The inoculation of cowpea culture with rhizobial lineage in Brazilian Cerrado Region

Frigo, Gislane Renata; Guimarães, Salomão Lima; Bonfim-Silva, Edna Maria; Polizel, Analy Castilho

doi:10.5897/ajmr2014.6948

Cited by 2 publications

(2 citation statements)

References 14 publications

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“…As for the significance of the data, our results were contrary to those obtained by Frigo et al (2014), who analyzed the inoculation of rhizobia strains in cowpea 'BRS New Era' (including the commercial strain BR3267) and obtained a positive but non-significant correlation of the NN variable with the NDM, DRM, DMAP and NAAP variables.…”

Section: Resultscontrasting

confidence: 99%

“…NAAP showed positive and significant correlations with NN, DRM and DMAP, positive but not significant correlation with NDM and negative with NODE. For the NAAP character, Frigo et al (2014) reported divergent results to ours, with a negative and non-significant correlation with DMAP and DRM, coinciding only the correlation of NDM with NAAP that was also positive, but not significant.…”

Section: Resultscontrasting

confidence: 83%

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Correlations and Path Analysis in Segregating Cowpea Generations Regarding Biological Nitrogen Fixation

Costa¹,

SiIva²,

Silva³

et al. 2022

JAS

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The objective of this research was to evaluate the correlations between variables related to the biological nitrogen fixation (BNF) in segregating generations of cowpea and to unfold these correlations in direct and indirect effects, through path analysis. An outdoor bench experiment was conducted at Carpina Experimental Sugarcane Station of, located at the Zona da Mata region of the State of the Pernambuco, Northeast of Brazil (Federal Rural University of Pernambuco), between March and April 2016. The seeds were planted in 20 cm × 30 cm polyethylene bags, using a substrate composed of a mixture of vermiculite and sand washed in a ratio of 1:1. Bradyrhizobium references, recommended for culture, were used as a mixture of two strains. Parental and F2, F3 and F4 generations were evaluated in a randomized block design with four replicates. Data collection was performed 45 days after the emergency (DAE). Phenotypic correlations and path analysis of the number of nodules per plant (NN), nodules dry mass (NDM), dry roots mass (DRM), dry mass of aerial part (DMAP), nodulation efficiency (NODE) and nitrogen accumulated in the aerial part (NAAP). The phenotypic correlations between the variables related to the BNF showed high magnitudes, demonstrating that there is a great influence of each of the variables on the others, furthermore the path analysis of the coefficients indicated that all the primary components (NN, NDM, DRM, DMAP and NODE) must be considered when it is desired to increase the NAAP in segregating generations of cowpea.

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Section: Resultscontrasting

confidence: 99%

Section: Resultscontrasting

confidence: 83%