Cotton growth and boron distribution in the plant as affected by a temporary deficiency of boron

Rosolem, Ciro Antônio; Costa, Á. S.

doi:10.1080/01904160009382062

Cited by 37 publications

(35 citation statements)

References 23 publications

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“…Here, B was incorporated into cell walls, probably bound to Ca, and was unavailable for the regular formation of new vascular tissue (Figures 2 and 4). Rosolem & Costa (2000) observed that a temporary B deficiency seems to cause a permanent damage to cotton plants, once there was no full growth recovery when B was replaced in nutrient solution. This was attributed to xylem malformation in the deficiency period (Robertson & Loughman, 1974) what seems to be the case in this experiment with coffee as well.…”

Section: Resultsmentioning

confidence: 99%

“…Cotton shoot dry matter yields, plant height and flower and fruit set were reduced by a temporary B deficiency, which could not be prevented by foliar application of B (Rosolem & Costa, 2000). The authors hypothesized that temporary B deficiency in a plant that does not retranslocate B causes permanent damage, once growth was not fully recovered after replacing B in the nutrient solution.…”

Section: Introductionmentioning

confidence: 99%

“…Considering the lack of relationship between B concentrations in leaves and fruits (Marubayashi et al, 1994;Lima Filho & Malavolta, 1988) and the inconsistent responses to B fertilization (Santinato et al, 1991;Almeida & Matiello, 1996), as well as a likely effect of B on xylem formation (Rosolem & Costa, 2000), a temporary deficiency could impair B translocation and redistribution thereafter.…”

Section: Introductionmentioning

confidence: 99%

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Coffee leaf and stem anatomy under boron deficiency

Rosolem

Leite

2007

Rev. Bras. Ciênc. Solo

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SUMMARYBoron deficiency in coffee is widely spread in Brazilian plantations, but responses to B fertilizer have been erratic, depending on the year, form and time of application and B source. A better understanding of the effects of B on plant physiology and anatomy is important to establish a rational fertilization program since B translocation within the plant may be affected by plant anatomy. In this experiment, coffee plantlets of two varieties were grown in nutrient solutions with B levels of 0.0 (deficient), 5.0 μM (adequate) and 25.0 μM (high). At the first symptoms of deficiency, leaves were evaluated, the cell walls separated and assessed for B and Ca concentrations. Scanning electron micrographs were taken of cuts of young leaves and branch tips. The response of both coffee varieties to B was similar and toxicity symptoms were not observed. Boron concentrations in the cell walls increased with B solution while Ca concentrations were unaffected. The Ca/B ratio decreased with the increase of B in the nutrient solution. In deficiency of B, vascular tissues were disorganized and xylem walls thinner. Bdeficient leaves had fewer and deformed stomata.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Coffee leaf and stem anatomy under boron deficiency

Rosolem

Leite

2007

Rev. Bras. Ciênc. Solo

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“…Apesar de Rosolem & Costa (2000) constatarem que o B, aplicado por via foliar no algodoeiro, não é translocado do local de aplicação para as demais partes da planta, denotando uma mobilidade restrita desse nutriente nestas plantas, Carvalho et al (1996) obtiveram aumentos de produtividade de algodão com aplicações foliares de B. Bevilaqua et al (2002) também afirmam que a aplicação foliar de B pode aumentar o número de vagens e a massa de sementes por planta, quando realizada na fase de floração.…”

Section: Resultsunclassified

Adubação foliar de boro em diferentes estádios fenológicos da cultura do amendoim

Mantovani¹,

Calonego

Foloni

2013

Rev. Ceres

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Boron leaf application at different growth stages of peanutBoron leaf application to the peanut crop can be a viable strategy for supplying this element to the plant, however, knowledge os lacking on rate, time and dose split. The aim of this study was to evaluate the production and the leaf mineral composition at different rates, application times and split of boron fertilization. The experiment was conducted in the summer harvest 2010/2011 in an Oxisol in Rubiácea (SP). Leaf applications of boron rates of 0, 0.5, 1.0, 1.5 and 2.0 kg ha -1 were tested using boric acid as source. The effects of boron fertilization were tested in single doses at the V1 and R5 growth stages, in addition to splitting the rate of 1 kg ha -1 (0.5 kg ha -1 at V1 and R5), 1.5 (0.75 kg ha -1 at V1 and R5; 0.5 kg ha -1 at V1, R1 and R5) and 2.0 kg ha -1 (1.0 kg ha -1 at V1 and R5; 0.5 kg ha -1 at V1, R1, R3 and R5). The increase in peanut yield occured only at the rate of 1.5 kg ha -1 split in three applications of 0.5 kg ha -1 at V1, R1 and R5. The leaf application of 2.0 kg ha -1 of B to peanut cause a depressing effect on yield and number of pods per plant. A adubação boratada foliar, na cultura do amendoim, pode ser uma estratégia viável para fornecimento desse elemento à planta; porém, são poucos os conhecimentos sobre dosagens, épocas e efeitos de parcelamento das doses. O objetivo deste trabalho foi avaliar as características de produção e a composição mineral foliar em diferentes doses, épocas de aplicação e parcelamentos da adubação boratada. O experimento foi conduzido na safra de verão 2010/2011, em Latossolo Vermelho distroférrico, em Rubiácea (SP). Foram estudadas as doses de zero; 0,5; 1,0; 1,5 e 2,0 kg ha -1 de boro (B), aplicadas por via foliar, utilizando-se como fonte o ácido bórico. Os efeitos da adubação boratada foram testados em doses únicas nos estádios V1 ou R5, além do parcelamento da dose de 1,0 kg ha -1 (0,5 kg ha -1 em V1 e R5), de 1,5 (0,75 kg ha -1 em V1 e R5; 0,5 kg ha -1 em V1, R1 e R5) e de 2,0 kg ha -1 (1,0 kg ha -1 em V1 e R5; 0,5 kg ha -1 em V1, R1, R3 e R5). O aumento na produtividade de amendoim em casca ocorreu apenas com a dose de 1,5 kg ha -1 , parcelada em três aplicações de 0,5 kg ha -1 em V1, R1 e R5. A utilização de 2,0 kg ha -1 de B foliar no amendoim causou efeito depressivo na produtividade, rendimento e número de vagens por planta. Palavras-chave:Arachis hypogaea, ácido bórico, adubação foliar.

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“…Boron participates in cell wall formation (Brown et al, 2002), cell division and elongation (Goldbach et al, 2001;Oliveira et al, 2006), membrane function (Zhao and Oosterhuis, 2003) and carbohydrate metabolism and transport (Zhao and Oosterhuis, 2002;Sheng et al, 2009). Boron deficiency causes a rapid inhibition of plant growth and was believed to have low phloem mobility (Rosolem and Costa, 2000). Although B mobility has been demonstrated in some species (Brown et al, 2002), its role remains controversial (Shaaban, 2010).…”

Section: Introductionmentioning

confidence: 99%