Growth promotion of plants by plant growth-promoting rhizobacteria under greenhouse and two different field soil conditions
Growth promotion of plants by plant growth-promoting rhizobacteria under greenhouse and two different field soil conditions
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DOI：
10.1016/j.soilbio.2005.09.019
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发表时间：
2006-06-01
影响因子：
9.7
通讯作者：
Sahin, Fikrettin
中科院分区：
文献类型：
--
作者：
Cakmakci, Ramazan;Donmez, Figen;Sahin, Fikrettin
本研究以温室和田间甜菜为研究对象，在2种不同有机质土壤类型（含有机质2.4和15.9%，简称低有机质土壤和高有机质土壤）条件下，施用5种固氮菌和2种增磷菌，对比对照和施用矿质肥（N和P），研究甜菜种子接种情况。3株细菌溶解P；所有菌株均能固定N-2，并显著促进甜菜生长。在温室中，接种PGPR可使不同品种甜菜根重增加2.8 ~ 46.7%。在低有机质土壤和高有机质土壤中，接种细菌可使叶片、根和糖产量分别提高15.5 ~ 20.8%、12.3 ~ 16.1%和9.8 ~ 14.7%。植株的生长响应是可变的，取决于接种剂品系、土壤有机质含量、生育期、采收期和生长参数。在生长早期，PGPR的作用大于生长后期。有效的芽孢杆菌如OSU-142、RC07和M-13、多粘类芽孢杆菌RC05、恶臭假单胞菌RC06和荚膜红杆菌RC04可用于有机和可持续农业。(c) 2005 Elsevier Ltd版权所有。
This study was conducted with sugar beet in greenhouse and field at two soil type with different organic matter (containing 2.4 and 15.9% OM, referred as the low- and high-OM soil) conditions in order to investigate seed inoculation of sugar beet, with five N-2-fixing and two phosphate solubilizing bacteria in comparison to control and mineral fertilizers (N and P) application. Three bacterial strains dissolved P; all bacterial strains fixed N-2 and significantly increased growth of sugar beet. In the greenhouse, inoculations with PGPR increased sugar beet root weight by 2.8-46.7% depending on the species. Leaf, root and sugar yield were increased by the bacterial inoculation by 15.5-20.8, 12.3-16.1, and 9.8-14.7%, respectively, in the experiment of low- and high-OM soil. Plant growth responses were variable and dependent on the inoculants strain, soil organic matter content, growing stage, harvest date and growth parameter evaluated. The effect of PGPR was greater at early growth stages than at the later. Effective Bacillus species, such as OSU-142, RC07 and M-13, Paenibacillus polymyxa RC05, Pseudomonas putida RC06 and Rhodobacter capsulatus RC04 may be used in organic and sustainable agriculture. (c) 2005 Elsevier Ltd. All rights reserved.