Influence des éléments minéraux sur la composition de l'ananas

Py, Claude; Silvy, R. J.; Barbier, Mary Kathryn; Huet, Raymond; Haendler, Lucien

doi:10.1007/bf01884054

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Análise E Peso Dos Frutos -Os Dados De Produção E Os Resulta1

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1963

1968

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Cited by 2 publications

(2 citation statements)

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“…Esta constatação está de acordo, em linhas gerais, com as exigências minerais da planta relacionadas na literatura (veja-se, por exemplo, Py et al (1956) .-A acidez dos frutos foi expressa em ácido nítrico o que é procedente uma vez que o mesmo constituí quase 90 por cento da acidez total. Os tratamentos tiveram influência marcante sobre essa característica; a acidez foi bem menor nos tratamentos "completo" e "sem Mg" do que nos outros.…”

Section: Análise E Peso Dos Frutos -Os Dados De Produção E Os Resultaunclassified

Estudos sôbre a Alimentação Mineral do Abacaxí (Ananas sativus) Sch

Haag¹,

Arzolla²,

Mello³

et al. 1963

An. Esc. Super. Agric. Luiz de Queiroz

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Section: Análise E Peso Dos Frutos -Os Dados De Produção E Os Resultaunclassified

Estudos sôbre a Alimentação Mineral do Abacaxí (Ananas sativus) Sch

Haag¹,

Arzolla²,

Mello³

et al. 1963

An. Esc. Super. Agric. Luiz de Queiroz

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“…Nitrogen is used at high levels in pineapple growing all over the world. Many workers, for example Py et al (1956), have shown its dominant effect on growth and yield. Teiwes (1963) quotes Py as reporting an improvement in flesh colour from added nitrogen, and Py (1965) describes marked reduction in fruit acidity from added nitrogen, particularly when applied after flower differentiation.…”

Section: Discussionmentioning

confidence: 99%

Effects of Spacing, Nitrogen and Hormone Treatment on Pineapple in Swaziland

Dodson¹

1968

Ex. Agric.

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Plant populations, nitrogen levels and the use of alpha naphthalene acetic acid (ANA) to reinforce natural flower differentiation were compared in a field experiment at Malkerns in the Swaziland Middleveld. Yield was raised by increasing plant population above 17,000 plants per acre, but reached a maximum at 23,000 plants per acre. Increased yield from denser planting occurred at the expense of fruit size and fruit set, and of sucker and slip production. Hormone counteracted the depressing effect of denser planting on fruit set and denser planting reduced sunburn damage and raised fruit acidity. 400 lb N per acre per crop increased yield over 200 lb N by increasing fruit size in the mother crop, and by increasing fruit size and set in the ratoon. Added nitrogen markedly reduced fruit acidity. ANA improved fruit set and therefore yield, without detrimental effects on fruit shape or quality. There are grounds for small increases in population above 17,000 plants per acre, for the use of ANA to reinforce natural flower differentiation and for the cautious use of the higher level of nitrogen fertilization.

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Influence des éléments minéraux sur la composition de l'ananas

Cited by 2 publications

References 0 publications

Estudos sôbre a Alimentação Mineral do Abacaxí (Ananas sativus) Sch

Estudos sôbre a Alimentação Mineral do Abacaxí (Ananas sativus) Sch

Effects of Spacing, Nitrogen and Hormone Treatment on Pineapple in Swaziland

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