Strain Variation of Rhizobium meliloti on three Varieties of Medicago sativa<sup>1</sup>

Erdman, Lewis W.; Means, Ura Mae

doi:10.2134/agronj1953.00021962004500120011x

Cited by 21 publications

(7 citation statements)

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“…Legend: See Figure 1, Therefore, we have demonstrated that the efficiency of the "alfalfa-R. meliloti" symbiosis depends significantly on the genotypes of both partners. Previously a number of authors (Burton and Wilson, 1939;Erdman and Means, 1953;Gibson, 1962;Mytton et , 1984;Provorov and Simarov, 1990;Tan and Tan, 1986) have published variable values for the inputs of partners' genotypes into determination of efficiency for this symbiosis (4,8-39,8%, 7,2-32,4% and 6,0-47,0% for plant genotypes, bacterial genotypes and genotype interaction, respectively). We suggest that this inconsistency is partially due to measurements of symbiotic efficiency using plants of different ages.…”

Section: Resultsmentioning

confidence: 99%

“…This has been shown to lead to the accumulation of up to 200-400 kg N ha-i from the atmospheric N2 fixation (Berestetsky et al, 1987;LaRue and Patterson, 1981). Analysis of variance on data of alfalfa -R. meliloti interaction has revealed that symbiotic efficiency is controlled by both partners through additive and non-additive interaction of their genotypes (Burton and Wilson, 1939;Erdman and Means, 1953;Gibson, 1962;Mytton et al, 1984;Provorov and Simarov, 1990;Tan and Tan, 1986). At the same time the contributions of partners' genotypes to the observed variation of symbiotic efficiency differed greatly from one experiment to another and ranged from 4,8 to 39,8% for additive effects of cultivars, 7,2 to 32,4% for additive effects of strains and 6,0 to 47,0% for the non-additive interaction of partners.…”

Section: Introductionmentioning

confidence: 99%

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

et al. 1994

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The symbiotic efficiency of each of 30 alfalfa (16 Medicago sativa and 14 M. varia) cuhivars inoculated with 7 Rhizobium meliloti strains was studied in three field experiments. Two-factor analysis of variance of the obtained date demonstrated that the green mass yield and nitrogen accumulation depend on genotypes of both partners. The total contribution of plant and bacterial genotypes to the variation of green mass yield increased from 0-17% in the first year of alfalfa growth to 40-78% in the third year. The effect of the genotypic variability of the symbiotic partners was higher for N accumulation than for the green mass. There was a negative correlation between plant mass and N accumulation in the uninoculated plants with the relative (%) deviations of these parameters in the inoculated plants. In the experiments conducted in the Tashkent region the efficiency of the "alfalfa -R. meliloti" symbiosis was higher than in the experiment conducted in the Tureen region.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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

et al. 1994

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“…They found, though, that the relatiQnship was affected by environmental conditions that tended to mask the influence of the host plant. In a more recent study Erdman and -Means (1953) studied the development of 21 strains of R. meliloti on three lucernes. The variety Du Puits showed good acceptance of most strains, and they suggested that this type of varietal compatability with a wide range of rhizobia could account for the agronomic adaptability of such a variety of lucerne to a diversity of soil conditions.…”

Section: Discussionmentioning

confidence: 99%

Rhizobiuminoculation of lucerne (Medicago sativaL.)

Blair

Bennett

1960

New Zealand Journal of Agricultural Research

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l1he Rhizobium content af cammercial inaculant;; has been increased since the time these preparatians were intraduced to' replace the formerly used agar cultures.Regardless of the presence of ather arganisms, the powder inaculants now in use are effective in lucerne nodulation and nitrogen fixaJtion.NO' benefit was demonstrated in favour af disinfectian af lucerne seed priar to' inoculatian, while in seed pelleted with lime there was a decline in the survival of rhizabia aver a 3-months' periad.In a number of soils where lucerne establishment in the past has failed it has been shawn that indigenous lucerne rhizabia (Rhizobium meliloti) were absent ar ineffective, in sharp cantrast with the abundance and nodulation efficacy af Rhizobium trifolii an subterranean claver. In some of these soils lucerne was established by the inaculation of seed with effective rhizabia, aided by raising the sail pH with lime applicatians and ~he use af inaculated seed, pelle ted with lime ar magnesium.Among seven varieties af lucerne different responses were obtained to' inoculatian wi~ single strains of R. meliloti, but the use af multistrain commercial cultures achieved satisfactary nodulatian and grawth of ~hese varieties.

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“…Many authors have investigated, in the greenhouse, the influence of various Rhizobium meliloti strains on fuIedicago sativa and other species (Burton and Wilson 1948;Gibson 1962;Leach 1968;Erdman and Means 1953;Melkumova 1957;Hamatova1965;Brockwell and Hely 1966 The strain effects were highly significant in the second cut of the second experiment only, whereas the strain X cultivar interaction was considerably attenuated here (Table 1).…”

Section: Introductionmentioning

confidence: 89%