Cultivo do tomateiro sob diferentes espaçamentos entre plantas e diferentes níveis de desfolha das folhas basais

Hachmann, Tiago Luan; Echer, Márcia de Moraes; Dalastra, Graciela Maiara; Vasconcelos, Edmar Soares de; Guimarães, Vandeir Francisco

doi:10.1590/1678-4499.0163

Cited by 19 publications

(17 citation statements)

References 12 publications

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“…Even though both cultivars produced small sized fruits, the intensification of the defoliation before the formation of the fruits impaired fruit yield, but this effect was more pronounced for the Cherry cultivar, whose mean fruit size was significantly higher than that of the Grape cultivar regardless of the defoliation level adopted. Marcano (1995) observed the same effect of reducing fruit yield for salad tomatoes, but other authors, including Hachmann, Echer, Dalastra, Vasconcelos, and Guimarães (2014), emphasize that defoliation in salad tomato type can favor the production of the culture.…”

Section: Resultsmentioning

confidence: 88%

<b>Trough and pot crop systems with leaching recirculation and defoliation levels for mini tomatoes

et al. 2018

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ABSTRACT. The use of raw rice husk as substrate allows the use of crop systems that promote the recirculation of leachate in long crop cycles. Mini tomatoes present relatively low demand for photoassimilates. Thus, partial defoliation of the sympodium could benefit the crop without damage to the production or quality of the fruits. The objective of this work was to evaluate the plant growth, fruit yield and fruit quality of Cherry Hybrid Wanda and Grape Hybrid Dolcetto mini tomatoes cultivated in two recirculation crop systems (pots and troughs), using raw rice husk as substrate, under three defoliation conditions (without defoliation, removal of one and two leaves of the sympodium). The Cherry cultivar showed higher plant growth, fruit yield and mean fruit size. The Grape cultivar produced fruits with higher sugar concentration. For the Grape cultivar, the removal of one sympodium leaf did not affect the plant responses. However, for the Cherry cultivar, it was necessary to maintain the complete sympodium. The trough cultivation system improved plant growth and yield, whereas the pot system increased fruit sugar concentration.Keywords: cherry, grape, growth, Solanum lycopersicum, rice husk, substrate.Sistemas de cultivo em calhas x vasos com recirculação do lixiviado e níveis de desfolha para minitomates RESUMO. O emprego de casca de arroz in natura como substrato permite empregar sistemas de cultivo que promovam a reutilização do lixiviado em ciclos longos de produção, sendo importante estudar o manejo fitotécnico da cultura nesta condição. Os minitomates apresentam demanda de fotoassimilados relativamente pequena. Assim, a desfolha parcial do simpódio poderia beneficiar a cultura sem prejuízos à produção e qualidade dos frutos. O objetivo do trabalho foi avaliar o crescimento, o comportamento produtivo e a qualidade de frutos de minitomateiro Cereja Híbrido Wanda e Grape Híbrido Dolcetto em dois sistemas fechados de cultivo (vasos e calhas), empregando casca de arroz in natura como substrato, sob três condições de desfolha (sem desfolha, retirada de uma e duas folhas do simpódio). A cultivar Cereja apresentou maior crescimento da planta, produção e tamanho médio de frutos. A cultivar Grape apresentou frutos com maior concentração de açúcares. Para cultivar Grape, a retirada de uma folha do simpódio não afetou as respostas produtivas. Entretanto, para cultivar Cereja é necessária a manutenção do simpódio completo. O sistema de cultivo em calhas melhora o crescimento e eleva as respostas produtivas, enquanto que o sistema de vasos aumenta a concentração de açúcares dos frutos.

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Section: Resultsmentioning

confidence: 88%

<b>Trough and pot crop systems with leaching recirculation and defoliation levels for mini tomatoes

et al. 2018

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“…On the other hand, for the foliar sprays, the highest LA value (531.14 cm 2 ) was obtained at a dose of 30%, and then it decreased with increasing doses. According to Larcher (2000) and Hachmann et al (2014), the larger the leaf area, the greater the active photosynthetic surface available and, therefore, the greater photoassimilate production available for fruit development.…”

Section: Resultsmentioning

confidence: 99%

Effect of aqueous extracts of Brachiaria decumbens on the development of ornamental pepper

Krause¹,

Meneghelli²,

Meneghelli³

et al. 2020

Agron. colomb.

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The use of natural plant growth promoters can be an effective, sustainable, and low-cost alternative to reduce input costs for the production of ornamental pepper. Thus, the objective of this study was to evaluate the effect of Brachiaria decumbens aqueous extract on the growth of ornamental pepper (Capsicum frutescens). The experiment was carried out in the Plant Nursery sector of the Federal Institute of Espirito Santo (IFES), located in the municipality of Santa Teresa, in the Serrana region of theEspirito Santo State (Brazil). The study was conducted using a randomized block design (RBD) with four replicates in a 4×2 factorial scheme with four doses of the Brachiaria decumbens extract (0, 50, 75 and 100%) and two application methods (edaphic application or foliar sprays). The number of days to flowering, plant height, leaf number, fruit number, leaf area, fruit, root, shoot, and total dry mass were determined. According to the results, the variables number of fruits and root dry mass had no significant effect on the interaction, with the best results found with the edaphic application when compared to the foliar sprays. When considering interaction, the application of 100% of the extract reduced the number of days to floweringfor both edaphic application and foliar sprays. For growth variables, this same dose promoted the best results for most of the variables. Based on the results, the edaphic application of B. decumbens at 100% dosage is recommended to reduce the number of days to flowering and promote better development of ornamental pepper.

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“…O que resultou de maior competição por água, luz e nutrientes. De acordo com Hachmann et al (2014) em plantios adensados há maior sobreposição e sombreamento das folhas, ocasionando alta competição por luz, o que diminui a eficiência fotossintética da planta. Hachmann et al (2017) avaliaram as características produtivas da chicória da catalogna, cultivada em diferentes espaçamentos e observaram que os menores valores de massa fresca e seca da parte aérea foram obtidos com espaçamentos mais adensados.…”

Section: Resultsunclassified

Características Agronômicas Do Rabanete Em Função Do Espaçamento Entre Plantas E Entre Linhas

Luz¹,

Martins²,

Ferreira³

et al. 2017

Agrarian

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RESUMOA cultura do rabanete (Raphanus sativus L.) possui ciclo curto, sendo cultivada principalmente pela agricultura familiar. Desta forma, se faz necessário definir o espaçamento ideal que otimize a produção e o melhor aproveitamento da área de cultivo da cultura, e assim garantir maior rentabilidade ao pequeno produtor. Diante disso, objetivou-se com este trabalho avaliar o desempenho agronômico de plantas de rabanete cultivadas em diferentes espaçamentos entre linhas e entre plantas. O experimento foi conduzido na Universidade Federal de Rondônia. O delineamento utilizado foi em blocos casualizados em esquema fatorial 2x2, com cinco repetições. O primeiro fator foi constituído de dois espaçamentos entre plantas (0,05 e 0,10m) e o segundo de dois espaçamentos entre linhas de plantio (0,10 e 0,20m). Os parâmetros avaliados foram altura da planta, diâmetro da raiz tuberosa (transversal e longitudinal) massa fresca da parte aérea e raiz, massa seca da parte aérea e da raiz tuberosa. O espaçamento de 0,05m entre plantas e 0,20m entre linhas proporcionaram as melhores características agronômicas. PALAVRAS-CHAVE: densidade, espaçamento ideal, Raphanus sativus L. AGRONOMIC CHARACTERISTICS OF RABANET IN THE FUNCTION OF PLANT SPACE AND BETWEEN LINESABSTRACT The radish (Raphanus sativus L.) culture has a short cycle, being cultivated mainly by family farming. In this way, it is necessary to define the ideal spacing that optimizes the production and the best use of the area of cultivation of the crop, and thus guarantee a greater profitability to the small producer.The objective of this work was to evaluate the agronomic performance of radish plants grown at different

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Cultivo do tomateiro sob diferentes espaçamentos entre plantas e diferentes níveis de desfolha das folhas basais

Cited by 19 publications

References 12 publications

<b>Trough and pot crop systems with leaching recirculation and defoliation levels for mini tomatoes

<b>Trough and pot crop systems with leaching recirculation and defoliation levels for mini tomatoes

Effect of aqueous extracts of Brachiaria decumbens on the development of ornamental pepper

Características Agronômicas Do Rabanete Em Função Do Espaçamento Entre Plantas E Entre Linhas

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