不同椰糠配比对巴西蕉生长的影响  

Effects of different coconut coir ratios on growth of Brazil banana

作　　者：丁哲利[1] 王必尊[1] 金志强[1] 韩丽娜[1] 戴敏洁[1] 何应对[1] 

机构地区：[1]中国热带农业科学院海口实验站,海南海口570102

出　　处：《浙江农业学报》2016年第5期853-856,共4页Acta Agriculturae Zhejiangensis

基　　金：国家科技支撑计划课题(2014BAD16B01);科技部农业成果转化项目(2014GB2E200119)

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。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.

关 键 词：椰糠 组培苗 农艺性状 光合效率 

分 类 号：S147[农业科学—肥料学]