Adubação N-K No Abacaxizeiro ‘Brs Imperial’ - I - Efeito No Desenvolvimento E Na Floração Da Planta

Oliveira, Arlene Maria Gomes; Natale, William; Rosa, Raul Castro Carriello; Junghans, D. T.

doi:10.1590/0100-2945-023/14

Cited by 7 publications

(7 citation statements)

References 4 publications

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“…In the current study, it was observed the emission of 27 leaves from 120 to 300 DAP, and the IMP cultivar produced some 14 leaves between DAT 30 to 150. This agrees with the periodicity of leaf production given by Oliveira et al (2015) for this cultivar.…”

Section: Resultssupporting

confidence: 91%

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Initial Growth of Seedlings of Diferent Pineapple Cultivars in Boa Vista, RR

et al. 2020

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Atualmente, no Brasil, o cultivo do abacaxizeiro, em escala comercial, é quase que exclusivamente com as cultivares Smooth Cayenne e Pérola, no entanto, ambas são suscetíveis a fusariose. A inserção de novas cultivares, com aceitação no mercado de exportação e resistente à fusariose é imprescindível para o sucesso da cultura. O objetivo deste estudo foi avaliar o desenvolvimento vegetativo precoce de cinco cultivares de abacaxi derivadas de micropropagação (BRS Ajubá, BRS Imperial, IAC Fantástico, Pérola e BRS Vitória). As mudas foram produzidas e aclimatizadas no Laboratório de Biotecnologia Biomudas, localizado em Venda Nova do Imigrante – ES, sendo posteriormente transportadas para Boa Vista, RR para implantação do experimento, onde foram conduzidas à casa de vegetação, sob condições climáticas controladas. Utilizou-se o delineamento inteiramente casualizado, em esquema de parcelas subdivididas, sendo cinco cultivares de abacaxizeiro (BRS Ajubá, IAC Fantástico, BRS Imperial, Pérola e BRS Vitória), oriundas de micropropagação, aleatorizadas nas parcelas e cinco épocas de avaliação (30, 60, 90, 120 e 150 dias após o transplantio - DAT) nas subparcelas, com quinze repetições. As variáveis de desenvolvimento vegetativo avaliadas foram: altura da planta, diâmetro da roseta, número de folhas, comprimento e largura de folha ”D”, além da percentagem de sobrevivência, ao final do experimento. As cultivares IAC Fantástico e Pérola apresentaram maior desenvolvimento vegetativo em relação à BRS Ajubá, BRS Imperial e BRS Vitória. As cultivares IAC Fantástico e Pérola, em razão da maior precocidade, podem ser transplantadas para local definitivo a partir de 30 DAT das mudas em casa de vegetação, as demais cultivares requerem 150 DAT. Palavras-chave: Aclimatação de Plantas. Crescimento de Mudas. Cultivo in vitro. Fruticultura. Micropropagação de Plantas. Abstract Currently, the commercial pineapple cultivation in Brazil relies almost exclusively on the cultivars Smooth Cayenne and Pérola. However, both are susceptible to fusariosis. Develment of new cultivars, that are both acceptable to the export market and resistant to fusariosis, is essential for the continued crop success. The objective of this study was to evaluate early vegetative development of five micropropagation-derived pineapple cultivars (BRS Ajubá, BRS Imperial, IAC Fantástico, Pérola and BRS Vitória). Seedlings were produced and acclimatized at the Biomudas Biotechnology Laboratory, Venda Nova do Imigrante, Espírito Santo, Brazil, and were then transported to Boa Vista, Roraima, for the experiments. Here they were placed in a greenhouse under controlled climatic conditions and a completely randomized design implemented, using a subdivided plots scheme, with the micro-porpergation generated seedlings. Location randomized within plots, and evaluation running for five different periods (30, 60, 90, 120 and 150 days after transplant - DAT) in the subplots, with fifteen replicates. Evaluated vegetative development variables weere: plant height, rosette diameter, number of leaves, "D" leaf length and width, as well as percentage survival at experiment end. Cultivars IAC Fantástico and Pérola showed greater vegetative development than BRS Ajubá, BRS Imperial and BRS Vitória. The cultivars IAC Fantástico and Pérola, due to their greater precocity, can be transplanted to a final growth location 30 days after seedling transplantion into a greenhouse, while other cultivars require 150 DAT occur. Keywords: Plants Acclimation . Seedlings Growth. In vitro Cultivation. Fruit Growing. Pineapple Micropropagation .

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Section: Resultssupporting

confidence: 91%

“…In studies of pineapple cv. IMP, Oliveira et al (2015) found that more leaves were producted between 180 and cultivar FANT benefited from extended post-transplantation greenhouse time, as leaves initially measuring 15 cm, had doubled their length by 150 DAP, to reach a mean of 30.36 cm. This contrasts with results for cv.…”

Section: Resultsmentioning

confidence: 99%

Initial Growth of Seedlings of Diferent Pineapple Cultivars in Boa Vista, RR

et al. 2020

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“…There was correlation of the fruit mass with crown of 0.55 and 0.63 in relation to the length and fresh mass of leaf D, respectively. Similar results were found by Oliveira et al (2015b) where for cv. Imperial they reported correlation between the mass of the fruit and the mass of leaf D, being 56 g the maximum mass observed in leaf D. For this mass, the fruit mass of 1,096 g was estimated.…”

Section: /9supporting

confidence: 90%

“…Studying the Imperial cultivar in a hydroponic system, Ramos et al (2013) verified leaf length D of 66.2 cm with the complete solution, a value close to this study. Studying the same cultivar, under dry conditions, Oliveira et al (2015b) reported mean leaf D length of 75.15 cm but found no effect of N and K doses.…”

Section: Resultsmentioning

confidence: 92%

“…Vitória, when the fresh mass of leaf D is equal or greater than 70 g or diameter of the minimum stem of 8.5 cm, with a fruit mass equal or greater than 1.2 kg plant -1 . Some authors such as Silva et al (2012); Caetano et al (2013) and Rodrigues et al (2013) reported an effect on the dry and fresh mass of leaf D, using fertilizations with N and/ or K. Oliveira et al (2015b), under dry conditions, verified maximum leaf mass D in 'Imperial' pineapple of 56 g, obtaining fruits of 1,086 g, with the application of 364 kg ha -1 of N and 600 kg ha -1 of K 2 O, and recommended a minimum mass of 44 g of leaf D for the accomplishment of floral induction in 'Imperial' pineapple to obtain fruits with mass greater or equal to 900 g, and to obtain average (1,200 g) and large fruits (1,800 g), it is necessary to have fresh sheet D mass of 62 and 99 g, respectively. Guarçoni & Ventura (2011) verified in cv.…”

Section: Resultsmentioning

confidence: 99%

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Growth of leaf D and productivity of ‘Imperial’ pineapple as a function of nitrogen and potassium fertilization

Rios

Mendonça

Fernandes

et al. 2018

Agraria

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The cv. Imperial has great commercial potential. Its expansion depends, to a large extent, on the adjustment to the fertilization recommendations proposed in the fertilization and liming recommendation bulletins of the main producing states, in order to have adequate nutritional management. The objective of this study was to verify the growth of leaf D and the productivity of 'Imperial' pineapple cultivated under the presence and levels of fertilization of N and K. The experimental design was a randomized complete block with three replicates and treatments were arranged in a factorial scheme according to the Plan Plueba III matrix, with five doses of N (15; 90; 150; 210 and 285 kg ha -1 ) and five doses of K (21.6, 129.6, 216.0, 302.4 and 410.4 kg ha -1 ). Data were submitted to analysis of variance. To evaluate the effect of the interaction of N and K doses and days after planting, the response surface technique was used.

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Adubação N-K No Abacaxizeiro ‘Brs Imperial’ – Ii Efeito No Solo, Na Nutrição Da Planta E Na Produção

et al. 2015

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RESUMO-o abacaxizeiro 'BRS imperial' é uma cultivar resistente à fusariose, apresenta frutos saborosos, mas ainda é pouco conhecido dos fruticultores. este trabalho teve como objetivo avaliar o efeito de diferentes doses de n e K nas características químicas do solo, nos teores foliares de nutrientes e nas variáveis de produção de um cultivo de 'BRS imperial'. o experimento foi instalado no espaçamento 0,90 x 0,40 x 0,40 m, com quatro doses de n (0; 160; 320 e 550 kg ha NK FERTILIZATION IN 'BRS IMPERIAL' PINEAPPLE -II -VARIABLE OF PLANT PRODUCTIONABSTRACT -the 'BRS imperial' pineapple is a resistant cultivar to Fusarium and it presents tasty fruit, but it is still little known by farmers. This study aimed to evaluate the influence of N and K fertilization on chemical soil characteristics, leaves nutrient contents and yield of 'BRS imperial' plants. the experiment was installed at a 0.90 x 0.40 x 0.40 m spacing and four doses of n (0, 160, 320, 550 kg ha -1 ) and K 2 o (0, 240, 480 and 600 kg ha -1 ) were tested in a completely randomized blocks design with five replicates, in a 4 x 4 complete factorial scheme. Chemical analyzes were made of leaves and soil and measured the production variables. the cultivation of pineapple in a complete absence of n and K fertilization resulted in lower ph, K + , Ca 2+ and Mg 2+ levels of soil in relation to the initial content. even at the highest dose of K 2 o, the K level in the soil was low after the pineapple cultivation. the maximum n and K foliar content, estimated on the higher doses, were 13 g kg -1 and 32 g kg -1 , respectively. Crop variables showed significance for N levels in all evaluations, while the rates of K 2 O influenced only the length/diameter fruit relation. In a quadratic regression, n doses showed 1,086 g on fruit weight with crown at 365 kg ha -1 of n and a yield of 42 t ha -1 .

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Adubação N-K No Abacaxizeiro ‘Brs Imperial’ - I - Efeito No Desenvolvimento E Na Floração Da Planta

Cited by 7 publications

References 4 publications

Initial Growth of Seedlings of Diferent Pineapple Cultivars in Boa Vista, RR

Initial Growth of Seedlings of Diferent Pineapple Cultivars in Boa Vista, RR

Growth of leaf D and productivity of ‘Imperial’ pineapple as a function of nitrogen and potassium fertilization

Adubação N-K No Abacaxizeiro ‘Brs Imperial’ – Ii Efeito No Solo, Na Nutrição Da Planta E Na Produção

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