Stomatal Anatomy
Mostrando 1-10 de 10 artigos, teses e dissertações.
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1. The taxonomic value of leaf anatomy for species Byrsonima: a difficult genus of Malpighiaceae Juss.
ABSTRACT We studied the leaf anatomy of 15 species of Byrsonima and a single species of Diacidia as an outgroup to test the relevance of leaf anatomical characters to the complicated taxonomy of this genus. We present complete anatomical descriptions for petioles and leaf blades, together with an anatomical matrix, dendrogram and an identification key for th
Acta Bot. Bras.. Publicado em: 2020-09
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2. Exomorfología y anatomía de órganos vegetativos aéreos en especies de Flourensia DC. (Asteraceae) con importancia fitoquímica
The genus Flourensia DC. is American and comprises 32 species. They are resiniferous shrubs used in folk medicine. As they have potential economic value, its chemical compounds have been characterized and some possible uses identified. In this work, the exomorphology and anatomy of vegetative organs of F. hirta S. F. Blake, F. leptopoda S. F. Blake, F. niede
Acta Botanica Brasilica. Publicado em: 2012-03
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3. Physiological and anatomical characteristics of leaves of two clones of guarana.
The objective of this work was to analyze gas exchange, photosynthetic characteristics, photochemical efficiency of photosystem II and anatomical characteristics of young plant leaves of two guarana (Paullinia cupana) clones (BRS-CG372RC and BRS-CG611RL) growing under open field. The variables of gas exchange and fluorescence of chlorophyll a were evaluated
Pesquisa Agropecuária Brasileira. Publicado em: 2011
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4. Sobrevivência, morfo-anatomia, crescimento e assimilação de carbono de seis espécies arbóreas neotropicais submetidas à saturação hídrica do solo / Survival, morpho-anatomy, growth and carbon assimilation of six neotropical tree species submitted to flooding
Alchornea triplinervia, Nectandra oppositifolia, Eugenia umbelliflora, Gomidesia schaueriana, Guapira opposita and Guatteria gomeziana are typical tree species of swampy areas of Restinga Forest in Southeastern Brazil. To elucidate effects of seasonal flooding on survival, morpho-anatomy, growth and carbon assimilation rate in these species, were evaluated g
Publicado em: 2011
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5. Efeito da sazonalidade da precipitação no crescimento e trocas gasosas em espécies arbóreas numa floresta de terra-firme da Amazônia Central
The objectives of this study were to determine the effect of the rainfall pattern on growth and leaf gas exchange in saplings of ten tree species in a terra-firma rainforest of Central Amazonia. I also studied the effect of diurnal variation on photosynthetic rates (A), and the relationship between A and growth rates of saplings. The study was conducted at t
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/07/2009
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6. CitogenÃtica e potencial forrageiro de combinaÃÃes genÃmicas de capim-elefante e milheto / Cytogenetics and forage potential of genomic combinations in elephant grass and pearl millet
Visando contribuir com o programa de melhoramento do capim-elefante da Embrapa Gado de Leite, combinaÃÃes genÃmicas resultantes do retrocruzamento do hÃbrido hexaploide com seus parentais capim-elefante e milheto foram avaliadas para caracterÃsticas citogenÃticas, anatÃmicas e agronÃmicas/bromatolÃgicas. Pennisetum purpureum (2n=4x=28, genomas AâA�
Publicado em: 2009
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7. Resposta fisiológica e anatômica do açaizeiro e da palmeira real australiana ao sombreamento / Physiological and anatomical response of the assai palm and the king palm to the shading levels
The present work involves two species of producing heart of palm: assai palm (Euterpe oleracea) and the king palm (Archontophoenix alexandrae) with objective: to measure the agronomic and physiological characters, in 3 environments of luminosity, to study the anatomy of the palm and to evaluate the behavior of the two species in sight to direct the producer,
Publicado em: 2008
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8. Aspects of seeds germination and influence of light on the development, leaf anatomy and chemical composition of essential oil in Ocimum gratissimum L. / Aspectos da germinaÃÃo das sementes e influÃncia da luz no desenvolvimento, anatomia foliar e composiÃÃo quÃmica do Ãleo essencial em Ocimum gratissimum L.
Before the need to deepen the knowledge about medicinal flora, the species Ocimum gratissimum L., an important producer of essential oil much utilized as a phytotherapeutic, was selected. The main objectives in this work were to evaluate physiologic aspects of germination and storage of seeds as well as to investigate growth leaf anatomy and accumulation of
Publicado em: 2006
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9. Ploidy Effects on Anatomy and Gas Exchange of Tall Fescue Leaves 1
A growth chamber study was designed to interpret differences in CO2 exchange rate (CER) and leaf diffusive resistance among 4X, 6X, 8X, and 10X ploidy levels of tall fescue (Festuca arundinacea, Schreb). Mesophyll cell size, stomatal density, number of major and minor veins, and bundle cap size of leaf blades were evaluated. Diffusive resistance tended to de
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10. Light Acclimation During and After Leaf Expansion in Soybean 1
Soybean plants (Glycine max var. Ransom) were grown at light intensities of 850 and 250 μeinsteins m−2 sec−1 of photosynthetically active radiation. A group of plants was shifted from each environment into the other environment 24 hours before the beginning of the experiment. Net photosynthetic rates and stomatal conductances were measured at 2,000 and