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Master's Dissertation
DOI
https://doi.org/10.11606/D.11.2011.tde-21092011-104432
Document
Author
Full name
Luigi Tancredi Campo Dall'Orto
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
Piracicaba, 2011
Supervisor
Committee
Mello, Simone da Costa (President)
Damatto Junior, Erval Rafael
Suguino, Eduardo
Title in Portuguese
Auxinas e tipos de estacas no enraizamento de Camellia sinensis
Keywords in Portuguese
Camélia
Chá
Estacas (plantas)
Hormônios vegetais
Mudas - Produção
Propagação vegetal
Raiz
Reguladores de crescimento vegetal.
Abstract in Portuguese
Com o objetivo de avaliar a influência de cultivares, tipos de estacas de Camellia sinensis e doses de ácido indolbutírico no enraizamento de estacas, dois experimentos foram conduzidos em casa de vegetação, no delineamento experimental em blocos ao acaso com 16 tratamentos, no esquema fatorial 2 x 2 x 4, ou seja, tipos de estaca (herbácea e lenhosa), cultivares (Camellia sinensis IAC 259 e Yabukita) e quatro doses de ácido indolbutírico (AIB) (0, 30, 60 e 90 mg L-1), com quatro repetições. Cada repetição foi composta por 20 estacas da porção mediana dos ramos das plantas matrizes, coletadas em duas épocas do ano (verão e inverno). As estacas foram cortadas em bisel e mantidas com uma gema e uma folha inteira, com 5 a 7 cm de comprimento. A região basal das estacas recebeu ou não tratamento com ácido indolbutírico (AIB), através da imersão de 2,5 cm da base em solução aquosa do produto por 24 horas. Posteriormente, elas foram colocadas em bandejas de isopor de 72 células contendo vermiculita de grânulos médios. As estacas herbáceas apresentaram maior porcentagem de enraizamento com a aplicação de AIB comparada às estacas lenhosas, sendo que as estacas coletadas no período do verão apresentaram maior porcentagem de enraizamento em menor espaço de tempo, quando comparadas com as estacas coletadas no período do inverno. Estacas da cultivar Yabukita apresentaram maior potencial de enraizamento em relação às estacas da cultivar IAC 259. As concentrações recomendadas de AIB para o enraizamento de estacas de Camellia sinensis variaram de 56 a 83 mg L-1 em função da cultivar.
Title in English
Auxins and types of cuttings on rootings of Camellia sinensis
Keywords in English
Cuttings
Green tea
Growth regulators.
Plant hormone
plant propagation
Root
seedlings Production
Tea
Abstract in English
Aiming to evaluate the influence of Camellia sinensis cultivars, types of cuttings and doses of IBA on rooting, two experiments have been conducted in a green house in the experimental design in blocks randomized with 16 treatments, arranged in a 2 x 2 x 4, that is, cutting types (herbaceous and woody), cultivars (Camellia sinensis 'IAC 259' and 'Yabukita') and four doses of butyric acid (IBA) (0, 30, 60 and 90 mg L -1) with four replications. Each replication consisted of 20 cuttings from the middle portion of the branches from the mother plants, collected in two seasons (summer and winter). The cuttings were cut in bevel and maintained with a bud and a leaf, with 5-7 cm long. The basal cuttings have received or not treatment with indol butyric acid (IBA) by immersion of 2.5 cm from the base in an aqueous solution of the product for 24 hours. Later, they have been placed in trays with 72 cells containing medium granules of vermiculite. Herbaceous cuttings have presented higher percentages of rooting with IBA application compared to hardwood cuttings, and cuttings collected in summer have showed the highest percentage of rooting in the shortest time compared with the cuttings collected in winter. Yabukita cultivars cuttings had higher rooting potential in relation to the IAC 259 cuttings. IBA level to the rooting of Camellia sinensis varied from 56 to 83 mg L-1 according to cultivars
 
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Publishing Date
2011-09-29
 
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