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dc.contributor.authorRONQUIM, C. C.pt_BR
dc.contributor.authorPRADO, C. H. B. A.pt_BR
dc.contributor.authorSOUZA, J. P. dept_BR
dc.date.accessioned2011-04-09T16:19:54Z-
dc.date.available2011-04-09T16:19:54Z-
dc.date.created2011-01-25pt_BR
dc.date.issued2010pt_BR
dc.identifier.citationBrazilian Journal of Plant Physiology, v. 21, n. 3, p. 197-208, 2009.pt_BR
dc.identifier.issn1677-0420pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/874412pt_BR
dc.descriptionGrowth and leaf nutrient content were compared in young potted plants of Copaifera langsdorffii in sunny and shaded areas without water stress. Besides, carbon assimilation and leaf water relations were evaluated by net photosynthesis, potential photochemical efficiency and leaf water potential during daily courses in dry and rainy periods under natural conditions in both contrasting irradiances. Higher values of total biomass, height and leaf area occurred in sunny than in shaded area. On the other hand, all young plants survived in shade under natural water stress probably by reason of fast and intense biomass accumulation in favor of roots in early development. There was no significant difference about nutrient concentration in leaves between plants growing in sunny and shaded areas. Net photosynthesis in shade increased occasionally when bunches of direct light reached the leaves. Theses sunflecks took place more frequently and at high intensity in dry period but they were more effective for net photosynthesis in rainy period. The ability of young plants to persist under natural conditions in contrasting irradiance up to 1,230 days after sowing could explain the wide distribution of C. langsdorffii in Cerrado physiognomies and in different types of forest.pt_BR
dc.language.isoengeng
dc.rightsopenAccesseng
dc.subjectFeixes de irradiânciapt_BR
dc.subjectFluorescência da clorofilapt_BR
dc.subjectPartição da biomassapt_BR
dc.subjectTrocas gasosas foliarespt_BR
dc.titleGrowth, photosynthesis and leaf water potential in young plants of Copaifera langsdorffii Desf. (Caesalpiniaceae) under contrasting irradiances.pt_BR
dc.typeArtigo de periódicopt_BR
dc.date.updated2019-05-03T11:11:11Zpt_BR
dc.subject.thesagroCerradopt_BR
dc.subject.thesagroSobrevivênciapt_BR
riaa.ainfo.id874412pt_BR
riaa.ainfo.lastupdate2019-05-03 -03:00:00pt_BR
dc.contributor.institutionCARLOS CESAR RONQUIM, CNPM; CARLOS HENRIQUE B. A. PRADO, UFSCar/CCBS; JOÃO PAULO DE SOUZA, UFG/DCB.pt_BR
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