Physiological characteristics and yield of ‘Pérola’ pineapple in the semi-arid region

Puiatti, Mário; Santos, Marcelo Rocha dos; Fonseca, Varley Andrade; Arantes, Alessandro de Magalhães; Almeida, J. R.

doi:10.1590/1807-1929/agriambi.v21n12p834-839

Cited by 10 publications

(12 citation statements)

References 18 publications

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“…Em condições de salinidade com água de 3,6 ds m -1 não se verificou as altas correlações do IAF no 13° mês, assim como verificado em condições com água de 0,75 ds m -1 . Possivelmente os efeitos da salinidade, tais como, alterações nos processos de absorção, transporte, assimilação e distribuição de nutrientes na planta (SANTOS; BRITO, 2016) reduziram as características morfológicas das plantas com diminuição da produtividade do abacaxizeiro em condições semiáridas (BRITO et al, 2017) e, desta forma, as correlações foram baiixas.…”

Section: Discussionunclassified

“…Em condições de irrigação com água salina de condutividade elétrica de 3,6 dS m -1 verificou-se que ocorre redução da produtividade do abacaxi quando se compara com água de 0,75 dSm -1 (BRITO et al, 2017). Assim, mensurações morfofisiológicas e suas correlações com as características produtivas da cultura podem ajudar no entendimento e otimização da aplicação com água salina em condições semiáridas.…”

Section: Introductionunclassified

“…Diante do exposto, considerando os poucos estudos relacionados à utilização de água salina cultura abacaxizeiro (BRITO et al, 2017), fazem-se necessárias novas pesquisas que correlacionam características morfofisiológicas e de rendimento na cultura, e com isso, auxiliar no entendimento sobre os fatores produtivos no contexto solo-plantaatmosfera da região semiárida.…”

Section: Introductionunclassified

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Abacaxi ‘Pérola’ Irrigado Com Água Salina: Correlações Ente Morfofisiogia-Produção E Estimativa Da Área Foliar

Puiatti

Almeida

Santos

et al. 2021

NAT

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Fazem-se necessárias novas pesquisas que correlacionem características morfofisiológicas e de rendimento na cultura do abacaxizeiro. Neste contexto, objetivou-se avaliar as correlações ente características morfológicas, fisiológicas e produtivas e estimar a área foliar abacaxi ‘Pérola’ irrigado com água salina. O experimento foi conduzido em blocos casualizados com cinco tratamentos representados pelas lâminas de irrigação: 100% da ETc com água de condutividade elétrica (CEa) de 0,75 dS m-1 e 50, 75, 100 e 125% da ETc com aplicação de água de CEa de 3,6 dS m-1. Foram realizadas determinações das características fisiológicas de: índice de área foliar, índice de clorofila e das características fitotécnicas: altura e diâmetro da planta, número de folhas, comprimento e largura da folha “D”, área foliar total e índice de área foliar e estimou-se a produtividade. Todas variáveis foram correlacionadas às quais geraram uma matriz de correlação entre os parâmetros (índice de área foliar pela barra quântica x índice de área foliar pelo método direto; matrizes com as variáveis água considerada boa e outra com água salina). O índice de área foliar pelo método da barra quântica no 13º mês após o plantio apresenta correlação positiva e alta com a produtividade quando o abacaxizeiro é irrigado com água de condutividade de 0,75 d S m-1. Recomenda-se para ajuste dos valores de índice de área foliar em abacaxizeiro ‘Pérola’ a equação IAF= 0,831397 x IAFmd. Palavras-chave: Ananas comusus L.; índice de área foliar; salinidade. 'Pérola' pineapple irrigated with saline: correlations in morphophisiogy-production and estimation of the foliar area ABSTRACT: Further research is needed to correlate morphophysiological and yield characteristics in the pineapple crop. In this context, the objective was to evaluate the correlations between morphological, physiological and productive characteristics and to estimate the leaf area 'Pérola' pineapple irrigated with saline water. The experiment was conducted in randomized blocks with five treatments represented by irrigation slides: 100% ETc with water of conductivity (ECw) of 0.75 dS m-1 and 50, 75, 100 and 125% of ETc with application of water of ECw of 3.6 dS m-1. The d etermination of the physiological characteristics of: leaf area index, chlorophyll index and phytotechnical characteristics: height and diameter of the plant, number of leaves, length and width of leaf "D", total leaf area and leaf area index were estimated productivity. All variables were correlated to which they generated a correlation matrix between the parameters (leaf area index by the quantum bar x index of leaf area by the direct method, matrices with the variables water considered good and another with saline water). The leaf area index by the quantum bar method in the 13th month after planting shows a positive and high correlation with productivity when the pineapple is irrigated with water of conductivity of 0.75 dS m-1. It is recommended to adjust the values of leaf area index in 'Pérola' pineapple the equation IAF = 0.831397 x IAFmd. Keywords: Ananas comosus L.; leaf area index; salinity.

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Section: Discussionunclassified

Section: Introductionunclassified

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Abacaxi ‘Pérola’ Irrigado Com Água Salina: Correlações Ente Morfofisiogia-Produção E Estimativa Da Área Foliar

Puiatti

Almeida

Santos

et al. 2021

NAT

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“…However, since the pineapple has characteristics of a CAM plant, as shown in this study by the values of Yield, RFd and qp, it is suggested that applying saline water does not have a negative impact on fluorescence characteristics evaluated over the study. Decreases in yield observed when applying saline irrigation water under semiarid conditions (Brito et al, 2017) might be due to other salinity-related effects such as changes in nutrient uptake, transport, assimilation and distribution throughout the plant (Santos and Brito, 2016).…”

Section: Depthsmentioning

confidence: 99%

Photochemical efficiency in pineapple plants under saline water irrigation

et al. 2020

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Studies determining physiological characteristics of field-grown pineapples irrigated with low-quality water are lacking. This work evaluated the photochemical efficiency of ‘Pérola’ pineapple irrigated with saline water in the semiarid region of Bahia, Brazil. The experiment was carried out in randomized blocks with five treatments consisting of the following irrigation depths: 100% of ETc using water with electrical conductivity (ECw) of 0.75 dS m-1; and 50, 75, 100 and 125% of ETc using water with ECw of 3.6 dS m-1. Chlorophyll a fluorescence measurements were made over the course of 13 months using a pulse-modulated fluorometer, in all treatments. Quantum efficiency (Fv/Fm) fluctuated throughout the cycle of the pineapple with values below the ideal, especially at the end of the crop cycle. Quantum yield of photosystem II (Yield), photochemical quenching (qP), non-photochemical quenching (NPQ) and chlorophyll fluorescence decrease ratio (RFd) were not influenced by irrigation depths. Therefore, energy used for photosynthetic processes in pineapple plants is not affected by irrigation using saline water with electrical conductivity of 3.6 dS m-1.

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“…The irrigation intervals used for growing edible pineapple in the open are flexible, and typically range from two to seven days (AZEVEDO et al, 2007;SOUZA et al, 2012b;SANTANA et al, 2013). This flexibility is mainly due to the acid metabolism of crassulaceae (CAM), which affords the crop a high level of water use efficiency and resistance to water deficit (BRITO et al, 2017;CARR, 2012). As they belong to the same species, the ornamental variety could supposedly be irrigated at greater intervals, similar to those of the edible variety.…”

Section: Introductionmentioning

confidence: 99%

Irrigation Intervals in the Production of Ornamental Pineapple in Pots1

et al. 2020

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Information on irrigation management is essential in a production system for the commercial cultivation of ornamental pineapple in pots. As such, this work evaluated the effects of irrigation interval on the growth and production of the crop in pots. The experiment was carried out from 16/07/2015 to 21/05/2016 in a greenhouse located in Fortaleza, in the state of Ceará, Brazil. The experimental design was completely randomised, with five treatments, four replications and four plants per plot. The treatments consisted of irrigation intervals of 2, 4, 6, 8 and 10 days. The plants were grown in one-litre pots, fertilised with slow release fertiliser and subjected to supplementary drip irrigation. The following variables were analysed at the end of the cycle (402 days): number of leaves; length and width of the 'D' leaf; diameter of the rosette; plant height; rate of flowering; length and diameter of the peduncle, syncarp and crown; crown to syncarp ratio; and percentage of commercial plants. The irrigation interval influenced the number of leaves, length of the 'D' leaf, diameter of the rosette, plant height, rate of flowering and percentage of commercial plants. Irrigating every two days resulted in water savings, increased leaf growth and a high rate of flowering, and the greatest percentage of commercial plants. Irrigating at intervals of between four and 10 days, increased water wastage, and reduced leaf growth, the rate of flowering and the percentage of commercial plants. The shortest irrigation interval is therefore the most recommended for cultivation in pots.

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Physiological characteristics and yield of ‘Pérola’ pineapple in the semi-arid region

Cited by 10 publications

References 18 publications

Abacaxi ‘Pérola’ Irrigado Com Água Salina: Correlações Ente Morfofisiogia-Produção E Estimativa Da Área Foliar

Abacaxi ‘Pérola’ Irrigado Com Água Salina: Correlações Ente Morfofisiogia-Produção E Estimativa Da Área Foliar

Photochemical efficiency in pineapple plants under saline water irrigation

Irrigation Intervals in the Production of Ornamental Pineapple in Pots1

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