Ação de fitorreguladores no crescimento da erva-cidreira-brasileira
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Data
2002-03-01
Autores
Stefanini, Mirian Baptista [UNESP]
Rodrigues, Selma Dzimidas [UNESP]
Ming, Lin Chau [UNESP]
Título da Revista
ISSN da Revista
Título de Volume
Editor
Associação Brasileira de Horticultura
Resumo
Lippia alba, espécie brasileira da família Verbenaceae, é plantada e usada em todo o Brasil por suas atividades farmacológicas como analgésica, antiespasmódica, calmante, sedativa e citostática. Popularmente a Lippia é denominada de alecrim, cidreira falsa ou falsa melissa. O trabalho visou testar o efeito das aplicações de GA3, ethephon e CCC sobre o crescimento de Lippia alba (Mill.) N.E.Br. - Verbenaceae, em diferentes épocas do ano. O experimento foi instalado na Fazenda São Manuel, pertencente à UNESP em Botucatu, de dezembro/95 a dezembro/96. O mesmo consistiu de sete tratamentos e três repetições em blocos inteiramente casualizados, com os tratamentos aplicados nas parcelas e as colheitas nas subparcelas. Os tratamentos incluíram o controle, ácido giberélico (GA3 50 e 100 mg.L-1), ácido 2-cloroetil-fosfônico (ethephon- 100 e 200 mg.L-1) e cloreto de 2-cloroetil-trimetil amônio (CCC 1000 e 2000 mg.L-1). Os reguladores vegetais foram aplicados em duas épocas, aos quarenta e cem dias da implantação do experimento no campo e o crescimento das plantas foi avaliado em seis épocas. Após a primeira aplicação as plantas foram coletadas em intervalos de 14 dias. Os fitorreguladores GA3, e CCC tenderam a elevar os resultados das características, matéria seca de caule, folhas, flores e total, porém sempre permaneceram menores ou iguais ao controle.
Lippia alba, a Brazilian species, from the Verbenaceae family, is planted and used throughout Brazil in traditional medicine such as analgesic, calminative and sedative, using aqueous extract of leaves. This study investigated the effect of GA3, ethephon and CCC spray solutions on the growth of L. alba at different times of the year. The experiment was carried out at São Manuel Experimental Station from the Universidade Estadual Paulista in Botucatu, Brazil, from December 1995 to December 1996. The experiment consisted of 7 treatments with three replications in complete randomized blocks, and the treatment was applied to the plots and at harvest time, to the subplots. The treatments included control, giberellic acid (GA3 50 and 100 mg.L-1), 2-cloroetil-fosfonic acid (ethephon 100 and 200 mg.L-1) and 2-cloroetil-trimetil ammonium chloride (CCC- 1000 and 2000 mg.L-1). The vegetable regulators were applied at two different periods, forty and a hundred days after establishment of the experiment, and the growth of the plants was evaluated six times. After the first application, the plants were collected at intervals of 14 days. Plant growth regulators GA3, and CCC tended to elevate the results of the evaluated parameters (dry matter of stem, leaves, flowers and total) but the results always stayed smaller or equal to the control.
Lippia alba, a Brazilian species, from the Verbenaceae family, is planted and used throughout Brazil in traditional medicine such as analgesic, calminative and sedative, using aqueous extract of leaves. This study investigated the effect of GA3, ethephon and CCC spray solutions on the growth of L. alba at different times of the year. The experiment was carried out at São Manuel Experimental Station from the Universidade Estadual Paulista in Botucatu, Brazil, from December 1995 to December 1996. The experiment consisted of 7 treatments with three replications in complete randomized blocks, and the treatment was applied to the plots and at harvest time, to the subplots. The treatments included control, giberellic acid (GA3 50 and 100 mg.L-1), 2-cloroetil-fosfonic acid (ethephon 100 and 200 mg.L-1) and 2-cloroetil-trimetil ammonium chloride (CCC- 1000 and 2000 mg.L-1). The vegetable regulators were applied at two different periods, forty and a hundred days after establishment of the experiment, and the growth of the plants was evaluated six times. After the first application, the plants were collected at intervals of 14 days. Plant growth regulators GA3, and CCC tended to elevate the results of the evaluated parameters (dry matter of stem, leaves, flowers and total) but the results always stayed smaller or equal to the control.
Descrição
Palavras-chave
Lippia alba, Verbenaceae, ácido giberélico, ethephon, CCC, plantas medicinais, Lippia alba, gibberellic acid, ethephon, CCC, medicinal plants
Como citar
Horticultura Brasileira. Associação Brasileira de Horticultura, v. 20, n. 1, p. 18-23, 2002.