Estimation of total leaf area and D leaf area of pineapple from biometric characteristics

Santos, Marlúcia Pereira; Maia, Victor Martins; Oliveira, Fernanda Soares; Pegoraro, Rodinei Facco; Santos, Silvânio Rodrigues dos; Aspiazú, Ignácio

doi:10.1590/0100-29452018556

Cited by 7 publications

(5 citation statements)

References 13 publications

(16 reference statements)

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“…As correlações altas e positivas entre IAF aos 13 meses após o plantio com a produtividade e as características morfológicas dos frutos, tanto pela barra quântica quanto pelo método direto, mostram-se pertinentes e permitem inferências relacionadas à aferição da fixação de carbono, danos bióticos e abióticos, além de correlacionar-se com a produtividade (SANTOS et al, 2018). Possivelmente, no 13° os valores de IAF indicam a capacidade das folhas manterem a atividade fotossintética por maior período com maior acúmulo de matéria seca pelo abacaxizeiro (MALÉZIEUX, 1993) e, assim, justificam as correlações com as características produtivas.…”

Section: Discussionunclassified

“…A superfície fotossintética aumenta com o desenvolvimento da área foliar, resultando também em maior acúmulo de matéria seca na planta (SANTOS et al, 2018). Portanto, cinto e nove meses após o plantio o tamanho e o acúmulo de fotoassimilados pelas folhas do abacaxizeiro ainda são incipientes e, desta, forma justifica-se a baixa correlação com os dados de produtividade.…”

Section: Discussionunclassified

“…As características morfológicas das folhas do abacaxizeiro dificultam o cálculo da área foliar e as equações são uma alternativa para estimar a área foliar das plantas de abacaxi 'Pérola' de maneira simples, rápida, confiável e barata (SANTOS et al, 2018) e mostram a relevância dos resultados do presente estudo.…”

Section: Discussionunclassified

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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

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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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“…After the beginning of application of the treatments, we took readings every month of the following vegetative characteristics: plant height, from the soil surface to the very top of the plant with the aid of a measuring tape; shoot diameter, measured with the aid of a flexible plastic measuring tape; number of leaves, determined by counting the total number of leaves; length and width of the 'D' leaf, measured with the aid of a ruler, from the base of the leaf to its tip. Based on length and width, leaf area "D" was determined (equation 2) and then the total leaf area of the plant (equation 3) according to Santos et al (2018).…”

Section: Methodsmentioning

confidence: 99%

Irrigation with saline water on pineapple grown in the semi-arid of bahia state

Puiatti¹,

Fonseca²,

Santos³

et al. 2019

Biosci. J.

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We aimed to evaluate the effects of different irrigation depths with saline water on growth, yield, water-use efficiency, and fruit quality of ‘Pérola’ pineapple plant grown in the semi-arid of Bahia state. The experiment was carried out in a randomized block design with five treatments which represented the irrigation depths: 100% of crop evapotranspiration (ETc) with irrigation water of 0.75 dS m-1 in electrical conductivity (ECiw); and 50, 75,100, and 125% of ETc with water of 3.6 dS m-1 in ECiw. Pineapples were grown under field conditions watered by drip irrigation in which pressure compensating emitters had 8 L h-1 flow rate. We observed that the irrigation depth 100% of ETc with water of 0.75 and 3.6 dS m-1 in ECiw provides higher pineapple yields under the semi-arid conditions of this study, and the chemical quality of the fruits are up to commercial standards, except when applying 125% of ETc with water of 3.6 dS m-1 in ECiw.

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“…In the period of pineapple floral induction, the cultivar 'Smooth Cayenne' presented higher DFM (75.6 g), followed by cultivars 'Pérola','IAC Fantástico',and 'Vitória' (68,6,63,9,55.2,and 50 g MFD,respectively), indicating greater yield potential for the cultivar 'Smooth Cayenne' since plants with higher DFM produce larger fruits (Vileta et al, 2015;Santos et al, 2018b).…”

Section: Pineapple Productionmentioning

confidence: 99%

Can sewage sludge increase soil fertility and replace inorganic fertilizers for pineapple production?

Mota

Pegoraro²,

Maia

et al. 2021

RSD

Self Cite

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Sewage sludge from treatment plants is an important source of N and organic matter for agriculture. The objective of this study was to analyze the effect of sewage sludge and mineral fertilization on the soil chemical properties and production of five pineapple cultivars. The study was conducted in 2 x 5 factorial scheme, consisting of two different fertilizers (sewage sludge and mineral fertilizers), combined with five pineapple cultivars (‘Pérola’, ‘Vitória’, ‘Smooth Cayenne’, ‘MD-2’, and ‘IAC Fantástico’). Sewage sludge fertilization favoured soil fertility by promoting a decrease in the pH and increase in the content of soil organic matter, phosphorus, calcium, iron, and zinc, compared to soil with mineral fertilization. In pineapple plants, sewage sludge fertilization provided statistically similar yields and physic chemical fruit characteristics compared to mineral fertilization. Among cultivars, the ‘Smooth Cayenne’ presented the highest yield (125 t ha-1), followed by cultivars ‘MD-2’ and ‘IAC Fantástico’, with intermediate yields of 98 and 90 t ha-1. Cultivars ‘Pérola’ and ‘Vitória’ presented lower yields. In this context, it was observed that sewage sludge can be used in pineapple cultivars, as an alternative source of nutrients to partial replaces inorganic fertilization.

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Estimation of total leaf area and D leaf area of pineapple from biometric characteristics

Cited by 7 publications

References 13 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

Irrigation with saline water on pineapple grown in the semi-arid of bahia state

Can sewage sludge increase soil fertility and replace inorganic fertilizers for pineapple production?

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