Doses de cálcio no crescimento do feijoeiro cultivado em solução nutritiva, na presença de alumínio

Silva, Samuel de Assis; Moraes, Willian Bucker; Souza, Gustavo Soares de

doi:10.4067/s0718-34292011000300008

Cited by 4 publications

(1 citation statement)

References 6 publications

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“…Thus, as the quality of the seedlings is indispensable to a greater percentage of their survival in the field and a greater crop yield (Camargo et al, 2011), it is necessary to use nutritional management that favors crop rooting. Supplemental fertilization of the substrate with the nutrients calcium (Ca) and phosphorus (P) may be an alternative for improving the rooting of sweet potato seedlings in the greenhouse, since several studies have demonstrated the effects of these nutrients on the root growth of crops (O'Sullivan et al, 1997;Caires et al, 2001;Sánchez-Calderon et al, 2005;Silva et al, 2011;Fernandes et al, 2014). However, the suitable amounts of Ca and P that should be applied to the substrate to increase the rooting and quality of sweet potato seedlings are not yet known.…”

Section: Introductionmentioning

confidence: 99%

Rooting of sweet potato seedlings submitted to supplemental calcium and phosphorus nutrition on substrate

Ichikawa

Fernandes

Mota

2019

Rev. bras. eng. agríc. ambient.

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The objective of this study was to evaluate the rooting and growth of sweet potato seedlings in trays in response to substrate supplementation with calcium (Ca) and phosphorus (P). Two greenhouse experiments were conducted in a randomized block design with a split plot scheme and eight repetitions. In the Ca experiment, the plots were the doses of 0, 100 and 200 mg kg-1 of Ca, and in the P experiment, by the doses of 0, 150 and 300 mg kg-1 of P. In both experiments, the subplots corresponded to the sampling time of seedlings (15, 30, 45, 60 and 75 days after planting). The Ca present in the substrate was sufficient to promote the proper rooting and growth of sweet potato seedlings in the trays. The Ca supply in excess (200 mg kg-1) adversely affected the growth of seedlings that remained in the tray for more than 60 days. Although the seedlings supplied with P showed higher root growth rate after 45 days, the initial P available in the substrate was sufficient to promote the adequate growth of the seedlings in the trays until 60 days.

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Section: Introductionmentioning

confidence: 99%

Rooting of sweet potato seedlings submitted to supplemental calcium and phosphorus nutrition on substrate

Ichikawa

Fernandes

Mota

2019

Rev. bras. eng. agríc. ambient.

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Selection of common bean lines for calcium use efficiency

Domingues¹,

Ribeiro²,

Andriolo³

et al. 2014

Rev. Ciênc. Agron.

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The study of the calcium use efficiency in common bean is unprecedented. Therefore, the objectives of this work were to evaluate the genetic variability of common bean lines for plant growth and grain yield characters, the calcium accumulation in different plant tissues at low and high calcium availabilities, and to select common bean lines with high calcium use efficiency and responsive to the calcium application by different indices. Twelve common bean lines were supplied with a nutrient solution at low (1.10 mmol L -1 ) and high (3.85 mmol L -1 ) calcium concentration and were evaluated. The L 15 line reached the higher values of dry mass of shoot, number of pods and grains per plant, number of grains per pod and grain yield at the low calcium concentration. Calcium accumulation in tissues was, on average, higher in leaves, followed by stems, pods and grains. The L 175 and L 159 lines have higher calcium concentration in grains (> 1.1 g kg -1 MS), regardless of the calcium concentration supplied to plants. The L15 line is efficient in calcium use. The L 221 and L 159 lines are responsive to the calcium application in the rooting medium.Key words: Common bean. Plants-calcium effect. Grains-production.RESUMO -O estudo da eficiência no uso de cálcio é inédita em feijão. Portanto, foram objetivos deste trabalho avaliar a variabilidade genética de linhagens de feijão para os caracteres do crescimento da planta e da produtividade de grãos e a acumulação de cálcio nos tecidos da planta em baixa e alta disponibilidade de cálcio e selecionar linhagens de feijão eficientes no uso de cálcio e responsivas a aplicação deste mineral por diferentes índices. Para tanto, 12 linhagens de feijão foram avaliadas em baixa (1,10 mmol L -1 ) e em alta (3,85 mmol L -1 ) concentração de cálcio na solução nutritiva. A linhagem L 15 produziu os maiores valores de massa seca de parte aérea, número de vagens e de grãos por planta, número de grãos por vagem e produtividade de grãos em baixa concentração de cálcio. A acumulação de cálcio nos tecidos foi, em média, maior nas folhas, seguidos pelos caules, vagens e grãos. As linhagens L 175 e L 159 possuem alta concentração de cálcio nos grãos (> 1,1 g kg -1 de MS), independente da concentração de cálcio fornecida às plantas. A linhagem L15 é eficiente no uso de cálcio. As linhagens L 221 e L 159 são responsivas à aplicação de cálcio no ambiente radicular. Palavras-chave:Feijão. Plantas-efeito do cálcio. Grãos-produção.

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Productivity of tomato hybrids due to the application of calcium silicate

Coutinho

Echer

Guimarães

et al. 2020

Rev. Sci. Agr. Paranaensis

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Silicon is a beneficial nutrient for the growth and production of many plant species, including tomatoes. The objective was to evaluate the influence of calcium silicate on the morphophysiological characteristics of tomatoes and the absorption of silicon, calcium, and magnesium. The experiment was conducted in a protected environment from August to December 2017, in a random block design, in a 2 x 5 factor scheme, with four repetitions. The first factor consisted of two hybrids (Ivety and Natalia) and the second factor by doses of calcium silicate (0, 150, 300, 450 and 600 kg ha-1). The fruits were evaluated for number of fruits per plant, longitudinal and transversal diameter, average fruit mass, commercial, non-commercial, and total productivity. The plants were evaluated for number of leaves, stem diameter, plant length, leaf area, membrane integrity damage, lignin content, stem and leaves dry mass, silicon accumulation and content, calcium, and magnesium contents in the leaves and in tomato fruits. The morphometric characteristics of Ivety and Natalia tomato hybrids were not altered by increasing doses of calcium silicate. The increased doses of calcium silicate influenced the non-commercial productivity of the tomato fruits, showing a reduction of this with the increased doses. Calcium silicate influenced differently in each hybrid, and it is worth noting that these results may vary in terms of genetic material and cultivation environment.

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Doses de cálcio no crescimento do feijoeiro cultivado em solução nutritiva, na presença de alumínio

Abstract: Doses de cálcio no crescimento do feijoeiro cultivado em solução nutritiva, na presença de alumínio

Cited by 4 publications

References 6 publications

Rooting of sweet potato seedlings submitted to supplemental calcium and phosphorus nutrition on substrate

Rooting of sweet potato seedlings submitted to supplemental calcium and phosphorus nutrition on substrate

Selection of common bean lines for calcium use efficiency

Productivity of tomato hybrids due to the application of calcium silicate

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