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Photosynthesis, Growth and Development of Tabebuia avellanedae Lor. ex Griseb. (Bignoniaceae) in Flooded Soil BABT
Davanso,Viviane M.; Souza,Luiz A. de; Medri,Moacyr E.; Pimenta,José A.; Bianchini,Edmilson.
Morphological, anatomical and ecophysiological modifications caused by flooding in the growth and development of Tabebuia avellanedae Lor. ex Griseb. (Bignoniaceae) were studied and correlated with tolerance to the excess of water in the soil. Three-month-old plants, grown in a greenhouse, underwent a period of 56 days of flooding and a post-flooding period. Photosynthesis rate and growth decreased in T. avellanedae when flooding duration increased. Though not much tolerant, plant adapted itself to short flooding periods. This relative tolerance was probably due to the capacity of T. avellanedae in developing structures which lessened flooding effects and promoted internal diffusion of oxygen from the aerial part to the roots, such as stem fissures,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Inundation; Oxygen deprivation; Ecological anatomy; Tabebuia avellaneadae.
Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132002000300016
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Slope variation and population structure of tree species from different ecological groups in South Brazil Anais da ABC (AABC)
Bianchini,Edmilson; Garcia,Cristina C.; Pimenta,José A.; Torezan,José M.D..
Size structure and spatial arrangement of 13 abundant tree species were determined in a riparian forest fragment inParaná State, South Brazil (23"16'S and 51"01'W). The studied species were Aspidosperma polyneuron Müll. Arg., Astronium graveolens Jacq. and Gallesia integrifolia (Spreng) Harms (emergent species); Alseis floribunda Schott, Ruprechtia laxiflora Meisn. and Bougainvillea spectabilis Willd. (shade-intolerant canopy species); Machaerium paraguariense Hassl, Myroxylum peruiferum L. and Chrysophyllum gonocarpum (Mart. & Eichler ex Miq.) Engl. (shade-tolerant canopy species); Sorocea bonplandii (Baill.) Bürger, Trichilia casaretti C. Dc, Trichilia catigua A. Juss. and Actinostemon concolor (Spreng.) Müll. Arg. (understory small trees...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Diameter structure; Ecological groups; Forest fragment; Seasonal semideciduous forest; Spatial pattern.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652010000300012
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Spatial and temporal variation in the canopy cover in a tropical semi-deciduous forest BABT
Bianchini,Edmilson; Pimenta,José A.; Santos,Flavio A. M. dos.
This study was developed in the Mata dos Godoy State Park (23° 27’S, 51° 15’W) South Brazil which present great environmental heterogeneity when its north portion (ridge) is compared with the southern portion (valley), where there are some flooded areas. The forest formation is classified as tropical semi-deciduous forest. Spatial and temporal variations in the degree of the canopy cover were compared at flooded and unflooded sites. The measures were taken seasonally in 100m² plots using a spherical densiometer from spring 1995 to winter 1996. The flooded area was more open and lighter and had a greater spatial and temporal variation in the canopy cover than the unflooded areas. The greater heterogeneity in the flooded area could be due to structural...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Canopy; Flooding; Seasonality; Spatial heterogeneity; Tropical forest.
Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132001000300008
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Tolerância à inundação: aspectos da anatomia ecológica e do desenvolvimento de Sesbania virgata (Cav.) Pers. (Fabaceae) BABT
Davanso-Fabro,Viviane M.; Medri,Moacyr E.; Bianchini,Edmilson; Pimenta,José A..
Plantas de Sebania virgata (Cav.) Pers. (Fabaceae) cultivadas em casa de vegetação foram alagadas por 40 dias. Plantas alagadas apresentaram aumento do peso da matéria seca e comprimento, acentuadas rachaduras corticais e intumescimento cortical esponjoso em caules e raízes, raízes superficiais e raízes adventícias. É possível que a plasticidade morfo-anatômica apresentada por esta espécie esteja contribuindo para o seu estabelecimento em solos hipóxicos.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Sesbania virgata; Hipoxia; Anatomia Ecológica.
Ano: 1998 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89131998000400012
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