Épocas de plantio, idades e horários de colheita na produção e qualidade do óleo essencial de Lippia alba (Mill.) N.E. Br., quimiotipo limoneno-carvona
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Data
2003-11
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Universidade Estadual Paulista (Unesp)
Resumo
Este trabalho foi elaborado visando determinar a influência da idade e horário de colheita para a erva-cidreira brasileira, Lippia alba (Mill.) N. E. Br., quimiotipo carvona-limoneno, sobre a produção de massa foliar, rendimento e composição do óleo essencial, bem como os teores e quantidades extraídas dos macronutrientes. O trabalho constou de dois experimentos, no primeiro testou-se diferentes idades de colheita em quatro épocas de plantio, e no segundo cinco horários de colheita, porém somente em uma época. Os experimentos foram estabelecidos na Fazenda Experimental Lageado da FCA-UNESP/Botucatu no Setor de Horticultura do Departamento de Produção Vegetal. Os plantios do primeiro ensaio foram realizados nas seguintes épocas: outubro de 2000, e janeiro, maio e julho de 2001, constando de nove idades de colheita por época. O delineamento experimental utilizado foi o de blocos casualizados, através de um arranjo fatorial 9x4, sendo nove idades de colheita em quatro épocas de plantio com quatro repetições cada. Cada parcela tinha 30 plantas, sendo 12 plantas úteis e um total de 888 plantas para cada época. A colheita foi realizada a cada 15 dias, a partir dos 100 dias após o plantio até completar 220 dias. Neste ensaio também se verificou os teores e a extração dos macronutrientes das folhas. O segundo ensaio constou de cinco horários: às 8:00, 10:00, 12:00, 14:00 e 16:00 h com cinco repetições, distribuídos em blocos casualizados, sendo efetuada somente uma colheita aos 145 dias. As colheitas para ambos experimentos foram realizadas a 15 cm da superfície do solo... .
This work was elaborated with the purpose to determine the influence of age and schedules of harvest for the Brazilian lemon verbena, Lippia alba (Mill.) N.E. Br., chemotype carvone-limonene, its foliar mass production, efficiency and composition of the essential oil, as well as, the contents and quantities extracted form the macronutrients through their leaves. The work consists of two experiments, in the first one, different intervals of crops were tested in the four seasons of the year, in the second one, five different schedules of cropping, but, only in summer. The experiments were established at the Experimental Farm of Lageado of FCA-UNESP/Botucatu in the Horticulture Sector of the Department of Vegetable Production. The plantings of the first testing were done in the following seasons: October 2000, January, May and July 2001, being observed 9 harvest ages each season. The experimental delineation used was of chance blocks, through a 9X4 factor arrangement, being 9 crop intervals in 4 seasons with 4 repetitions of each. Each portion had 30 plants, being that 12 plants were useful and a total of 888 plants for each season. The harvest was accomplished every 15 days, starting after 100 days of age, until it completed 220 days. In this trial the tenor and the extraction of the macronutrients of the leaves were also verified. The second trial was of the time of the.harvest which had five schedules: at 8:00, 10:00, 12:00, 14:00 and 16:00 hrs with 5 repetitions, distributed in 5 chance blocks, only one harvest being done at 145 days. The harvests for both experiments were done at 15 cm from the soil surface... (Complete abstract, click electronic address below).
This work was elaborated with the purpose to determine the influence of age and schedules of harvest for the Brazilian lemon verbena, Lippia alba (Mill.) N.E. Br., chemotype carvone-limonene, its foliar mass production, efficiency and composition of the essential oil, as well as, the contents and quantities extracted form the macronutrients through their leaves. The work consists of two experiments, in the first one, different intervals of crops were tested in the four seasons of the year, in the second one, five different schedules of cropping, but, only in summer. The experiments were established at the Experimental Farm of Lageado of FCA-UNESP/Botucatu in the Horticulture Sector of the Department of Vegetable Production. The plantings of the first testing were done in the following seasons: October 2000, January, May and July 2001, being observed 9 harvest ages each season. The experimental delineation used was of chance blocks, through a 9X4 factor arrangement, being 9 crop intervals in 4 seasons with 4 repetitions of each. Each portion had 30 plants, being that 12 plants were useful and a total of 888 plants for each season. The harvest was accomplished every 15 days, starting after 100 days of age, until it completed 220 days. In this trial the tenor and the extraction of the macronutrients of the leaves were also verified. The second trial was of the time of the.harvest which had five schedules: at 8:00, 10:00, 12:00, 14:00 and 16:00 hrs with 5 repetitions, distributed in 5 chance blocks, only one harvest being done at 145 days. The harvests for both experiments were done at 15 cm from the soil surface... (Complete abstract, click electronic address below).
Descrição
Palavras-chave
Metabolismo simbólico, Colheita, Essencias e oleos essenciais, Secondary metabolism
Como citar
EHLERT, Polyana Aparecida Dias. Épocas de plantio, idades e horários de colheita na produção e qualidade do óleo essencial de Lippia alba (Mill.) N.E. Br., quimiotipo limoneno-carvona. 2003. xx, 108 f. Tese (doutorado) - Universidade Estadual Paulista. Faculdade de Ciências Agronômicas, 2003.