Seleção de estirpes de Rhizobium spp para amendoim (Arachis hypogaea L.) e galáxia (Galactia striata (Jacq.) Urban.)

Lopes, Eli Sidney; Lovadini, L. A. C.; Miyásaka, Shiro; Igue, Toshio; Giardini, A.

doi:10.1590/s0006-87051974000100036

Bragantia

1974

DOI: 10.1590/s0006-87051974000100036

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Seleção de estirpes de Rhizobium spp para amendoim (Arachis hypogaea L.) e galáxia (Galactia striata (Jacq.) Urban.)

Eli Sidney Lopes¹,

L. A. C. Lovadini²,

Shiro Miyásaka³

et al.

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1980

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Nodulation and Nitrogenase Activity of Peanuts Inoculated with Single Strain Isolates of Rhizobium1

Elkan¹,

Wynne²,

Schneeweis³

et al. 1980

Peanut Science

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Nodulation and nitrogenase activity (μM C2H4/plant/hr) for 48 diverse peanut (Arachis hypogaea L.2) genotypes were determined in a field site where the soil supported high populations of endemic rhizobia. These same rhizobia and peanut genotypes had previously been evaluated in a greenhouse study. Both host genotypes and rhizobial strains significantly influenced nodulation and nitrogenase activity. Roots of Virginia-type host plants were better nodulated and exhibited higher nitrogenase activity than genotypes of the fastigiate type. Florigiant, the predominant cultivar in the Virginia-North Carolina area, produced the most nodules and had the greatest nitrogenase activity. Variation in nodulation and nitrogenase activity for the single strain isolates in the presence of naturally occurring field populations indicated that the strains were able to compete for nodule sites. Strains both less and more effective than the naturally occurring rhizobial population were observed. Nitrogenase activity of the strains was correlated with previous greenhouse results suggesting that greenhouse evaluation of rhizobial strains for peanuts is useful as a preliminary screen before evaluation in the field.

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Nodulation and Nitrogenase Activity of Peanuts Inoculated with Single Strain Isolates of Rhizobium1

Elkan¹,

Wynne²,

Schneeweis³

et al. 1980

Peanut Science

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show abstract

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Seleção de estirpes de Rhizobium spp para amendoim (Arachis hypogaea L.) e galáxia (Galactia striata (Jacq.) Urban.)

Cited by 1 publication

References 0 publications

Nodulation and Nitrogenase Activity of Peanuts Inoculated with Single Strain Isolates of Rhizobium1

Nodulation and Nitrogenase Activity of Peanuts Inoculated with Single Strain Isolates of Rhizobium1

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