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Ciência Florestal
Centro de Pesquisas Florestais - CEPEF, Departamento de Ciências Florestais - DCFL, Programa de Pós Graduação em Engenharia Florestal - PPGEF
ISSN: 0103-9954
EISSN: 0103-9954
Vol. 24, No. 3, 2014, pp. 553-563
Bioline Code: cf14054
Full paper language: Portuguese
Document type: Research Article
Document available free of charge

Ciência Florestal, Vol. 24, No. 3, 2014, pp. 553-563

 en INFLUENCE OF SUBSTRATE AND CONTAINER VOLUME ON THE QUALITY OF Cabralea canjerana check for this species in other resources (Vell.) Mart. SEEDLINGS IN NURSERY AND FIELD
Gasparin, Ezequiel; de Avila, Angela Luciana; Araujo, Maristela Machado; Filho, Alberto Cargnelutti; Dorneles, Daniele Urrutia & Foltz, Douglas Rodrigo Becker

Abstract

The use of quality seedlings is essential for the establishment of forest plantations, which is achieved through the use of appropriate techniques from the nursery. Thus, this study aimed to investigate the influence of substrate composition and volume of container (tubes) in the growth of seedlings of canjerana ( Cabralea canjerana check for this species in other resources ), in the nursery and field. In nursery, three compositions of peat substrates were evaluated (100% peat, peat + 20% rice hulls (RH) and peat + 40% RH) and combined with two sizes of containers (100 and 280 cm3). Measurements of root collar diameter (DC) and height (H) were performed monthly during 330 days, and the ratio H/DC was also calculated. At 330 days, the root, air and total dry masses and Dickson’s quality index were assessed. The same treatments were evaluated in the field during a period of 360 days and DC and H were measured and H/DC was calculated in every 90-day period. In the nursery and field experiments were carried out with experimental design of random blocks, with four replications. Seedlings of canjerana can be produced in a substrate composed of 60% peat and 40% of rice hulls without harming its growth in the field, with a view that the economy is in nursery. The tube of the tube in the size 280 cm3 only provided superior growth of seedlings during the field phase, where seedlings produced in these containers expressed a better performance in relation to root collar diameter and root dry mass.

Keywords
forest nursery; canjerana; seedling production; tubes

 
 pt INFLUÊNCIA DO SUBSTRATO E DO VOLUME DE RECIPIENTE NA QUALIDADE DAS MUDAS DE Cabralea canjerana check for this species in other resources (Vell.) Mart. EM VIVEIRO E NO CAMPO
Gasparin, Ezequiel; de Avila, Angela Luciana; Araujo, Maristela Machado; Filho, Alberto Cargnelutti; Dorneles, Daniele Urrutia & Foltz, Douglas Rodrigo Becker

Resumo

A utilização de mudas de qualidade é fundamental para o estabelecimento de plantios florestais, o que é alcançado por meio de técnicas adequadas desde a fase de viveiro. Assim, este trabalho teve por objetivo investigar a influência de diferentes composições de substratos e do volume de recipiente (tubetes) no crescimento de mudas de canjerana ( Cabralea canjerana check for this species in other resources ), no viveiro e no campo. Em viveiro foram avaliadas três composições de substratos à base de turfa (100% turfa, turfa + 20% casca de arroz carbonizada (CAC) e turfa + 40% CAC) combinadas com dois tamanhos de tubetes (100 e 280 cm3). Foram realizadas mensalmente, durante 330 dias, mensurações do diâmetro do coleto (DC) e da altura (H), e foi calculada também a relação H/DC. Aos 330 dias foram avaliadas as massas secas radicular, aérea e total e o índice de qualidade de Dickson. Os mesmos tratamentos foram avaliados em campo, durante um período de 360 dias, e foi mensurado a cada 90 dias, o DC e a H, e calculada a H/DC. No viveiro e em campo, os experimentos foram conduzidos com delineamento experimental de blocos ao acaso, com quatro repetições. Mudas de canjerana podem ser produzidas em substrato composto por 60% de turfa e 40% de casca de arroz carbonizada sem prejuízo do seu crescimento em campo, tendo em vista a economia que representa no viveiro. O uso do tubete de 280 cm3 proporcionou somente crescimento superior das mudas na fase de plantio, sendo que o diâmetro do coleto e a massa seca radicular expressaram o melhor desempenho.

Palavras-chave
viveiro florestal; canjerana; produção de mudas; tubete

 
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