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Influência do intervalo entre cortes sobre a produção de biomassa de duas espécies de capim limão Influence of the interval between cuts on biomass yield of two lemon grass species

By André May, Odair A. Bovi, Nilson B. Maia, Andrea RA de Moraes, Mariane Q Pinheiro and Marcelo de Mario

Abstract

Foi estudada a influência do intervalo entre cortes na produção de massa seca da parte aérea de duas espécies de capim limão. O experimento foi realizado no Instituto Agronômico, em Campinas-SP, 04 de junho/05 a 28 de agosto/06. O delineamento experimental utilizado foi em blocos ao acaso, com três repetições, com os tratamentos em esquema fatorial 2 x 4, sendo duas espécies (C. citratus e C. flexuosus) e quatro intervalos entre cortes (40; 60; 80 e 100 dias). Para C. flexuosus, maiores intervalos entre cortes proporcionaram maior massa seca acumulada ao longo do ciclo de cultivo, partindo de 329,04 para 704,16 g planta-1 de massa seca acumulada da parte aérea, para intervalos entre cortes de 40 e 100 dias, respectivamente. A espécie C. citratus apresentou resposta linear decrescente da massa seca acumulada da parte aérea quanto maior o intervalo entre cortes utilizado, produzindo 238,68 g planta-1 utilizando intervalo entre cortes de 40 dias.<br>The aim of this study was to analyze the influence of the interval between cuts on the dry mass yield of the aerial part of two lemon grass species. The experiment was conducted at Agronomical Institute (IAC), in Campinas - SP, from June 4th, 2005 through August 28th, 2006. The experiment was carried out in a completely randomized block design, with three replications, and the treatments in a 2 x 4 factorial design, corresponding two species (C. citratus and C. flexuosus) and four intervals between cuts (40; 60; 80 and 100 days). For C. flexuosus, longer intervals between cuts generated more dry mass accumulated throughout the cultivation cycle, beginning on 329,04 to 704,16 g plant-1 of accumulated dry mass of the aerial part, for intervals between cuts of 40 and 100 days, respectively. The C. citratus species showed a decrease in its linear response for the accumulated dry mass of the aerial part the longer the interval between cuts was, yielding 238,68 g plant-1 for a 40 day interval between cuts

Topics: Cymbopogon citratus, Cymbopogon flexuosus, manejo cultural, planta medicinal, planta aromática, Cymbopogon citratus, Cymbopogon flexuosus, crop management, medicinal plant, aromatic plant, Plant culture, SB1-1110, Agriculture, S, DOAJ:Plant Sciences, DOAJ:Agriculture and Food Sciences
Publisher: Associação Brasileira de Olericultura
Year: 2008
DOI identifier: 10.1590/S0102-05362008000300017
OAI identifier: oai:doaj.org/article:42134b47fa824308be668713cefcfd6c
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