Leaf growth, gas exchange and assimilation performance of cowpea varieties in response to Bradyrhizobium inoculation

Ayalew, Tewodros; Yoseph, Tarekegn; Högy, Petra; Cadisch, Georg

doi:10.1016/j.heliyon.2022.e08746

Cited by 8 publications

(5 citation statements)

References 48 publications

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“…(2014) also observed that stomatal conductance and transpiration rate followed a trend similar to the photosynthetic rate in cowpea submitted to different shading levels, and this result was attributed to a high correlation between these variables. With the increase in transpiration rate, stomatal conductance, and photosynthetic rate, there was an increase in CO 2 consumed and a reduction of internal carbon, similar to that observed in the literature (Ayalew et al., 2022; Cotrim et al., 2021). Under ideal conditions, there is an increase in the photosynthetic rate and consequent increase in CO 2 processing, which results in internal carbon reduction (Cotrim et al., 2021).…”

Section: Resultssupporting

confidence: 84%

Growth, nodulation, production, and physiology of leguminous plants in integrated production systems

Freitas

Ferreira

Alves

et al. 2023

Agrosystems Geosci & Env

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Choosing the species suitable for cultivation in intercropped systems is a critical limiting factor for grain and forage production. This study aimed to evaluate the growth, nodulation, production, and physiology of cowpea (Vigna unguiculata) and guandu bean (Cajanus cajan) intercropped with buffel grass (Cenchrus ciliaris) and Eucalyptus urograndis (Eucalyptus grandis × Eucalyptus urophylla) in an integrated production system. Two experiments were conducted simultaneously, arranged in a 2 × 4 factorial scheme. The first factor consisted of the use of two integrated production systems. The second factor consisted of four distances (2, 4, 6, and 8 m) from the eucalyptus planting rows. In the first experiment, crop-forest systems (CFIS: eucalyptus trees and cowpea) and crop-livestock-forest systems (CLFIS: eucalyptus trees, cowpea, and buffel grass) were evaluated. In the second, livestock-forest systems LFIS1 (eucalyptus trees and guandu bean) and LFIS2 (eucalyptus trees, guandu bean, and buffel grass) were evaluated. In cowpea, nodulation was not influenced by production systems and distances, whereas in guandu bean, there was a reduction in the nodules' number and dry mass with the distance from the trees. Higher growth, biomass production, and photosynthetic activity of cowpea and guandu bean were observed with the increasing distance from the eucalyptus planting rows. However, cowpea increased the 100-seed weight at 2 and 4 m distances from the eucalyptus rows, improving the grains' quality close to the trees. The simultaneous cultivation with buffel grass did not affect the leguminous plant yield, promoting greater diversification and increasing the total biomass production of the intercropping.

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Section: Resultssupporting

confidence: 84%

Growth, nodulation, production, and physiology of leguminous plants in integrated production systems

Freitas

Ferreira

Alves

et al. 2023

Agrosystems Geosci & Env

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“…Increases in vegetative growth are associated with increased nitrogen supply through biological nitrogen fixation (Ayalew et al, 2022). These effects may be related to the occurrence of heterogeneous nodulation through the increase of the root area, thus increasing the sites of infection (Fukami et al, 2018;Galindo et al, 2018).…”

Section: Resultsmentioning

confidence: 99%

Co-inoculation with Bradyrhizobium spp. and Azospirillum brasilense in cowpea under salt stress

Nascimento

Souza

Nascimento

et al. 2023

Rev. bras. eng. agríc. ambient.

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Plants grown under salinity are subject to many morphological and physiological disorders. In this context, practices that can enable the use of saline water are essential. The deleterious effects of salinity can be mitigated by using beneficial microorganisms, especially diazotrophic bacteria. In this context, this study aimed to evaluate the effect of bacterial inoculation and co-inoculation using Bradyrhizobium spp. and Azospirillum brasilense on the growth, nodulation and production of cowpea under salt stress. The experiment was conducted using a randomized block design, in a 4 × 5 factorial arrangement, corresponding to four nitrogen sources (N1 - without nitrogen and without inoculant; N2 - fertilization with mineral nitrogen and without inoculant; N3 - inoculation of Bradyrhizobium spp.; and N4 - co-inoculation of Bradyrhizobium spp. and Azospirillum brasilense) and five values of electrical conductivity of irrigation water - ECw (0.4, 1.9, 3.4, 4.9 and 6.4 dS m-1), with five replicates. Co-inoculation with Azospirillum brasilense and Bradyrhizobium spp. favors the growth, production and nodulation of cowpea plants up to ECw of 0.4 dS m-1. Increase in the electrical conductivity of irrigation water negatively affects the growth, production and nodulation of cowpea plants in Corujinha variety, regardless of the nitrogen source used.

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“…It was measured by using a portable leaf area meter (model LI-3000A Li-COR, Lincoln, USA). Then, leaf area indexes (LAI) were calculated by using the following equation [ 19 ]:

…”

Section: Methodsmentioning

confidence: 99%

Intercropping and Rhizobium Inoculation Affected Microclimate and Performance of Common Bean (Phaseolus vulgaris L.) Varieties

Shumet¹,

Ayalew

Roro

et al. 2022

Scientifica

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A field experiment was carried out at Hawassa, during the 2020 cropping season with the objective to evaluate the impact of maize-common bean intercropping and Rhizobium inoculation on microclimate, growth, and yield of common bean varieties. Treatments consisting of two common bean varieties, two levels of inoculation and three spatial arrangements of common bean with another sole maize were laid out in a factorial arrangement in a randomized complete block design (RCBD) with three replications. The results revealed that the main effect of spatial arrangements highly significantly ( P < 0.001) affected soil and leaf temperature. Soil moisture content was improved under intercropped plots compared with sole cropping. The intensity of light and qualities, such as red, far-red, and photosynthetically active radiations (μmol m−2 s−1) and ultraviolet rays (UV)-A, UV-B (W m−2), were reduced under intercropping as compared to the sole. Interaction effects of variety, spatial arrangements, and inoculation significantly ( P < 0.01) affected plant height and leaf area index. Inoculated sole Nassir outperformed for plant height and leaf area index. Inoculated sole Hawassa Dume variety performed best for nodule number plant−1, nodule dry weight plant−1, pods number plant−1, 100 seed weight, grain yield, and above-ground biomass yield. The highest grain yield (2.8 t ha−1) was recorded from inoculated sole Hawassa Dume. However, considering the equivalent ratio (LER), intercropping with one maize row to two haricot bean rows spatial arrangements was productive by 62% more than sole cropping (total land equivalent ratio of 1.62%).

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Leaf growth, gas exchange and assimilation performance of cowpea varieties in response to Bradyrhizobium inoculation

Cited by 8 publications

References 48 publications

Growth, nodulation, production, and physiology of leguminous plants in integrated production systems

Growth, nodulation, production, and physiology of leguminous plants in integrated production systems

Co-inoculation with Bradyrhizobium spp. and Azospirillum brasilense in cowpea under salt stress

Intercropping and Rhizobium Inoculation Affected Microclimate and Performance of Common Bean (Phaseolus vulgaris L.) Varieties

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