O Marmeleiro (Croton sp.) e os seus arredores: manejo e oportunidades de utilização na produção florestal

Abstract

RESUMOO marmeleiro (Croton sp.) é planta que compõe a florística da vegetação de caatinga denunciando áreas antropizadas, promovendo assim a instalação de um espaço ideal para que outras espécies mais Palavras-chave: Marmeleiro, Caatinga, Manejo, Produção florestal. ABSTRACTThe quince is Croton sp. plant that makes up the flora of caatinga vegetation denouncing disturbed areas, thus promoting the installation of an ideal space for other species more sensitive and demanding to be located. Through a performance of Action Research was intended to verify from which the spontaneous quince the same potential to produce forest products and byproducts and how plants respond to some management initiatives, the Action Research was developed in Benedict's Farm Amorim, District Galante, municipality of Campina Grande, state of Paraiba -Brazil. Five plots of 20 m x 20 m sampling (. In plots 1 and 2, were sampled plants with diameter less than 3.0 cm in height and 0.30 m considered commercial plants. The commercials were considered not only numbered and labeled. The data obtained allow inferring that the total number of plants per hectare varies from 10,400 copies to 14,450 copies, quince plants make up 98.07% to 99.30% of the total plant. The quince made with commercial samples ranging from 8.33% to 11.49% (850 to 1650 plants / ha) for plots sampled the highest values were related to wood quality (58.82% to 72.72 %), followed by the production of rods (27.27% to 41.18%) where 8.33% (850 plants) 11.49% (1,650 plants) could be categorized as commercial, 58.82% to these 72.72% will be used to produce firewood and 27.27% to 41.18% will be used to produce rods. As the height of plants in these spontaneous quince ranged from 1.80 m a 4.00 m. There that most of the plants that produced rods had diameters of 3.32 cm to 3.47 cm commercial heights 1.98 m 2.10 m respectively. The cylindrical volume of 0.0020 m3 average booed at 0.0021 m3/plant for firewood and 0.0017 to 0.0020 m³ / plant to sticks. The management of quince, (cut) showed values from 10.88 to 14.04 sprouts with the average total of 12.67 shoots per plant. At the shallow cut in one portion, the herbaceous material in sheet form originated was the equivalent of 595.0 kilograms of green leaves / ha, to scrawl the values can vary from 8,400 kg / ha to 12,980 kg / ha showing strength biomass production of quince even under the most adverse.

Composição Química Do Óleo Essencial Das Folhas De Croton Heliotropiifolius Kunth (Euphorbiaceae) / Chemical Composition of Essential Oil From Croton Heliotropiifolius Kunth (Euphorbiaceae) Leaves

“…Uma das famílias que chamam o interesse da ciência é a família Euphorbiaceae, ela está distribuída por todas as regiões tropicais do globo, é formada por mais de 300 gêneros, os quais representam cerca de 8000 espécies (DE LIRA et al, 2019). A flora nacional é bem representada por esta família, pois ocorrem 72 gêneros e cerca de 1100 espécies conhecidas (JUNIOR et al, 2018).…”