Diferentes substratos na produção de porta-enxertos de caramboleira

Objetivou-se com o presente estudo verificar a influência de diferentes substratos na produção de porta-enxertos de caramboleira. As sementes foram extraídas de frutos maduros de carambola cultivar Malásia, lavadas em água corrente e semeadas em bandejas de poliestireno (72 células, capacidade de 12...

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Veröffentlicht in:Ciência e agrotecnologia 2007-04, Vol.31 (2), p.312-316, Article 312
Hauptverfasser: Bastos, Débora Costa, Pio, Rafael, Scarpare Filho, João Alexio, Libardi, Marília Neubern, Almeida, Luis Felipe Paes de, Entelmann, Fábio Albuquerque
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container_issue 2
container_start_page 312
container_title Ciência e agrotecnologia
container_volume 31
creator Bastos, Débora Costa
Pio, Rafael
Scarpare Filho, João Alexio
Libardi, Marília Neubern
Almeida, Luis Felipe Paes de
Entelmann, Fábio Albuquerque
description Objetivou-se com o presente estudo verificar a influência de diferentes substratos na produção de porta-enxertos de caramboleira. As sementes foram extraídas de frutos maduros de carambola cultivar Malásia, lavadas em água corrente e semeadas em bandejas de poliestireno (72 células, capacidade de 120 cm³/célula), contendo os seguintes substratos: vermiculita, Plantmax®, Rendmax®, terra de barranco, areia e terra + areia (1:1, 2:1 e 1:2 v/v). Em seguida, as bandejas foram colocadas em ambiente coberto por sombrite com 50 % de luminosidade, efetuando-se regas manuais diárias. Após 130 dias da semeadura, foram coletados os seguintes dados biométricos: porcentagem de plantas vivas, altura das plântulas, comprimento das raízes e número de folhas. Concluiu-se que a mistura terra + areia (1:1 v/v) foi mais eficiente na germinação de sementes e formação inicial de porta-enxertos de caramboleira. The aim of the present research was to verify the influence of different substrates in seedling production of star fruit tree rootstocks. Seeds were taken from ripe fruits of sweet star fruit, washed in tap water and sowed in polystyrene trays (72 cells with volume capacity of 120 cm³/cell), containing the following substrates: vermiculite, Plantmax®, Rendmax®, soil, sand, and sand + soil mixture (1:1, 2:1 and 1:2 v/v). After that, the trays were placed inside a lath house covered by 50 % brightness shade, and manually watered daily. After 130 days of sowing, the following biometric data were collected: percentage of live plants, length of sprouts and roots, and number of leaves. It was concluded that the mixture soil + sand (1:1 v/v) was most efficient in seed germination and early formation of star fruit rootstocks.
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title Diferentes substratos na produção de porta-enxertos de caramboleira
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