南方农业学报2013，Vol.44Issue(3)：397-402,6.DOI:10.3969/j:issn.2095-1191.2013.3.397
3株联合固氮菌对甘蔗的促生作用
Growth-promoting effect by inoculating 3 strains of associative nitrogen-fixing bacteria in sugarcane
摘要
Abstract
[Objective]The present study was conducted to investigate the growth-promoting effect of sugarcane plantlets by inoculating with three associative nitrogen-fixing bacteria strains.[Method]Eight treatments,viz.,control,3 single strain treatments (strains 11-31,07-98 and 08-200) and their 4 combination treatments were designed to investigate the effects of their inoculums on sugarcane cultivar ROC22 using pot test.The growth and physiological-biochemical characteristics of plants were assessed in 86 days after inoculation.[Result]Statistic analysis revealed that all of the 7 inoculate treatments resulted in significant increase in biomass,plant height,total nitrogen and phosphorus contents and root activity of sugarcane plants.The best promoting effect was showed by the treatment Ⅳ,compared with none inoculated control,its'biomass,plant height,and phosphorus content increased by 60.79％,25.23％ and 76.29％,and total nitrogen also increased 45.79％.[Conclusion]This study indicated that the 3 associative nitrogen-fixing bacteria strains can be used as potential inoculants of sugarcane,and different inoculated methods show significant differences on growth-promoting effect,which depends on species of nitrogen-fixing bacteria and combination methods.It will be significant for further studies on the applications of nitrogen-fixing bacteria as biofertilizer.关键词
联合固氮菌/甘蔗/促生效应/生理生化性状Key words
associative nitrogen-fixing bacteria / sugarcane / growth-promoting effect / physiological-biochemical characteristics分类
农业科技引用本文复制引用
王钱崧,史国英,苏利荣,杨丽涛,李杨瑞,胡春锦..3株联合固氮菌对甘蔗的促生作用[J].南方农业学报,2013,44(3):397-402,6.基金项目
National Natural Science Foundation of China (31171504,31101122) （31171504,31101122）
Guangxi Natural Science Foundation (2011GXNSFF018002,2011GXNSFA018076) （2011GXNSFF018002,2011GXNSFA018076）
The Scientific Research Found of Guangxi Academy of Agricultural Sciences (Guinongke 2012YT01,2013YT04) （Guinongke 2012YT01,2013YT04）
