Vegetal Transpiration
Mostrando 13-24 de 31 artigos, teses e dissertações.
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13. 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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14. Transpiration and stomatal resistance variations of perennial tropical crops under soil water availability conditions and water deficit
O experimento foi realizado no Departamento de Produção Vegetal da Escola Superior de Agricultura "Luiz de Queiroz", ESALQ/USP, Piracicaba, São Paulo, Brasil, utilizando-se as culturas de guaranazeiro (Paullinia cupana Kunth), cafeeiro (Coffea arabica L.), cajueiro (Anacardium occidentale L.), goiabeira (Psidium guajava L.) e seringueira (Hevea brasiliens
Brazilian Archives of Biology and Technology. Publicado em: 2007-03
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15. Avaliação fisiológica da aroeira (Schinus terebinthifolius Raddi) sob déficit hídrico com vista para o reflorestamento.
This work aimed to study the effect of water deficit on gas exchange, leaf water potential, dry matter production, and some biochemical aspects of Schinus terebinthifolius Raddi. young plants. A research project was developed, under greenhouse conditions, at the Laboratório de Fisiologia Vegetal, Departamento of Biologia of Universidade Rural de Pernambuco
Publicado em: 2007
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16. Morphology, relations water and photosyntheses in two cultivate of Coffea canephora submitted the of water déficit / Morfologia, relações hídricas e fotossíntese em duas cultivares de Coffea canephora submetidas ao déficit hídrico
In this study we aimed to expand our earlier understanding on the mechanisms associated with drought tolerance within Coffea canephora. Two cultivars of C. canephora, robusta (drought-sensitive) and kouillou (drought-tolerant) were grown in 24-L pots until 12-month old, when an irrigation and a drought treatment were applied. Plants were droughted until pred
Publicado em: 2007
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17. Caracterização fisiológica e influência da época de plantio no florescimento de cultivares de cana-de-açúcar.
Brazil is the largest sugarcane producer in the world, and this extremely important crop gives rise to significant social, economical and environmental implications for the country. Brazil is also the largest industrial manufacturer of sugarcane alcohol and thus occupies a strategic position in terms of supply of this alternative and renewable source of ener
Publicado em: 2007
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18. Photosynthesis, gas exchange and antioxidative response in Canavalia ensiformis and Stizolobium aterrimum exposed to toxic levels of arsenic / Fotossíntese, trocas gasosas e respostas antioxidativas em Canavalia ensiformis e Stizolobium aterrimum submetidas a níveis tóxicos de arsênio
Canavalia ensiformis and Stizolobium aterrimum species grown in nutrient solution, pH 5.5, were treated with arsenic (As) at 0.0; 1.5; 2.5 and 3.5 mg L-1 concentrations during five days. After plant treatment As content and dry mass yield were determined. Arsenic effect on physiological and antioxidative parameters were also studied in the two species expose
Publicado em: 2007
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19. Anatomia foliar de leguminosas arboreas de cerrado com enfase nas estruturas secretoras / Leaf anatomy of cerrado Leguminosae trees with emphasis on secretory sctructures
Foliar anatomy (leaflet lamina, petiolule and rachis) and secretory structures of four papilionoid tree species occurring in the cerrado were studied. The presence of anatomical characters common to these and other species occurring in the same formation was also investigated. Secretory epidermis and mesophyll idioblasts were found in Acosmium dasycarpum, A.
Publicado em: 2006
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20. Foliar anatomy of species of Chamaecrista Moench. (Leguminosae/Caesalpinioideae) occurring in rupestrial fields / Anatomia foliar de espécies de Chamaecrista Moench. (Leguminosae/Caesalpinioideae) ocorrentes em campo rupestre
Minas Gerais state flora presents different biomas but little is known about the diversity of its species, some of which secrete natural compounds having well-known biological activity. There is a large number of species of recognized economic interest in the Leguminosae family and in the rupestrial fields of Minas Gerais, totaling 28 of the 351 species incl
Publicado em: 2006
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21. Evapotranspiração de cafezal semi-adensado irrigado por gotejamento e sua relação com a evapotranspiração de referência / Evapotranspiration in a drip-irrigated hedgerow-coffee plantation and its relationship with the reference evapotranspiration
O uso crescente de irrigação na cafeicultura devido ao cultivo em áreas com maior deficiência hídrica exige conhecimento sobre o consumo de água da cultura. Para contribuir para esse conhecimento, a evapotranspiração global do cafezal (ETc) e sua partição nos fluxos componentes evapotranspiração das linhas de cafeeiros (ETlin), evapotranspiraçã
Publicado em: 2006
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22. Avaliação ecofisiológica do cafeeiro (Coffea arabica L.) em sistema agroflorestal e em monocultivo. / Ecophysiological evaluation of coffee plants (Coffea arabica L.) in an agroforestry system and in monocrop.
O presente trabalho objetivou uma melhor compreensão do comportamento ecofisiológico do cafeeiro (Coffea arabica L.) sob diferentes condições de cultivo sejam, intensidade de sombra e demais interações com a seringueira (Hevea brasiliensis Müell. Arg.). Procurou-se evidenciar a competição por luz e água em função da distância das árvores e cons
Publicado em: 2005
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23. Atividade das enzimas redutase do nitrato e glutamina sintetase em cafeeiro arábica. / Activity of the nitrate reductase and glutamine synthetase enzymes in arabic coffee.
O objetivo deste trabalho foi avaliar a atividade das enzimas redutase do nitrato (RN) e glutamina sintetase (GS) em mudas de Coffea arabica L cv Obatã IAC 1669-20 em função dos atributos ecofisiológicos. O experimento foi conduzido em casa de vegetação no Laboratório de Biotecnologia Agrícola do Departamento de Ciências Biológicas da Escola Superi
Publicado em: 2005
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24. Root-shoot communication in contrasting Lycopersicon genotypes under stress caused by water deficit. / Sinalização entre os sistemas radiculares e caulinares em genótipos contrastantes de Lycopersicon sob estresse por deficiência hídrica.
Multicellular plants are complex organisms and their orderly development requires an extraordinary measure of coordination between cells. In order to coordinate their activities, cells must be able to communicate with each other, often at some distance. The principal means of intercellular communication are the hormones, chemical messengers that carry inform
Publicado em: 2004