Common Bean Seed Complements Molybdenum Uptake by Plants from Soil

Vieira, Rogério Faria; Paula, T.J. de; Pires, André Assis; Carneiro, José Eustáquio Souza; Rocha, Gilmar Silvério da

doi:10.2134/agronj2011.0115

Cited by 18 publications

(37 citation statements)

References 23 publications

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“…One low-cost strategy to solve this problem would be to provide farmers with Mo-rich seeds. Studies on the common bean have confirmed the efficacy of this approach (Vieira, Salgado, & Ferreira, 2005;Vieira, Paula Júnior, & Pires, 2011;Pacheco, Brito, Straliotto, Pérez, & Araújo, 2012;Almeida, Araújo, & Alves, 2013). Reducing the Mo fertilizer dose to produce Mo-rich seed can be achieved by determining the most appropriate growth stage at which to apply the fertilizer.…”

Section: Introductionmentioning

confidence: 95%

<b>Split application of molybdic fertilizer at the reproductive stage of common bean increases the molybdenum content in seed

et al. 2016

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ABSTRACT. We evaluated the effects of split molybdenum (Mo) application at the reproductive stage of the common bean on seed Mo content (SMoC) and seed quality in two trials in the Zona da Mata region, Minas Gerais. Plants were sprayed with 100 or 600 g Mo ha -1 at the V4 stage. The higher dose was also split into 100(V4)+500(R5), 100(V4)+500(R7), 100(V4)+250(R5)+250(R7), and 100(V4)+150(R5)+350(R7). SMoC from plants sprayed with 600 g (five treatments) was 3.7-or 62-fold higher than those sprayed with 100 g, with seeds from the former treatments exhibiting slightly poorer quality. Application of 100 g at V4 + 500 g at the reproductive stage (four treatments) increased SMoC 1.6-or 2.7-fold compared with SMoC from plants sprayed with 600 g at V4. Split application of 500 g with two sprays increased SMoC by 11% (p = 0.257) or 16% (p = 0.013) compared with one spray of 500 g. SMoC can be higher with Mo applied at R7 (pod formation) instead of at R5 (pre-flowering), without impairing seed quality. Thus, split Mo application between the R5 and R7 stages of the common bean saves molybdic fertilizer to produce Morich seeds, with only a slight decrease in seed quality.Keywords: Phaseolus vulgaris, seed molybdenum, seed quality, seed vigor, seed germination.Parcelamento da aplicação do adubo molíbdico na fase reprodutiva do feijão-comum aumenta o conteúdo de molibdênio na semente RESUMO. Avaliamos os efeitos de parcelamentos da aplicação de molibdênio (Mo) na fase reprodutiva do feijão-comum no conteúdo de Mo na semente (CMoS) e na sua qualidade fisiológica em dois ensaios na Zona da Mata, Minas Gerais. Pulverizaram-se feijoeiros com 100 ou 600 g Mo ha -1 na fase V4. Esta última dose também foi parcelada: 100(V4)+500(R5), 100(V4)+500(R7), 100(V4)+250(R5)+250(R7) e 100(V4)+150(R5)+350(R7). O CMoS de plantas pulverizadas com 600 g (cinco tratamentos) foi 3,7 ou 62 vezes maior que o das pulverizadas com 100 g; sementes deste tratamento apresentaram qualidade ligeiramente melhor que as daqueles. Aplicação de 100 g em V4 + 500 g na fase reprodutiva (quatro tratamentos) aumentou 1,6 ou 2,7 vezes o CMoS comparativamente ao CMoS de plantas adubadas com 600 g em V4. Parcelamento de 500 g em duas pulverizações aumentou em 11% (p = 0,257) ou 16% (p = 0,013) o CMoS comparativamente a uma pulverização. O CMoS pode ser mais alto quando se pulveriza o Mo em R7 (formação de vagens) comparativamente a R5 (pré-floração), sem prejuízo à qualidade da semente. Logo, o parcelamento do Mo nessas duas fases do feijão-comum economiza fertilizante molíbdico para produzir sementes ricas em Mo, com ligeira redução da qualidade da semente. Palavras-chave:Phaseolus vulgaris, molibdênio na semente, qualidade da semente, vigor da semente, germinação da semente.

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Section: Introductionmentioning

confidence: 95%

<b>Split application of molybdic fertilizer at the reproductive stage of common bean increases the molybdenum content in seed

et al. 2016

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“…These high values of SMoCc compared to those obtained when no Mo . The horizontal dotted line represents the seed Mo content (3.6 µg) at which common bean does not respond to Mo fertilization (Vieira et al, 2011b). Thin bars represent the standard deviation.…”

Section: Mo Concentration and Content In The Seeds Of Mo-fertilized Gmentioning

confidence: 99%

“…In regions with Mo-poor soils, as in Zona da Mata, plants grown from common bean seeds containing 3.6 ± 0.7 µg Mo per seed or more (high Mo content) did not respond to Mo spraying, unlike seeds with low Mo content (Vieira et al, 2011b). Seeds with high Mo content were derived from plants sprayed with 1,000 g ha -1 Mo and those with low Mo content (0.007 ± 0.001 or 0.248 ± 0.057 µg Mo per seed) from plants sprayed with water or 90 g ha -1 Mo, respectively .…”

Section: Introductionmentioning

confidence: 97%

Genotypic variability in seed accumulation of foliar-applied molybdenum to common bean

Vieira

Júnior

Carneiro

et al. 2014

Rev. Bras. Ciênc. Solo

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SUMMARYThe genotypic variability in molybdenum (Mo) accumulation in common bean seeds has been demonstrated in cases in which soil is the main Mo source, but this variability is yet unknown when Mo is foliar-applied. Therefore, seed Mo concentrations (SMoCc) and seed Mo contents (SMoCt) of 12 genotypes were determined in four experiments in the Zona da Mata, Minas Gerais, Brazil, in which plants were sprayed with 600 g ha -1 Mo. For comparison, two additional experiments without external Mo were conducted. Without Mo application, the average SMoCc was undetectable or 2.83 µg g -1 , without significant differences among genotypes. On average, with Mo applications, SMoCc ranged from 14.7 to 25.0 µg g -1 and SMoCt, from 3.94 to 6.84 µg. 'Majestoso' was among the genotypes with the highest SMoCc in the four experiments. However, the large-seeded 'Jalo MG-65' and 'Carnaval' generally had higher SMoCt than the small-seeded 'Majestoso'. 'Ouro Negro' and especially 'Valente' were among the genotypes with the lowest SMoCc and SMoCt. The values of these variables were 61 and 90 %, respectively, higher for 'Majestoso' than those for 'Valente'. Our results suggest that common bean genotypes differ in their capacity to accumulate foliar-applied Mo in the seeds. Mo-rich seeds of large-seeded genotypes or of small-seeded of small-seeded genotypes with good capacity to accumulate Mo in seeds can be produced with relatively less Mo fertilizer.Index terms: Phaseolus vulgaris, seed molybdenum content, foliar fertilization, growth habit.(

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“…Esses méto-dos são usados por agricultores bem informados e em regiões onde há disponibilidade de adubo molíbdico no comércio. Recentemente, com o aprimoramento da téc-nica para enriquecer sementes com Mo (Vieira et al, 2005, Vieira et al, 2011Pacheco et al, 2012), é possí-vel fornecer aos agricultores, a baixo custo (Vieira et al, 2011), esse micronutriente, por meio da semente. Nesse caso, a disponibilização de Mo para a planta independe de a tecnologia ser conhecida, ou não, pelo agricultor, e de o adubo molíbdico estar disponível, ou não, no comércio local.…”

Section: Introductionunclassified

“…Na Zona da Mata, 600 g ha -1 de Mo geralmente elevam o conteúdo de Mo para pelo menos 3,6 µg por semente (Vieira et al, 2014), teor com que os feijoeiros não mais respondem à aplicação de Mo na folhagem ( Vieira et al, 2011). Nessa região, o conteú-do de Mo da semente de feijão quase dobrou quando a dose de 1440 g ha -1 de Mo foi dividida em quatro subdoses e aplicada entre V4 (terceira folha trifoliolada) e R5 (pré-floração), em comparação com o efeito da aplicação única em V4 (Vieira et al 2005).…”

Section: Introductionunclassified

A aplicação foliar de molibdênio na fase de enchimento de vagens do feijão-comum pode reduzir a qualidade da semente

et al. 2015

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A aplicação foliar de molibdênio na fase de enchimento de vagens do feijão-comum pode reduzir a qualidade da sementeCom o objetivo de aprimorar a tecnologia de produção de sementes ricas em molibdênio (Mo), foram avaliados os efeitos da aplicação foliar de 600 g ha -1 de Mo na qualidade fisiológica da semente de feijão. Em campo, essa dose de Mo foi aplicada na fase V4 (terceira folha trifoliolada), ou parcelada de duas a quatro vezes e aplicada em V4, R6 (floração), R7 e, ou, R8 (enchimento de vagens). A aplicação de 300 g ha Foliar molybdenum applied to common bean pod filling may reduce seed qualityAiming to improve the technology of producing seed with high Mo content, the effects of 600 g ha -1 of foliar-applied Mo on common bean seed quality were evaluated. In the field, this Mo rate was applied at the V4 growth stage (third trifoliolate leave) or divided into two or four rates applied at V4, R6 (flowering), R7 and/or R8 (pod filling). Mo (300 g ha -1) applied at R6 did not affect seed quality relative to control (90 g ha -1 of Mo applied at V4). In the three treatments in which 200, 255 or 300 g ha -1 of Mo were applied at R7, only in one (255 g ha -1 ) Mo decreased seed germination and vigor relative to control. When 200, 255 or 300 g ha -1 of Mo were applied at R8 (five treatments), in general, Mo decreased seed germination and, in two cases, also seed vigor relative to control. It was concluded that 255 g ha -1 of Mo applied at R7 and, especially, doses of 200 g ha -1 of Mo or higher applied at R8 can reduce common bean seed quality.

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Common Bean Seed Complements Molybdenum Uptake by Plants from Soil

Cited by 18 publications

References 23 publications

<b>Split application of molybdic fertilizer at the reproductive stage of common bean increases the molybdenum content in seed

<b>Split application of molybdic fertilizer at the reproductive stage of common bean increases the molybdenum content in seed

Genotypic variability in seed accumulation of foliar-applied molybdenum to common bean

A aplicação foliar de molibdênio na fase de enchimento de vagens do feijão-comum pode reduzir a qualidade da semente

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