Soil acidity in relation to groundnut-Bradyrhizobium symbiotic performance

Rossum, Diman van; Muyotcha, A; Hoop, B de; Verseveld, HW van; Stouthamer, A. H.; Boogerd, Fred C.

doi:10.1007/bf00007965

Cited by 21 publications

(10 citation statements)

References 21 publications

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“…This finding is in line with the study on peanut cultivars (van Rossum et al 1994) that had similar nodulation in neutral soil pH condition. It has been reported previously by Alwi et al (1989) who tested 29 Bradyrhizobium against 16 cultivar of peanut and found that some of the isolates were effective with varieties and other showed a degree of specificity with cultivar.…”

Section: Discussionsupporting

confidence: 92%

Development of environmental friendly bioinoculate for peanut (Arachis hypogea L.) production in Eastern Ethiopia

Argaw

2017

Environ Syst Res

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Background: Bacterial bioinoculate is one of environmentally friendly input for crop production. Several works revealed that effectiveness of Rhizobium bioinoculant have been affected by the native rhizobia population. Hence, this study was initiated to evaluate the effect of selected Bradyrhizobium in nodulating peanut in the major growing areas of Ethiopia. Methods:The effect of eight effective Bradyrhziobium vis-a-vis 20 kg N ha −1 and the control check on the nodulation and yield of two peanut cultivars (Sedi and Werer 942) at Babile and Fedis, eastern Ethiopia, during 2013 cropping season was evaluated. Results:The results showed that the inoculation, location and cultivar and their two and three ways interaction had a significant influence on the nodulation and grain yield. Inoculation of Bradyrhizobium increased the nodule number, nodule dry weight, number of seeds per plants, total pods weight, hundred seeds weight, total biomass yield, grain yield and shelling % up to 37, 24.9, 22.4, 22.5, 5.5, 26.2, 35.8 and 24.1%, respectively. Isolate HUGNR-29 was found to be more effective as it scored the highest nodule dry weight and grain yield. Application of inorganic N increased the yield and yield components of peanut in either of locations. Though the statistically better effective nodule % was recorded at Babile, significantly higher nodule number, nodule dry weight, and total N accumulation were obtained from Fedis than Babile site. Significantly higher total pods weight, hundred seeds weight, total biomass weight, grain yield and total plant N accumulation was recorded with the cultivar werer-962 than those produced with Bati-Sedi. Conclusions:The result showed that Bradyrhizobium inoculation is essential to improve the peanut production through environmentally and economically sustainable ways though the soil native rhizobia nodulating peanut was high. Peanut cultivar and study site based rhizobia inoculant development is also important.

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Section: Discussionsupporting

confidence: 92%

Development of environmental friendly bioinoculate for peanut (Arachis hypogea L.) production in Eastern Ethiopia

Argaw

2017

Environ Syst Res

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“…Our bradyrhizobial strains grew well when cultured in liquid CAS, and quantification of siderophore production showed wide variations among the 3 strains (Table 17.4). Similar results have been published for other bradyrhizobial species (van Rossum et al 1994;Khandelwal 2002).…”

Section: Discussionsupporting

confidence: 90%

Symbiotic and Agronomic Characterization of Bradyrhizobial Strains Nodulating Cowpea in Northern Peru

Valdez

Soriano

Prado

et al. 2016

Biological Nitrogen Fixation and Beneficial Plant-Microbe Interaction

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Eighty bacterial strains were isolated from root nodules of cowpea (Vigna unguiculata) plants agriculturally grown in Northern Peru. After isolation, fifty of them reinfected cowpea and eight showed better symbiotic performance than control plants treated with nitrate both under greenhouse and field. Repetitive extragenic palindromic polymerase chain reaction (REP-PCR) clustered the strains into 3 REP-PCR groups. The partial sequence of the 16S rRNA gene from a representative strain of each REP-PCR pattern showed that the strains were closely

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“…Competitive dynamics among rhizobia are not the only factors that have potential to promote the maintenance of strain diversity and coexistence within soils. Variation in rhizobial effectiveness has in many cases been demonstrated to be context dependentthat is, variable depending on the host species with which a strain associates , or on the environmental conditions under which the interaction occurs (van Rossum et al 1994;Zahran 1999). We thus hypothesized that increasing rhizobial diversity may enhance plant productivity in plant communities where multiple legume species are present (e.g.…”

Section: Discussionmentioning

confidence: 99%

Partner diversity and identity impacts on plant productivity in Acacia–rhizobial interactions

et al. 2014

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Summary1. Genetic variation for functionally important traits is ubiquitous in communities of nitrogen-fixing rhizobia, and while some studies have described significant effects of diversity on the functioning of plant-associated microbial communities, we lack a systematic test of how rhizobial diversity influences plant productivity. 2. The complexity of potential interactions among rhizobia and plants complicates the development of general predictions regarding causal relationships between rhizobial diversity and plant productivity. For example, while rhizobial complementarity may result in positive associations between symbiont diversity and plant productivity, antagonistic competition may reduce rhizobial community function. 3. Using two widespread native Australian Acacia species (A. salicina, A. stenophylla) and experimental rhizobial communities derived from 16 bacterial genotypes naturally associated with these hosts, we examined how the provision of mutualistic benefit varies with rhizobial identity, diversity and phylogenetic relatedness. 4. Analysis of plant performance in relation to rhizobial genotypic richness revealed that the presence of multiple rhizobial genotypes in the rhizosphere was associated with a general decrease in plant productivity compared to growth with single rhizobial genotypes. Importantly, these results appear to be robust in the face of variation in host identity and host diversity (i.e. one or two species mixtures). We also found that rhizobial genotypic identity and host species significantly influenced plant productivity in Acacia-rhizobia interactions, both in single-and multistrain inoculations. 5. Synthesis. Together, our data show that multiple rhizobia interacting with a single host species creates opportunities for emergent or higher-order effects that extend beyond those that could be simply predicted based upon outcomes of pairwise interactions and that increased mutualist diversity does not necessarily translate into positive effects on plant growth.

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Soil acidity in relation to groundnut-Bradyrhizobium symbiotic performance

Cited by 21 publications

References 21 publications

Development of environmental friendly bioinoculate for peanut (Arachis hypogea L.) production in Eastern Ethiopia

Development of environmental friendly bioinoculate for peanut (Arachis hypogea L.) production in Eastern Ethiopia

Symbiotic and Agronomic Characterization of Bradyrhizobial Strains Nodulating Cowpea in Northern Peru

Partner diversity and identity impacts on plant productivity in Acacia–rhizobial interactions

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