Tolerance to water deficit in young trees of jackfruit and sugar apple Report as inadecuate




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Bruna Dias Souza ; Rejane Mansur Nogueira ; Mauro Guida Santos ;Revista Ciência Agronômica 2010, 41 2

Author: Bruno Monteiro Rodrigues

Source: http://www.redalyc.org/


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Revista Ciência Agronômica ISSN: 0045-6888 ccarev@ufc.br Universidade Federal do Ceará Brasil Monteiro Rodrigues, Bruno; Dias Souza, Bruna; Mansur Nogueira, Rejane; Guida Santos, Mauro Tolerance to water deficit in young trees of jackfruit and sugar apple Revista Ciência Agronômica, vol.
41, núm.
2, abril-junio, 2010, pp.
245-252 Universidade Federal do Ceará Ceará, Brasil Available in: http:--www.redalyc.org-articulo.oa?id=195314926011 How to cite Complete issue More information about this article Journals homepage in redalyc.org Scientific Information System Network of Scientific Journals from Latin America, the Caribbean, Spain and Portugal Non-profit academic project, developed under the open access initiative Revista Ciência Agronômica, v.
41, n.
2, p.
245-252, abr-jun, 2010 Centro de Ciências Agrárias - Universidade Federal do Ceará, Fortaleza, CE www.ccarevista.ufc.br Scientific Article ISSN 1806-6690 Tolerance to water deficit in young trees of jackfruit and sugar apple1 Tolerância ao déficit hídrico em plantas jovens de jaqueira e pinheira Bruno Monteiro Rodrigues2, Bruna Dias Souza3, Rejane Mansur Nogueira4 e Mauro Guida Santos5* Abstract - The predawn leaf water potential (Ψl), stomatal conductance (gs), CO2 assimilation (A), transpiration (E), chlorophyll a fluorescence and leaf metabolite contents (soluble sugars, proteins and free amino acids) of two tropical fruit species grown in a greenhouse were evaluated to determine the effect of induced water stress on young plants.
Six month-old jackfruit (Artocarpus heterophyllus Lam.) and sugar apple (Annona squamosa L.) plants were evaluated in 10.0 L pots after eight days of water withholding, imposed by suspension of irrigation.
Jackfruit water status was better than sugar apple.
Sugar apple plants showed different daily stomatal behavior when well hydrated, compared to jackfruit plants under the same conditions.
The gas exchange of both species showed sensibility to high vapor p...





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