Sun And Shade Leaves
Mostrando 1-12 de 30 artigos, teses e dissertações.
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1. Morphophysiological adjustments to shade of jaboticaba tree saplings
ABSTRACT We aimed to verify the morphophysiological changes in jaboticaba tree (Plinia peruviana (Poir.) Govaerts) saplings under shade gradient to improve knowledge on the appropriate light environmental conditions for the saplings production and field homogeneous or intercropping cultivation of this species. The saplings were grown under full sun and artif
Revista Ceres. Publicado em: 2022
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2. Ecological anatomy of Eugenia punicifolia (Kunth) DC. (MYRTACEAE) in the restinga region,state of Ceará
Resumo A espécie Eugenia punicifolia (Kunth) DC. (murta) ocorre em região de litoral, no Estado do Ceará, e possui importância ecológica e medicinal. A presente pesquisa objetivou caracterizar a anatomia foliar da murta (E. punicifolia), nas estações de chuva e seca, bem como ao sol e à sombra, na Restinga cearense, pretendendo contribuir para a com
Rev. Bras. Frutic.. Publicado em: 25/11/2019
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3. Leaf phenotypic variation and developmental instability in relation to different light regimes
ABSTRACT For pioneer plants, shaded habitats represent a stressful condition, where sunlight exposure is below the optimum level and so leaves expand in order to intercept a greater amount of light. We investigated changes in both phenotypic variation and stress of Bauhinia brevipes in sunny and shaded microhabitats. Leaf area was used as a measure of phenot
Acta Bot. Bras.. Publicado em: 2016-06
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4. Photosynthetic induction and activity of enzymes related to carbon metabolism: insights into the varying net photosynthesis rates of coffee sun and shade leaves
The shade leaves of coffee (Coffea arabica L.) apparently retain a robust photosynthetic machinery that is comparable to that of sun leaves and can fix CO2 at high rates when subjected to high light intensities. This raises the question of why the coffee plant would construct such a robust photosynthetic machinery despite the low photosynthetic rates achieve
Theor. Exp. Plant Physiol.. Publicado em: 2013
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5. Ecophysiology of deciduous plants grown at different densities in the semiarid region of Brazil
Physiological differences in the Cordia oncocalyx tree growing at different densities in two distinct areas were investigated. An agrosilvopastoral system (AGP) and a secondary forest (SF) were studied. Under both types of land-use, C. oncocalyx presented a relative frequency of approximately 50%, and absolute densities of 670 and 80 individuals per hectare,
Theor. Exp. Plant Physiol.. Publicado em: 2013
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6. Comparative anatomy of leaves of Kalanchoe pinnata and K. crenata in sun and shade conditions, as a support for their identification
Kalanchoe pinnata (Lam.) Pers. and K. crenata (Andrews) Haw., Crassulaceae, are popularly used in the treatment of many diseases. Their biological activities, such as anti-leishmaniasis and analgesic, can be useful in phytotherapy. Both species are often misidentified as the other, because of their similar popular uses and names, and the similar external mor
Rev. bras. farmacogn.. Publicado em: 24/04/2012
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7. Anatomia foliar de Bromeliaceae Juss. do Parque Estadual do Itacolomi, Minas Gerais, Brasil / Leaf Anatomy of Bromeliaceae Juss. of the Itacolomi State Park, Minas Gerais, Brazil
Bromeliaceae, com aproximadamente 58 gêneros e 3172 espécies, se encontra distribuída por toda a região neotropical. A família compreende três subfamílias: Bromelioideae e Tillandsioideae, monofiléticas, e Pitcairnioideae, altamente parafilética, e seus representantes se destacam pela capacidade de ocupar ambientes áridos e pobres em nutrientes, co
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 21/02/2011
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8. FotossÃntese e caracterÃsticas foliares de Ipà e Jatobà associadas à disponibilidade de recursos / Photosynthesis and leaf traits of ipà and jatobà related to resources availability
To understand and to relate plant functioning related to contrasts in resources availability it is necessary to perform studies of leaf traits, which have been proposed as indicators of the ecosystems functioning. Within such perspective, we study adult and young individuals of two representative species of biomes of the Brazilian southeast, in different env
Publicado em: 2009
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9. Crescimento, fotossíntese e mecanismos de fotoproteção em mudas de café (Coffea arabica L.) formadas a pleno sol e à sombra / Growth, photosynthesis and mechanisms of photoprotection in coffee (Coffea arabica L.) seedlings grown under full sunlight and shade
Coffee seedlings have been traditionally grown in shaded nurseries. However, some coffee growers, with the aim of improving acclimation after moving the seedlings from the nursery to the field, are growing the seedlings under full sun. Nonetheless, most information associated with cultivation of coffee seedlings under varying light is restricted to simple mo
Publicado em: 2008
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10. Physiological aspects of sun and shade leaves of Lithraea molleoides (Vell.) Engl. (Anacardiaceae)
O presente trabalho teve como objetivo avaliar de forma comparativa alguns parâmetros fisiológicos de folhas de sol e de sombra de um espécime de L. molleoides. Esta espécie é conhecida popularmente como aroeira-branca. As folhas da porção superior periférica, denominadas folhas de sol, apresentaram igual taxa fotossintética, menores teores de cloro
Brazilian Archives of Biology and Technology. Publicado em: 2007-01
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11. Cultivo em campo de Coffea arabica L. cv. Obatã a pleno sol x sombreamento parcial: avaliações bioquímicas, fisiológicas e nutricionais / Field growth of Coffea arabica L. cv. Obatã under full x partial shade: biochemical, physiological and nutritional evaluations
Plants of Arabian coffee with 4,5 years of age, had been compared from August to December growing under full sun and under natural shade conditions. The plants presented significant differences in growth terms and physiological and biochemical's aspects. The nitrogen supply in the October month provided a significant increase on levels of amino acid tota
Publicado em: 2007
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12. Anatomia e perfil lignoídico do lenho e da folhas de Mollinedia schottiana (Spreng.) Perkins / Mollinedia Schottiana (Spreng.) Perkins (Monimiaceae) - anatomy and profile of the lignin in the wood and in the leaves from Tinguá Biological Reserve
The association between chemical and morphological characteristics has allowed the understanding of plant taxonomic, phylogenetic and ecological aspects. This study aimed to characterize wood and leaf anatomy of Mollinedia schottiana, as well as to determine lignin content and chemical composition. M. schottiana is a shrubby-tree species, belonging to the Mo
Publicado em: 2005