IMPROVEMENT OF RESPONSE TO LOW WATER AVAILABILITYIN MAIZE PLANTS INOCULATED WITH SELECTEDRHIZOSPHERIC MICROBIAL CONSORTIAUNDER DIFFERENT IRRIGATION REGIMES

EQA

Eligio Malus๠ Laura Bardi¹  Giacomo Sala¹  Walter Chitarra² 

[1] Agricultural Research Council, Research Centre for the Soil-Plant System, Turin;Department of Arboriculture and Pomology, University of Turin, Grugliasco;

关键词: soil;    plant growth promoting rhizobacteria;    mycorrhiza;    maize;    drought;   

DOI  :  10.6092/issn.2281-4485/4209

来源: DOAJ

【 摘 要 】

Low water availability for agriculture is a rising problem in temperate countries. The effect of two different rhizospheric microbial consortia on the tolerance to water deficiency of maize was evaluated under controlled watering regimes. One consortium was a mixture of arbuscular mycorrhizal fungi and rhizospheric bacteria isolated under osmotic stress selective pressure; the other consortium was a commercial product. A higher tolerance of plants to water deficiency was observed when roots were inoculated with microbial consortia. Plant gas exchange parameters were positively affected by inoculation, and a improvements of the leaves mineral nutrients content and of the biomass yield were also recorded. The positive effect should be ascribed to an increased roots development more than to an increased uptake from extraradical mycorrhizal hyphae. The use of microbial inoculants appears to be a suitable practice to improve the crop performances under low water availability.

【 授权许可】

Unknown