The contributions of plant and bacteria genotypes in the growth and nitrogen accumulation of inoculated alfalfa

Проворов, Н. А.; Saimnazarov, U. B.; Tanriverdiev, T. A.; Симаров, Б. В.

doi:10.1007/bf00010073

Cited by 7 publications

(2 citation statements)

References 9 publications

(16 reference statements)

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“…viceae strains is used for growth of shoot (grain) yield to a greater extent than for enrichment of plant biomass with nitrogen because N concentration in pea shoots (grain) was not changed significantly after inoculation (data not shown). Similar results were obtained previously during analysis of symbiotic efficiency of different alfalfa cultivars incoultated with effective R. meliloti strains (Provorov et al, 1994).…”

Section: Increase In the Pea Yield And N Accumulation After Inoculatisupporting

confidence: 78%

Selection of Rhizobium leguminosarum bv. viceae strains for inoculation of Pisum sativum L. cultivars: Analysis of symbiotic efficiency and nodulation competitiveness

Фесенко¹,

Проворов

Orlova³

et al. 1995

Plant Soil

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From an analysis of 481 Rhizobium leguminosarum bv. viceae strains with 7 pea cultivars in pot and field experiments, we demonstrated that effective strains could be isolated from a rich medium-acid grey forest soil of the Or61 area (Central region of the European part of Russia) but not from a poor acid podzolic soil of the St. Petersburg area (North-West Russia). The proportion of the isolates significantly increasing N accumulation in pea plants (10.2%) is higher than that of strains increasing the shoot dry mass (4.6%) in the pot experiments. The mean values of the increase for N accumulation (33.8%) upon inoculation are also higher than for shoot mass (27.0%) in these experiments. N accumulation in the inoculated pea plants in the pot experiments was significantly correlated with seed yield and seed N accumulation in field experiments, while for shoot dry mass these correlations were either weak or not significant. Two-factor analysis of variance demonstrated that the contribution of plant cultivars to the variation of the major symbiotic efficiency parameters is higher (30.8-31.6%) and contributions of cultivar-strain specificity is lower (5.4-8.8%) than the contributions of strain genotypes (13.4-14.9%). We identified an ineffective R. leguminosarum bv. viceae strain 50 which can be used as a tester for assessing the nodulation competitiveness of the effective strains by an indirect method (analysis of dry mass and N accumulation in pea plants inoculated with the mixture of the tested effective strains and the tester strain). The relative competitive ability (RCA) determined by this method was 75.7-82.8% for strain 52 but only 10.5-13.8% for strain 250a; this difference was confirmed by a direct method (use of the streptomycin-resistant mutants). Results of screening of the diverse collection of 53 effective R. leguminosarum bv. viceae strains by the indirect method permits us to divide them into 3 groups (32 high-competitive, 10 medium-competitive and 11 low-competitive strains) but reveals no correlation between the competitiveness and symbiotic efficiency. N accumulation in the pea shoots is demonstrated to be a much more suitable criterion than the shoot mass for selection either of the highly-effective or of highly-competitive (by the indirect estimation) R. leguminosarum by. viceae strains in the pot experiments.

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Section: Increase In the Pea Yield And N Accumulation After Inoculatisupporting

confidence: 78%

Selection of Rhizobium leguminosarum bv. viceae strains for inoculation of Pisum sativum L. cultivars: Analysis of symbiotic efficiency and nodulation competitiveness

Фесенко¹,

Проворов

Orlova³

et al. 1995

Plant Soil

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“…However, a higher number of nodules does not necessarily correspond to a higher yield of plant dry matter, as demonstrated by SLBR 2.1 alone or in co-inoculation with CIAT 899 strain. This fact indicates that the presence of great number of nodules not always is guarantee of effectiveness of an inoculum (Provorov et al, 1994) and that the compatibility between strains in mix inoculants is an important factor to be considered (Brown & Ahmad, 1996).…”

Section: Resultsmentioning

confidence: 99%

Rhizobium strains competitiveness on bean nodulation in Cerrado soils

Raposeiras

Marriel

Muzzi

et al. 2006

Pesq. agropec. bras.

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-The objective of this work was to identify the most competitive and effective Rhizobium strains in order to increase common bean yield by nitrogen fixation as alternative or complementation to the nitrogen fertilization. Competitiveness tests were lead in axenic conditions, in Cerrado soil pots and in three field experiments, with native Rhizobium strains that were previously identified, according to their effectiveness and genetic variability. The identification of strains in nodules was performed using serological tests (axenic conditions) -agglutination and enzyme linked immunosorbent (Elisa) assays -and random amplified polymorfic DNA (RAPD) (Cerrado soil). Plant yield was determined using the dry weight (greenhouse conditions), total N and grain yield (field experiments). Among the analyzed Rhizobium strains, native strain SLA 2.2 and commercial strain CIAT 899 were the dominant nodules in plants of the most productive plots, presenting yield productivity similar or higher to those obtained in treatments where 20 kg ha -1 of N were applied.Index terms: Phaseolus vulgaris, nodule occupancy, Elisa, RAPD. Capacidade competitiva de estirpes de Rhizobium na nodulação do feijoeiro em solos de CerradoResumo -O objetivo deste trabalho foi identificar as estirpes de Rhizobium mais efetivas e competitivas, a fim de maximizar a produtividade do feijoeiro por meio da fixação de nitrogênio, como alternativa à adubação nitrogenada. Foram conduzidos testes de competitividade em condições axênicas, em vasos com solo do Cerrado e em três experimentos de campo, com estirpes de Rhizobium nativas, previamente selecionadas quanto à efetividade e à variabilidade genética. A identificação das estirpes nos nódulos foi efetuada por meio das técnicas de aglutinação e ensaio imunoabsorvente de ligação de enzimas (Elisa), em condições de casa de vegetação, e pela técnica de DNA polimórfico amplificado ao acaso (RAPD), em solo de Cerrado. A produtividade das plantas foi determinada pela produção de matéria seca, teor de N e produção de grãos (condições de campo). A estirpe nativa SLA 2.2 e a estirpe comercial CIAT 899 foram dominantes nos nódulos das plantas das parcelas mais produtivas, com índices de produtividade iguais ou superiores aos obtidos nos tratamentos em que foram aplicados 20 kg ha -1 de N.Termos para indexação: Phaseolus vulgaris, ocupação nodular, Elisa, RAPD.

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Variability in symbiotic efficiency with respect to the growth of pea and lentil inoculated with various rhizobial genotypes originating from sub-humid and semi-arid regions of eastern Algeria

et al. 2021

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The contributions of plant and bacteria genotypes in the growth and nitrogen accumulation of inoculated alfalfa

Cited by 7 publications

References 9 publications

Selection of Rhizobium leguminosarum bv. viceae strains for inoculation of Pisum sativum L. cultivars: Analysis of symbiotic efficiency and nodulation competitiveness

Selection of Rhizobium leguminosarum bv. viceae strains for inoculation of Pisum sativum L. cultivars: Analysis of symbiotic efficiency and nodulation competitiveness

Rhizobium strains competitiveness on bean nodulation in Cerrado soils

Variability in symbiotic efficiency with respect to the growth of pea and lentil inoculated with various rhizobial genotypes originating from sub-humid and semi-arid regions of eastern Algeria

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