PGPR对水稻塑盘旱育秧苗素质的影响  

PGPRs Effects on Rice Seedlings by Method of Raising Rice Seedling with Plastic Plate

作　　者：高君君[1] 康贻军[2] 程洁[1] 殷士学[1] 

机构地区：[1]扬州大学环境科学与工程学院,江苏扬州225127 [2]盐城师范学院生命科学与技术学院,江苏盐城224002

出　　处：《土壤》2012年第1期126-132,共7页Soils

基　　金：国家自然科学基金项目(41071177;41101235);农业部948项目(2006–G62);江苏省高校自然科学基金项目(10KJB210005)资助

摘　　要：采用水稻抛秧塑盘(434孔)旱育秧方法,研究3株PGPR(Bacillus sp.RBB1、Bacillus sp.WP8和Pseudomonassp.RBP1)对水稻旱育秧苗素质的作用,比较PGPR不同接种方式及施用壮秧剂对促生效果的差异,以及PGPR对土壤细菌群落结构的影响。结果表明:①RBP1和WP8可不同程度地促进秧苗生长,主要表现在促使秧苗矮壮、增加干物质积累;②PGPR拌土普遍优于浸种方式;③PGPR的有效性受是否与壮秧剂混用的影响,其次是接种方式;④地上部干物重对PGPR不同处理方式较为敏感,是评价促生效果的理想指标;⑤PGPR对土壤细菌群落结构有一定的影响,但不十分明显。通过研究,明确WP8和RBP1具有开发成水稻育秧专用微生物肥料的潜力。Thepurposeofthisstudyistodetermine （1） if 3 PGPRs, （Bacillus sp. RBB 1 , Bacillus sp. WP8 and Pseudomonas sp. RBP 1 ） are effective in promoting the growth of rice seedlings,（2）the differences between distinct applications of PGPR and the effects caused by appending fertilizer （Zhuangyangji, ＂ZYJ＂）, and （3）the influences of 3 PGPRs on the structure of the indigenous bacterial community. The results were as follows： （1）3 PGPRs especially for RBPI and WP8 could promote the growth of rice seedlings, which were expressed in stocky shape and increased biomass; （2）PGPR with soil drench was more efficient than seed soaking;（3）The effectiveness of PGPR was firstly dominated by the addition of ＂ZYJ＂, and then by different inoculation methods： （4）The above-ground dry biomass, rather than plant height, was more sensitive than other indexes, which could be used as a proper index to assess PGPR; （5）3 PGPRs caused modest changes in the structure of the indigenous bacterial community, implied that PGPR was an coo-friendly approach to rice production. 2 PGPRs （Bacillus sp. WP8 and Pseudomonas sp. RBPI） could significantly promote the growth of rice seedlings, which implied that they have potency for microorganisms-fertilizer development.

关 键 词：植物根际促生菌 水稻 塑盘旱育秧 

分 类 号：Q939.96[生物学—微生物学]