The Effect of Calcium on Certain Characteristics of Peanut Fruit<sup>1</sup>

Colwell, W. E.; Brady, N. C.

doi:10.2134/agronj1945.00021962003700090003x

Cited by 15 publications

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“…Fornasieri et al (1987) também não conseguiram aumentar o número de vagens por planta mediante a utilização de calcário como corretivo, mas isso tornou-se possível com o emprego de calcário em cobertura, o que resultou em acréscimos na produtividade de amendoim em vagens. Dessa forma, a aplicação de calcário em cobertura no estágio inicial de florescimento parece ser mais eficiente do que o calcário aplicado como corretivo para o fornecimento de Ca, o qual, de acordo com Colwell & Brady (1945a) e Walker et al (1981, previne o abortamento dos óvulos fertilizados, além de proporcionar aumento no número de vagens. Outra opção seria, em uma única operação, aplicação do calcário no sulco junto com a semeadura, eliminando a técnica de fornecimento de Ca via cobertura, uma vez que o calcário tem baixa movimentação no solo, não resultando em prejuízo à nutrição da planta pelo nutriente no perío-do de maior necessidade.…”

Section: Resultsunclassified

Produtividade e componentes da produção do amendoim da seca em razão da época de semeadura e da aplicação de cálcio

Crusciol

Lazarini

Golfeto

et al. 2000

Pesq. agropec. bras.

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RESUMO -Este trabalho teve por objetivo estudar o efeito do calcário, como fornecedor de cálcio, em diferentes épocas de semeadura, na cultura do amendoim cultivar Tatu, sobre os componentes da produção e a produtividade de vagens em semeadura na época considerada seca. O experimento foi conduzido em um Latossolo Vermelho-Escuro, argiloso, em Selvíria, MS. Foram estudadas quatro épocas de semeadura do amendoim da seca (21/1, 4/2, 18/2 e 4/3), combinadas com quatro doses de Ca (0, 45, 90 e 135 kg ha -1 de Ca), aplicadas no sulco de semeadura, usando como fonte calcário dolomítico com PRNT de 90,1% e com teores de 21% de CaO e 18% de MgO. Foram avaliados o número de vagens por planta, o número de grãos por vagem e por planta, o peso de 100 grãos, o rendimento e a produtividade das vagens. Conclui-se que: 1) à medida que se atrasa a semeadura, há a probabilidade de ocorrer deficiência hídrica nos períodos vegetativo e reprodutivo, reduzindo a produtividade do amendoim da seca; 2) há boa produtividade de vagens quando a semeadura é realizada até o início do mês de fevereiro; 3) a resposta do amendoim da seca ao Ca é baixa em solos onde inicialmente se tem alto teor de Ca e saturação por bases considerada média, principalmente, quando a disponibilidade hídrica também é um fator limitante; 4) a aplicação de calcário no sulco de semeadura como meio de fornecimento de Ca para a cultura do amendoim é uma prática viável.Termos para indexação: calagem, rendimento de colheitas, vagens, peso. PRODUCTIVENESS AND YIELD COMPONENTS IN DRY SEASON PEANUT AS AFFECTED BY PLANTING TIME AND CALCIUM FERTILIZATIONABSTRACT -The effect of Ca fertilization and sowing time on yield components and peanut pod yield in the dry season was studied. The experiment was conducted under field conditions in a DarkRed Latosol, loamy texture, in Selvíria, MS, Brazil. Four sowing times (Jan. 21, Feb. 4, Feb. 18, and Mar. 4) were combined with four calcium levels (0, 45, 90 and 135 kg ha -1 of Ca), applied at the sowing time, into the furrows, utilizing dolomite limestone with PRNT 90.1% (21% of CaO and 18% of MgO). The number of pods per plant, number of grains per pod and per plant, 100 grains weight, hulled grains yield and peanut pod yield were determined. It is concluded that: 1) as the sowing is delayed, a water stress may occur in the growing period, and in the reproductive period, reducing the dry-season peanut crop productiveness; 2) there are good yields if planting is accomplished at the beginning of February; 3) the response for Ca fertilization is low in soils with high Ca level and medium basis saturation, specially when water conditions are also a limiting factor during dry season crop; 4) lime applied at the sowing time into the furrows is recommended.

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Section: Resultsunclassified

Produtividade e componentes da produção do amendoim da seca em razão da época de semeadura e da aplicação de cálcio

Crusciol

Lazarini

Golfeto

et al. 2000

Pesq. agropec. bras.

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“…Calcium deficiency has been known to decrease peanut yields by increasing the number of empty pods and decreasing the flower fertility, the number of pegs and root growth (Colwell and Brady, 1945;Walker et al, 1981). Adams and Pearson (1970) reported that peanut is not sensitive to soil acidity an toxic aluminum (Al), so, the yield increase due to liming is a consequence of an increase in Ca levels in the soil in the fruiting zone.…”

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confidence: 99%

Yield and nitrogen uptake of peanuts as affected by lime, cobalt, and molybdenum

Rosolem

Caires

1998

Journal of Plant Nutrition

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Peanut response to lime has been associated to calcium (Ca) nutrition, but a higher nitrogen (N) Uptake has been observed in limed plots probably due to an increase in molybdenum (Mo) availability. A two-year experiment was conducted to study the effects of Mo, cobalt (Co), and liming on peanut yields and N nutrition. Peanut seeds were treated with Mo and/or Co and grown in soil with base saturation about 13, 41, 57, and 71%. There was no effect of seed treatment with Co on peanut yields or N nutrition. Liming and Mo application increased N contents in the leaves. Nitrogen uptake was increased by Mo and liming in cv. Tatu and only by liming in cv. Tupã. Manganese (Mn) contents in the leaves were decreased by liming. The higher yields were observed when the Ca/Mn ratio in the leaves was above 25. In acid soils, low availability of Mo and Mn toxicity can impair N acquisition by peanut plants and decrease grain yields.

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“…minimum concealed damage (Colwell and Brady, 1945;Bledsoe and Harris, 1951;Cox and Reid, 1964). The materials used to supply this are calcium sulfate anhydrite (landplaster) and gypsum.…”

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Effect of Calcium and Irrigation Treatments on Peanut Yield, Grade and Seed Quality1

Cox¹,

Sullivan²,

Martin

1976

Peanut Science

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The effect of irrigation and/or Ca (calcium) application on yield, grade and seed quality was studied using Florigiant peanuts planted on three dates. Calcium application resulted in a small, but consistent, yield increase at all planting dates. Irrigation resulted in a large yield response on early planted peanuts and no response on late planted ones. Grade, specifically sound mature kernel percentage, was improved by both Ca and irrigation treatments but the effects were only slightly additive. Similar interaction effects were noted as these treatments increased the germination percentage of the seed produced and decreased the percentage of kernels with the form of damage termed dark plumule. Both treatments also decreased the amount of watery hypocotyl damage and increased the Ca concentration in the seed. Germination was 89 to 94% when the seed Ca level was greater than 420 ppm, but fell linearly to 52% when the seed Ca decreased from 420 to 200 ppm. Additional Index Words: Planting date, Harvest date, Germination, Dark plumule, Watery hypocotyl, Seed, Soil, Arachis hypogaea L.Large seeded Virginia-type peanuts (Arachis hypogaea L.) often need additional Ca supplied to the pegging zone to insure maximum pod fill and

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The Effect of Calcium on Certain Characteristics of Peanut Fruit¹

Abstract: Agronomy, respectively. 3Figures in parenthesis refer to "Literature Cited", p. 708. 4A peanut fruit has one or more compartments in each of which one kernel may form. An individual compartment is referred to as an ovarian cavity.

Cited by 15 publications

References 0 publications

Produtividade e componentes da produção do amendoim da seca em razão da época de semeadura e da aplicação de cálcio

Produtividade e componentes da produção do amendoim da seca em razão da época de semeadura e da aplicação de cálcio

Yield and nitrogen uptake of peanuts as affected by lime, cobalt, and molybdenum

Effect of Calcium and Irrigation Treatments on Peanut Yield, Grade and Seed Quality1

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The Effect of Calcium on Certain Characteristics of Peanut Fruit1

Abstract: Agronomy, respectively. 3Figures in parenthesis refer to "Literature Cited", p. 708. 4A peanut fruit has one or more compartments in each of which one kernel may form. An individual compartment is referred to as an ovarian cavity.

Cited by 15 publications

References 0 publications

Produtividade e componentes da produção do amendoim da seca em razão da época de semeadura e da aplicação de cálcio

Produtividade e componentes da produção do amendoim da seca em razão da época de semeadura e da aplicação de cálcio

Yield and nitrogen uptake of peanuts as affected by lime, cobalt, and molybdenum

Effect of Calcium and Irrigation Treatments on Peanut Yield, Grade and Seed Quality1

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The Effect of Calcium on Certain Characteristics of Peanut Fruit¹