浙江农业学报

• 环境科学 • 上一篇    下一篇

不同椰糠配比对巴西蕉生长的影响

  

  1. (中国热带农业科学院 海口实验站,海南 海口 570102)
  • 出版日期:2016-05-25 发布日期:2016-05-19

Effects of different coconut coir ratios on growth of Brazil banana

  1. (Haikou Experimental Station, Chinese Academy of Tropical Agricultural Sciences, Haikou 570102, China)
  • Online:2016-05-25 Published:2016-05-19

摘要: 以巴西蕉二级组培苗为供试材料,采用盆栽实验,对不同椰糠配比条件下巴西蕉组培苗的生长情况进行研究。结果表明,在红壤土中加入一定比例的椰糠能够明显改善培养基质的理化性质,提高组培苗的生长效率;椰糠比例较高的基质配比,其组培苗叶片光合效率、株高、根长、根表面积、根系投影面积、根体积、总根尖数、分枝和交叉数更优。综合比较4种培养基质对巴西蕉组培苗的生长效果,当椰糠与红壤土体积比为1∶1时,组培苗的农艺性状和光合效率最优,是巴西蕉组培苗生长的最佳基质配比。

关键词: 椰糠, 组培苗, 农艺性状, 光合效率

Abstract: A pot experiment was conducted to provide theoretical and practical basis for the large scale application of different ratios of coconut coir and red soil on growth of Brazil banana plantlets. It was shown that application of certain proportion of coconut coir into red soil could significantly improve physical and chemical properties of culture medium and improve the growth of banana plantlets. Application of high proportion of coconut coir into red soil could significantly improve the photosynthetic efficiency, plant height, root length, root surface area, root projection area, root volume, total root tip, branching and crossing numbers. After comprehensive evaluation of agronomic traits and photosynthetic efficiency among 4 culture media, 1∶1 (coconut coir: red soil) volume ratio was found the best for Brazil banana plantlets growth.

Key words: coconut coir, tissue culture seedling, agronomic traits, photosynthetic efficiency