1998
DOI: 10.1590/s0100-06831998000300008
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Avaliação da atividade "in vivo" da fosfatase ácida e do crescimento de progênies de pupunheira cultivadas em duas doses de nitrogênio e fósforo

Abstract: 6,18 (G3) a 10,10 (G1) µmol h -1 g -1 ), indicando que esses dois fatores devem ser levados em conta em estudos dessa natureza. A atividade da fosfatase ácida apresentou correlação negativa com as características que avaliam o crescimento (biomassa aérea e radicular) e a produção de palmito (peso e diâmetro) das plantas estudadas, não se correlacionando com os teores de fósforo no solo ou no tecido foliar. Termos de indexação:Bactris gasipaes, adubação, biomassa, pupunha.

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Cited by 11 publications
(5 citation statements)
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“…This author observed in tomatoes, in which the unbalance of 15 nutrients was induced, that only P-deficiency caused an increase in leaf acid phosphatase, hence the suggestion that this enzyme might be used to detect P deficiency in these plants (Besford, 1979c). Several reports in the literature indicate that the acid phosphatase activity is correlated to P-concentrations in tissues of several plant species: Cucumis sativus L (Besford, 1978), Licopersicon esculentum Mill (Besford, 1979a;1979b), Triticum aestivum L (McLachlan, 1982), Oryza sativa L (Zaini & Mercado, 1985), Phaseolus vulgaris L. (Breseghelo et al, 1992), Saccharum officinarum L (Silva & Basso, 1993), Phaseolus vulgaris L and Vigna unguiculata L Walp (Fernandez & Ascencio, 1994), Cajanus cajan L and Gossypium hirsutum L , and Bactris gasipaes Kunth (Bovi et al, 1998). However, all of these works tested P doses, without taking into account the acid phosphatase activity, P-uptake and use efficiency for comparison of cultivars and or species, in only one soil fertility situation in terms of soil P availability.…”
Section: Introductionmentioning
confidence: 99%
“…This author observed in tomatoes, in which the unbalance of 15 nutrients was induced, that only P-deficiency caused an increase in leaf acid phosphatase, hence the suggestion that this enzyme might be used to detect P deficiency in these plants (Besford, 1979c). Several reports in the literature indicate that the acid phosphatase activity is correlated to P-concentrations in tissues of several plant species: Cucumis sativus L (Besford, 1978), Licopersicon esculentum Mill (Besford, 1979a;1979b), Triticum aestivum L (McLachlan, 1982), Oryza sativa L (Zaini & Mercado, 1985), Phaseolus vulgaris L. (Breseghelo et al, 1992), Saccharum officinarum L (Silva & Basso, 1993), Phaseolus vulgaris L and Vigna unguiculata L Walp (Fernandez & Ascencio, 1994), Cajanus cajan L and Gossypium hirsutum L , and Bactris gasipaes Kunth (Bovi et al, 1998). However, all of these works tested P doses, without taking into account the acid phosphatase activity, P-uptake and use efficiency for comparison of cultivars and or species, in only one soil fertility situation in terms of soil P availability.…”
Section: Introductionmentioning
confidence: 99%
“…O número de folhas vivas, verdes ou funcionais está diretamente relacionado com o número de folhas internas e, portanto, com a produção de palmito (Bovi et al, 1988;1992;Clement et ai, 1988). O número de folhas reflete bem o efeito de estresse hídrico e adubação (Bovi, 1998;Bovi et al, 1988Bovi et al, , 1998Ramos et ai, 1999). O número de perfilhos por planta ao longo do ciclo da cultura é fundamental, pois avalia a capacidade de regeneração da planta, sendo ainda muito afetado pela densidade do plantio (Moreira Gomes et ai, 1988).…”
Section: Análise De Crescimentounclassified
“…A mais comum é pela massa fresca do produto obtido, expressa por planta (g/planta) e por área e por ano (kg/ha/ano). A produção é muito influenciada por deficiência hídrica (Bovi, 1998;Miranda et al, 1998), densidade e adubação (Bovi, 1999;Yuyama, 1997). Alguns resultados tem sido apresentados em número de palmitos e seu peso bruto (e.g., Zamora, 1985).…”
Section: Análise Da Produçãounclassified
“…Phosphorus levels may influence several biochemical processes, including acid phosphatase activity (E.C.3.1.3.2) (Besford, 1979;Tanksley, 1983;Kuwahara and Souza, 2009). The activity of the enzyme is increased when the plant is deficient in P (Silva and Basso, 1993;Bovi et al, 1998) and could therefore be used to diagnose low P levels. However, using acid phosphatase activity as a biochemical indicator of P nutritional status in sugarcane has not been well studied.…”
Section: Introductionmentioning
confidence: 99%