Sustainability and profitability of aerobic rice production in Brazil

Pinheiro, B. da S.; Castro, Emilio; Guimarães, C. M.

doi:10.1016/j.fcr.2005.08.013

Cited by 85 publications

(65 citation statements)

References 3 publications

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“…Rice consumption has been increasing over the years due to ever increasing population. Unfortunately, rice productivity is not increasing at the pace required to keep up with the demand due to decreasing soil fertility, poor management of soil resources, build-up of pathogens and accumulation of phytotoxic substances (Pinheiro et al, 2006;Mishra et al, 2014;Pereira and Castro, 2014). Farmers usually rely on agrochemicals to maintain the crop productivity (Wang et al, 2010;Zaman et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Molecular Characterization of Stress Tolerant Plant Growth Promoting Rhizobacteria (PGPR) for Growth Enhancement of Rice

Habib¹,

Kausar²,

Saud³

et al. 2015

IJAB

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The study was undertaken to characterize plant growth promoting rhizobacteria (PGPR) for growth enhancement and stress tolerant traits and their efficacy on early establishment of rice seedling. In vitro growth promoting traits revealed that out of 30 PGPR isolates, 18 fixed nitrogen, 17 solubilized tri-calcium phosphate, 29 and 17 produced IAA with or without addition of L-tryptophane. In case of stress tolerant activities, PGPR isolates tolerated pH ranging from 5 to 10, Nacl from 1 to 6% and polyethylene glycol (PEG) from 10 to 40%, respectively. They showed antagonistic activity against Pyricularia oryzae with PIRG values ranging from 7−68%. After two-stage of screening, isolates UPMR7 and UPMR17 were identified based on 16s rRNA gene sequences and matched to the genus Bacillus and Citrobacter with 97−98% similarity. UPMR 7 and UPMR 17 were further evaluated on early growth promotion of rice variety MR219. Results revealed that PGPR inoculation had significant effects on plant growth compared to non-inoculated plants. Thus, it could be suggested that the isolates UPMR7 and UPMR17 have the potential to be used as biofertilizer and bioenhancer in sustainable rice cultivation.

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Section: Introductionmentioning

confidence: 99%

Molecular Characterization of Stress Tolerant Plant Growth Promoting Rhizobacteria (PGPR) for Growth Enhancement of Rice

Habib¹,

Kausar²,

Saud³

et al. 2015

IJAB

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show abstract

“…período maior de semeadura (datas 2 a 5) que as modernas. Isso pode ser um legado do programa de melhoramento, que desde os anos 1980 tem como estratégia a seleção direta pelo rendimento (produção potencial) para condições climáticas mais favoráveis (Pinheiro et al, 2006), possibilitando o risco de desenvolver genótipos específicos para essas condições, mas ineficientes quando as condições climáticas não são favoráveis (Tardieu & Hammer, 2012).…”

Section: Resultsunclassified

Épocas de semeadura afetando índices morfofisiológicos de cultivares de arroz de terras altas

et al. 2017

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“…Since the early 1980s, the upland rice production in "Cerrado" is moving from southwest towards northwest, i.e., from a more drought risky towards a less drought risky savanna area. A significant proportion of low-risk rice land is in the State of Mato Grosso, especially in its central-north region (Pinheiro et al, 2006), and in the south of the State of Pará.…”

Section: Introductionmentioning

confidence: 99%

Tolerance of upland rice genotypes to water deficit

Guimarães

Stone

Rangel

et al. 2013

Rev. bras. eng. agríc. ambient.

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Water deficit is one of the environmental factors that cause a great reduction in the upland rice grain yield. The objective of this study was to evaluate genotypes of upland rice with broad genetic diversity for tolerance to this stress and to identify secondary traits for evaluation of this tolerance. Sixty-four genotypes were evaluated during two years at the Experiment Station of EMATER, in Porangatu, GO, under wellwatered and water deficit conditions. The genotypes showed differences in grain yield and were influenced differently by the water treatments, both under a mild water deficit in the first year and under a severe one in the second year. The genotype grain yield under water deficiency was significantly and positively correlated with tiller fertility, number of panicles m -2 , 100-grain weight, and plant height, and negatively with spikelet sterility and the number of days for the occurrence of 50% panicle emergence. It was also observed that the most productive genotypes under water deficit conditions showed lower leaf temperature, indicating improved water status. Nine genotypes were productive in both water conditions and three were productive only when well-watered.

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Sustainability and profitability of aerobic rice production in Brazil

Cited by 85 publications

References 3 publications

Molecular Characterization of Stress Tolerant Plant Growth Promoting Rhizobacteria (PGPR) for Growth Enhancement of Rice

Molecular Characterization of Stress Tolerant Plant Growth Promoting Rhizobacteria (PGPR) for Growth Enhancement of Rice

Épocas de semeadura afetando índices morfofisiológicos de cultivares de arroz de terras altas

Tolerance of upland rice genotypes to water deficit

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