Produção Nacional
Revisado por pares
Seed germination responses of Cereus jamacaru DC. ssp. jamacaru (Cactaceae) to environmental factors
2010; Wiley; Volume: 25; Issue: 2 Linguagem: Inglês
10.1111/j.1442-1984.2010.00274.x
ISSN1442-1984
AutoresMarcos Vinícius Meiado, LARISSA SIMÕES CORRÊA DE ALBUQUERQUE, Emerson Antônio Rocha Melo de Lucena, Mariana Rojas‐Aréchiga, Inara R. Leal,
Tópico(s)Botanical Research and Applications
ResumoPlant Species BiologyVolume 25, Issue 2 p. 120-128 Seed germination responses of Cereus jamacaru DC. ssp. jamacaru (Cactaceae) to environmental factors MARCOS VINICIUS MEIADO, Corresponding Author MARCOS VINICIUS MEIADO Post-Graduate Program in Plant Biology,Marcos Vinicius MeiadoEmail: [email protected]Search for more papers by this authorLARISSA SIMÕES CORRÊA DE ALBUQUERQUE, LARISSA SIMÕES CORRÊA DE ALBUQUERQUE Department of Zoology andSearch for more papers by this authorEMERSON ANTÔNIO ROCHA, EMERSON ANTÔNIO ROCHA Department of Biological Science, State University of Santa Cruz, Rodovia Ilheus-Ibatuba, Km 16, Salobrinho, Ilheus, Bahia, Brazil; andSearch for more papers by this authorMARIANA ROJAS-ARÉCHIGA, MARIANA ROJAS-ARÉCHIGA Department of Biodiversity Ecology, Ecology Institute, National Autonomous University of Mexico, Ciudad Universitaria, DF 04510 MexicoSearch for more papers by this authorINARA ROBERTA LEAL, INARA ROBERTA LEAL Department of Botany, Federal University of Pernambuco, Av. Professor Moraes Rego, Cidade Universitaria, Recife, Pernambuco, Brazil,Search for more papers by this author MARCOS VINICIUS MEIADO, Corresponding Author MARCOS VINICIUS MEIADO Post-Graduate Program in Plant Biology,Marcos Vinicius MeiadoEmail: [email protected]Search for more papers by this authorLARISSA SIMÕES CORRÊA DE ALBUQUERQUE, LARISSA SIMÕES CORRÊA DE ALBUQUERQUE Department of Zoology andSearch for more papers by this authorEMERSON ANTÔNIO ROCHA, EMERSON ANTÔNIO ROCHA Department of Biological Science, State University of Santa Cruz, Rodovia Ilheus-Ibatuba, Km 16, Salobrinho, Ilheus, Bahia, Brazil; andSearch for more papers by this authorMARIANA ROJAS-ARÉCHIGA, MARIANA ROJAS-ARÉCHIGA Department of Biodiversity Ecology, Ecology Institute, National Autonomous University of Mexico, Ciudad Universitaria, DF 04510 MexicoSearch for more papers by this authorINARA ROBERTA LEAL, INARA ROBERTA LEAL Department of Botany, Federal University of Pernambuco, Av. Professor Moraes Rego, Cidade Universitaria, Recife, Pernambuco, Brazil,Search for more papers by this author First published: 29 April 2010 https://doi.org/10.1111/j.1442-1984.2010.00274.xCitations: 41Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onEmailFacebookTwitterLinkedInRedditWechat Abstract In the present study, we assessed the seed germination responses of Cereus jamacaru DC. ssp. jamacaru (Cactaceae) to environmental factors. The seeds were collected from an area within Caatinga, a semiarid vegetation area located in north-eastern Brazil. We determined the optimal temperature for germination of C. jamacaru seeds and evaluated the effect of temperature, light intensity, light quality, water and saline stress on seed germination. Cereus jamacaru was classified as a positive photoblastic species. Maximum germination (95.8 ± 2.6%) was found under white light, and seed germination was not observed in darkness in any of the temperature, water or saline stress treatments. The optimum temperature for seed germination was 30°C because this temperature favored most of the parameters evaluated. Seed germinability responded positively to a wide range of temperatures, but was affected neither by light intensity nor by light quality. A reduction in water availability and an increase in saline concentration affected germinability and promoted slower, unsynchronized germination. 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