Relationship between survival rates of associative nitrogen-fixers on roots and yield response of plants to inoculation

: The population dynamics of associative nitrogen‐fixers Azospirillum lipoferum 137, Arthrobacter mysorens 7, Flavobacterium sp. L30 and phosphate‐solubilizing strain Agrobacterium radiobacter 10 in soil and the rhizoplane of inoculated plants was studied in pot and field experiments. All of the pre...

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Published inFEMS microbiology ecology Vol. 17; no. 3; pp. 187 - 196
Main Authors Belimov, A.A. (Research Inst. for Agricultural Microbiology, Saint Petersburg (Russian federation)), Kunakova, A.M, Vasilyeva, N.D, Gruzdeva, E.V, Vorobiev, N.I, Kojemiakov, A.P, Khamova, O.F, Postavskaya, S.M, Sokova, S.A
Format Journal Article
LanguageEnglish
Russian
Published Oxford, UK Blackwell Publishing Ltd 01.07.1995
Blackwell
Subjects
AVENA SATIVA
Azospirillum
BACTERIA FIJADORA DEL NITROGENO
BACTERIE FIXATRICE DE L'AZOTE
Biopreparation
BRASSICA NAPUS
HORDEUM
Inoculation
LYCOPERSICON ESCULENTUM
MEDICAGO SATIVA
NITROGEN FIXING BACTERIA
PLANT RESPONSE
Plant‐bacteria interaction
RACINE
RAICES
RENDEMENT
RENDIMIENTO
REPONSE DE LA PLANTE
RESPUESTA DE LA PLANTA
Rhizoplane colonization
ROOTS
TRITICUM
YIELDS
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Summary:: The population dynamics of associative nitrogen‐fixers Azospirillum lipoferum 137, Arthrobacter mysorens 7, Flavobacterium sp. L30 and phosphate‐solubilizing strain Agrobacterium radiobacter 10 in soil and the rhizoplane of inoculated plants was studied in pot and field experiments. All of the present strains were able to actively colonize the rhizoplane of barley, wheat, oat, tomatoes, rape, and alfalfa. For the most part the population size and dynamics of introduced bacteria depended only slightly on the plant genotype and soil conditions. The overall pictures of survival of the strains in soil and on plant roots were similar. The reliable effect of inoculation on plants was observed only in individual cases. No correlation was established between survival of introduced bacteria and their effect on plant development. It was concluded that the influence of plants on survival of bacteria was not specific. In contrast, the plant response to inoculation was conditioned to a greater extent by the plant genotype.
Bibliography:P34
9505707
ISSN:0168-6496
1574-6941
DOI:10.1111/j.1574-6941.1995.tb00142.x