生育期方面来说,选择桂蕉6号较为合适,从种植品种多样性上来说,3个品种均满足生产需要,都可种植。

[ Objective ]This experiment was carried out to determine suitable banana cuhivars with high yield and good adaptability for planting in autumn in Guangxi under the inter-planting mode of banana-banana. [ Method ]Three new potential banana cultivars were analyzed for their plant height, growth period and yield. The three cultivars are as foUows：Guijiao 6,Guijiao 1 and BBD. [ Result ]The results showed that： growth rate were the same during early growth stage, but BBD growed faster than Guijiao 6 and Guijiao 1; the plant height was BBD〈Guijiao 6 〈Guijiao 1 and the basal diameter of pseudo-stem was BBD 〉Guijiao 1 〉Guijiao 6. Those showed that the performance of the wind resistance of BBD was better than Guijiao 6 and Guijiao 1. The total number of leaves of BBD was 1-2 more than Guijiao 6 and Guijiao 1. The growth period of Guijiao 6 was shortest and the growth period of BBD was longest. The yield rate of Guijiao 6 was 21.3% more than Guijiao 1 and 51.8% more than BBD during the first 3 months of harvest. The yield of Guijiao 6 was 2786.04 kg, the BBD was 2759.35.5 kg and the Guijiao 1 was 2904.55 kg per 667 m2, but the difference was not sig- nificant. [Conclusion] BBD had advantages in wind resistance compared to Guijiao 6 and Guijiao 1. In growth period perspective, Guijiao 6 is the best. For diversity of plant species, all three varieties can meet production needs.