Water restriction and physiological traits in soybean genotypes contrasting for nitrogen fixation drought tolerance

Cerezini, Paula; Fagotti, Dáfila dos Santos Lima; Pípolo, A. E.; Hungría, Mariangela; Nogueira, Marco Antônio

doi:10.1590/1678-992x-2016-0462

Cited by 12 publications

(13 citation statements)

References 29 publications

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“…It indicates that the two soybean cultivars have different nodulation potentials, with ST 797 IPRO presenting a higher root nodulation capacity in both growing seasons, if compared to BRS 1074 IPRO (Table 3). The distinct nodulation potential (number and dry matter of nodules) among Brazilian soybean cultivars has been commonly reported in other studies (Zuffo et al 2014, Parente et al 2015, Cerezini et al 2017. These variations in the root nodulation capacity are related to differences in the genetic potential and other intrinsic characteristics of each cultivar (Felisberto et al 2015, Soares et al 2015.…”

Section: Resultssupporting

confidence: 52%

“…The survival of the soil bacterial community is dependent on several factors, such as soil pH, nutrient concentration, salinity and soil water content. The microorganism population of the soil is reduced with the decrease of the rainfall rate and, therefore, a low soil moisture can inhibit the root nodule formation and adversely affect the nodulation process of plants (Cerezini et al 2017).…”

Section: Source Of Variationmentioning

confidence: 99%

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Response of early soybean cultivars to nitrogen fertilization associated with Bradyrhizobium japonicum inoculation

Zuffo

Steiner

Busch

et al. 2018

Pesqui. Agropecu. Trop.

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In early soybean cultivars of high productive potential, the use of chemical nitrogen (N) fertilizer may be a critical factor to meet the crop N requirements for obtaining high yields. In order to determine the response of early soybean cultivars to doses and times of nitrogen fertilizer application, associated with the inoculation of Bradyrhizobium japonicum, two field experiments were conducted in a Quartzipsamment soil from the Brazilian tropical Savannah, during the 2016/2017 and 2017/2018 growing seasons. The experimental treatments were arranged in a 2 × 3 × 4 factorial scheme, being two soybean cultivars (BRS 1074 IPRO and ST 797 IPRO), three application times of N fertilizer (sowing, 30 and 50 days after the emergence) and four N doses (0 kg ha-1, 20 kg ha-1, 40 kg ha-1 and 60 kg ha-1). The following variables were evaluated: plant height, shoot dry matter, number of nodules, nodule dry matter, first pod height, number of pods, number of grains per pod, 1,000-grain mass, grain yield and harvest index. The use of N fertilizer did not improve the production components and did not increase the soybean grain yield, regardless of the doses and times of application. Therefore, it was concluded that, if efficient strains of B. japonicum are used in areas of first soybean crop, in a Quartzipsamment soil with medium-high fertility, especially with a relatively high N availability due to the mineralization of the soil organic matter, there is no need to apply starter or late doses of nitrogen fertilizer.

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Section: Resultssupporting

confidence: 52%

Section: Source Of Variationmentioning

confidence: 99%

Response of early soybean cultivars to nitrogen fertilization associated with Bradyrhizobium japonicum inoculation

Zuffo

Steiner

Busch

et al. 2018

Pesqui. Agropecu. Trop.

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“…Six soybean genotypes, contrasting for their responses to drought, were evaluated. The commercial genotype 'BRS 317' is considered as drought susceptible (Cerezini et al, 2014(Cerezini et al, , 2017. The genotypes R01-581F (Chen et al, 2007) and R02-1325R02- (Devi et al, 2014 were previously identified as NFDT.…”

Section: Methodsmentioning

confidence: 99%

“…such as, for instance, the limited transpiration under high-vapor pressure deficit (VPD) in PI 416937 (Devi et al, 2014), slow wilting in PI 471938 (Sadok et al, 2012;Devi & Sinclair, 2013), and nitrogen fixation tolerant to drought in 'Jackson' (Sall & Sinclair, 1991). Some progenies from 'Jackson' -R01-581F (PI 647961) and R01-416F (PI 647960) -also perform well under drought due to the maintenance of the biological nitrogen fixation (BNF) rates, contributing for the stability of yield (Chen et al, 2007;Cerezini et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

“…The biologically fixed N in soybean is transported mainly as ureides (Baral et al, 2016), whose accumulation caused by failure in the transport and metabolism of N compounds in plants under drought results in a feedback inhibition on the BNF (Baral et al, 2016). Less accumulation of ureides in soybean shoots under drought is recognized as an important trait for BNF (Devi & Sinclair, 2013;Cerezini et al, 2014Cerezini et al, , 2017. Thus, the nitrogen fixation drought tolerance (NFDT) is a key trait for keeping the symbiotic process and helps the plant to cope with drought (Chen et al, 2007;Devi & Sinclair, 2013;Sinclair & Nogueira, 2018).…”

Section: Introductionmentioning

confidence: 99%

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Physiological and N2-fixation-related traits for tolerance to drought in soybean progenies

Cerezini

Kuwano

Neiverth

et al. 2019

Pesq. agropec. bras.

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The objective of this work was to evaluate six soybean (Glycine max) genotypes for physiological traits and biological nitrogen fixation in drought conditions, and their capacity for recovery after rewetting, based on yield components. The genotypes evaluated in a greenhouse were the following: 'BRS 317', susceptible to drought; R01-581F and R02-1325, which show biological nitrogen fixation tolerant to drought; and the BRB14-207525, BRB14-207526, BRB14-207527 breed lines resulting from crossings between commercial genotypes and PI 471938, which shows a slow-wilting phenotype under drought. Drought conditions were applied to the genotypes at the full-flowering stage (R2) for ten days, whereas control plants were kept well-watered. Photosynthetic rate and gas exchanges under drought were more stable in the BRB14-207526 genotype. Root biomass increased 3.5 times in R02-1325 as an adaptive response to drought. In addition, leaf ureides - a trait related to biological nitrogen fixation in plants tolerant to drought - remained stable in genotypes R02-1325 and R01-581F exposed to drought, but decreased in BRB14-207527. Genotypes BRB14-207526, BRB14-207527, and R02-1325 show more favorable physiological performances and a lower accumulation of ureides under drought, besides a higher grain yield after rehydration. The BRB14-207526 and BRB14-207527 progenies show drought-tolerance traits from PI 471938, whereas R02-1325 is a promising source of tolerance to drought for soybean breeding.

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Plant growth‐promoting rhizobacterial communities from an area under the influence of iron mining and from the adjacent phytophysiognomies which have high genetic diversity

et al. 2020

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We evaluated symbiotic (rhizobia) and non-symbiotic efficiency and the diversity of native communities of plant growth-promoting rhizobacteria (PGPR) in soil samples from an area in recovery after iron mining (RA) and from adjacent phytophysiognomies (Ironstone Outcrops, Neotropical Savanna, Atlantic Forest) in the Quadrilátero Ferrífero region, MG, Brazil, in two climate seasons. Greenhouse experiments were conducted with siratro (Macroptilium atropurpureum) as a trap plant. The SPAD index in siratro was more effective in detecting the difference between the symbiotic efficiencies of the communities of PGPR than shoot dry matter, with readings of the SPAD index greater in RA. Genetic diversity, of 327 strains evaluated by partial sequencing of the 16S rRNA gene, showed 29 genera in the dry season and 19 in the rainy season, among these genera some recognized as nodulating and endophytes, and others potentially endophytes. Genera belonging to the phyla Acidobacteria, Actinobacteria, Bacteroidetes, Firmicutes, and Proteobacteria were found. The nodule-forming genera Bradyrhizobium and Rhizobium and the endophytic Paenibacillus were those of highest occurrence in both seasons and in all phytophysiognomies. The greater symbiotic efficiency and the high genetic diversity of the rhizobacterial community found in RA indicate that soil rehabilitation is effectively in process. As most of native legume species form symbiosis with Rhizobium and mainly Bradyrhizobium, these bacterial communities are an important source of potential inoculant strains, as well as, a relevant feature for the successful establishment of diverse legumes for revegetation purposes.

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Water restriction and physiological traits in soybean genotypes contrasting for nitrogen fixation drought tolerance

Cited by 12 publications

References 29 publications

Response of early soybean cultivars to nitrogen fertilization associated with Bradyrhizobium japonicum inoculation

Response of early soybean cultivars to nitrogen fertilization associated with Bradyrhizobium japonicum inoculation

Physiological and N2-fixation-related traits for tolerance to drought in soybean progenies

Plant growth‐promoting rhizobacterial communities from an area under the influence of iron mining and from the adjacent phytophysiognomies which have high genetic diversity

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