Capacidade Adaptativa De Espécies Do Cerrado Utilizadas Em Áreas De Recuperação Ambiental1

Abstract

4RESUMO -O objetivo deste estudo foi avaliar a capacidade adaptativa, com base em dados de área foliar específica (AFE) e comprimento do pecíolo (CP) de espécies nativas do Cerrado de duas áreas em recuperação, comparadas com indivíduos-controle. Foram selecionadas cinco espécies na Área 1 (luminosidade intensa) e 10 espécies na Área 2 (luminosidade intensa). Houve diferenças significativas entre as espécies das duas áreas e o controle, para a maioria das espécies estudadas. A AFE e o CP, ao contrário do que se esperava, foram significativamente maiores na Área 2 do que no controle (sombreamento). Entretanto, grande parte das espécies da Área 1 tiveram AFE e o CP iguais ou menores do que o controle e do que as espécies da Área 2. As espécies estudadas possuem, portanto, a capacidade de ajustar sua morfologia e, provavelmente, também sua fisiologia, para a aclimatação a ambientes com luminosidade intensa. Assim, são espécies potenciais para utilização em programas de recuperação ambiental.Palavras-chave: Áreas degradadas; Área foliar específica; Comprimento do pecíolo. ADAPTATIVE CAPACITY OF CERRADO'S SPECIES USED IN ENVIRONMENTAL RECOVERY AREAS

Controlled-Release Fertilizer and Container Volume to Produce Inga laurina Seedlings

“…The Inga spp. gender are among the most widely adopted in forest restoration, especially due to its high phenotypic plasticity (Martins at al., 2015). The species Inga laurina (Sw.) Willd has a wide phytogeographic distribution and an ecological importance, considering its fruits are a source of food for wild animals (Souza & Lorenzi, 2005).…”

Characteristics of Entisol Treated With Pulp Residue and Fertilizer in Eucalyptus Plantation

“…However, when below 30%, these data are homogeneous, and the mean value is significant and can be used as representative for the data obtained. However, as proposed by Pimentel-Gomes and Garcia (2002), there is no specificity regarding the nature of the trial/treatments, the culture studied, the attributes analyzed and soil classification, which may be relevant in the interpretation of such measurement, considering that greenhouse experiments are not always associated with low CV, such as studies with vases and low fertility soils, like those found in the Cerrado (Amaral et al, 1997;Martins et al, 2015).…”

Shading Levels and Substrates Affect Morphophysiological Responses and Quality of Anadenanthera peregrina (L.) Speg Seedlings

“…Values for A. peregrina seedlings did not show the presence of etiolation, demonstrating balanced distribution of receiving photoassimilates. The increase of the number of leaves is important because it indicates an increase in photosynthesis/area, which suggests its efficiency in the production of photoassimilates that are later translocated to other parts of the plant, that can be favored by the input of phytomass (Martins et al, 2015), since a plant that has a well-developed aerial stem improves its ability to intercept and use the Photosynthetically Active Radiation (PAR) under direct sunlight.…”

“…The increase of SLA and SLM components, under direct sunlight due to the functional adaptive capacity of the leaf tissues, represents the increase of the palisade layer and biomass accumulation, directly related to the need for the plant to Santos CC, Jorge HPG, Dias LGF, Vieira MC grow in high irradiance environments (Martins et al, 2015), favoring its ecological tolerance.…”