USE OF X-RAY ANALYSIS IN STUDIES OF THE EFFECTS OF DESICCATION ON DIASPORES OF CANELA-BATALHA (Cryptocarya aschersoniana Mez - LAURACEAE)
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Cerne (Online) |
Texto Completo: | https://cerne.ufla.br/site/index.php/CERNE/article/view/865 |
Resumo: | This study evaluated the effect of desiccation, and identified injuries and predation by insects in diaspores of “canelabatalha” (Cryptocarya aschersoniana Mez.) by using X-rays. The damages caused by desiccation were measured in the images and related to the formation of seedlings. Right after fruit depulping, the diaspores (endocarp plus seed) (45 % moisture content – MC and 37 % germination) were dried in acclimatized room (20 °C and 60 % RH), inside of plastic trays in a single layer. Later, in order to speed up the drying process, they were placed in drying boxes with saturated solution of sodium hydroxide (28 % RH) and sampled with 45, 37, 35, 31 and 26 % MC. For the X-rays, an intensity of radiation of 40 KVp was used and the time of exposition of 1.5 min. The radiographies were then photographed and the images analyzed in computer, being measured the separation between endocarp and the seed. The diaspores were classified as intact; with partial separation; with total separation and predated. The germination tests were carried out on sand, in incubators Mangelsdorf at 25 °C and constant white light. The results showed that the germination is affected when the diaspore MC reaches values below 26 %. In this point, the separation between endocarp and the seed is 0.65 mm. There was a positive correlation between the viability of the seeds, evaluated through germination tests and the separation between endocarp and the seed, observed through X-rays. The radiographic analysis helps identify damage caused by predation after insect infestation. |
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USE OF X-RAY ANALYSIS IN STUDIES OF THE EFFECTS OF DESICCATION ON DIASPORES OF CANELA-BATALHA (Cryptocarya aschersoniana Mez - LAURACEAE)Radiographic analysisrecalcitrant seedsforest speciesseed predation.This study evaluated the effect of desiccation, and identified injuries and predation by insects in diaspores of “canelabatalha” (Cryptocarya aschersoniana Mez.) by using X-rays. The damages caused by desiccation were measured in the images and related to the formation of seedlings. Right after fruit depulping, the diaspores (endocarp plus seed) (45 % moisture content – MC and 37 % germination) were dried in acclimatized room (20 °C and 60 % RH), inside of plastic trays in a single layer. Later, in order to speed up the drying process, they were placed in drying boxes with saturated solution of sodium hydroxide (28 % RH) and sampled with 45, 37, 35, 31 and 26 % MC. For the X-rays, an intensity of radiation of 40 KVp was used and the time of exposition of 1.5 min. The radiographies were then photographed and the images analyzed in computer, being measured the separation between endocarp and the seed. The diaspores were classified as intact; with partial separation; with total separation and predated. The germination tests were carried out on sand, in incubators Mangelsdorf at 25 °C and constant white light. The results showed that the germination is affected when the diaspore MC reaches values below 26 %. In this point, the separation between endocarp and the seed is 0.65 mm. There was a positive correlation between the viability of the seeds, evaluated through germination tests and the separation between endocarp and the seed, observed through X-rays. The radiographic analysis helps identify damage caused by predation after insect infestation.CERNECERNE2016-04-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://cerne.ufla.br/site/index.php/CERNE/article/view/865CERNE; Vol. 18 No. 4 (2012); 657-666CERNE; v. 18 n. 4 (2012); 657-6662317-63420104-7760reponame:Cerne (Online)instname:Universidade Federal de Lavras (UFLA)instacron:UFLAenghttps://cerne.ufla.br/site/index.php/CERNE/article/view/865/644Copyright (c) 2016 CERNEinfo:eu-repo/semantics/openAccessMuxfeldt, Rejane ElizeFaria, José Marcio RochaTonetti, Olívia Alvina OliveiraSilva, Edvaldo Aparecido Amaral da2016-04-19T17:51:28Zoai:cerne.ufla.br:article/865Revistahttps://cerne.ufla.br/site/index.php/CERNEPUBhttps://cerne.ufla.br/site/index.php/CERNE/oaicerne@dcf.ufla.br||cerne@dcf.ufla.br2317-63420104-7760opendoar:2024-05-21T19:54:08.785201Cerne (Online) - Universidade Federal de Lavras (UFLA)true |
dc.title.none.fl_str_mv |
USE OF X-RAY ANALYSIS IN STUDIES OF THE EFFECTS OF DESICCATION ON DIASPORES OF CANELA-BATALHA (Cryptocarya aschersoniana Mez - LAURACEAE) |
title |
USE OF X-RAY ANALYSIS IN STUDIES OF THE EFFECTS OF DESICCATION ON DIASPORES OF CANELA-BATALHA (Cryptocarya aschersoniana Mez - LAURACEAE) |
spellingShingle |
USE OF X-RAY ANALYSIS IN STUDIES OF THE EFFECTS OF DESICCATION ON DIASPORES OF CANELA-BATALHA (Cryptocarya aschersoniana Mez - LAURACEAE) Muxfeldt, Rejane Elize Radiographic analysis recalcitrant seeds forest species seed predation. |
title_short |
USE OF X-RAY ANALYSIS IN STUDIES OF THE EFFECTS OF DESICCATION ON DIASPORES OF CANELA-BATALHA (Cryptocarya aschersoniana Mez - LAURACEAE) |
title_full |
USE OF X-RAY ANALYSIS IN STUDIES OF THE EFFECTS OF DESICCATION ON DIASPORES OF CANELA-BATALHA (Cryptocarya aschersoniana Mez - LAURACEAE) |
title_fullStr |
USE OF X-RAY ANALYSIS IN STUDIES OF THE EFFECTS OF DESICCATION ON DIASPORES OF CANELA-BATALHA (Cryptocarya aschersoniana Mez - LAURACEAE) |
title_full_unstemmed |
USE OF X-RAY ANALYSIS IN STUDIES OF THE EFFECTS OF DESICCATION ON DIASPORES OF CANELA-BATALHA (Cryptocarya aschersoniana Mez - LAURACEAE) |
title_sort |
USE OF X-RAY ANALYSIS IN STUDIES OF THE EFFECTS OF DESICCATION ON DIASPORES OF CANELA-BATALHA (Cryptocarya aschersoniana Mez - LAURACEAE) |
author |
Muxfeldt, Rejane Elize |
author_facet |
Muxfeldt, Rejane Elize Faria, José Marcio Rocha Tonetti, Olívia Alvina Oliveira Silva, Edvaldo Aparecido Amaral da |
author_role |
author |
author2 |
Faria, José Marcio Rocha Tonetti, Olívia Alvina Oliveira Silva, Edvaldo Aparecido Amaral da |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Muxfeldt, Rejane Elize Faria, José Marcio Rocha Tonetti, Olívia Alvina Oliveira Silva, Edvaldo Aparecido Amaral da |
dc.subject.por.fl_str_mv |
Radiographic analysis recalcitrant seeds forest species seed predation. |
topic |
Radiographic analysis recalcitrant seeds forest species seed predation. |
description |
This study evaluated the effect of desiccation, and identified injuries and predation by insects in diaspores of “canelabatalha” (Cryptocarya aschersoniana Mez.) by using X-rays. The damages caused by desiccation were measured in the images and related to the formation of seedlings. Right after fruit depulping, the diaspores (endocarp plus seed) (45 % moisture content – MC and 37 % germination) were dried in acclimatized room (20 °C and 60 % RH), inside of plastic trays in a single layer. Later, in order to speed up the drying process, they were placed in drying boxes with saturated solution of sodium hydroxide (28 % RH) and sampled with 45, 37, 35, 31 and 26 % MC. For the X-rays, an intensity of radiation of 40 KVp was used and the time of exposition of 1.5 min. The radiographies were then photographed and the images analyzed in computer, being measured the separation between endocarp and the seed. The diaspores were classified as intact; with partial separation; with total separation and predated. The germination tests were carried out on sand, in incubators Mangelsdorf at 25 °C and constant white light. The results showed that the germination is affected when the diaspore MC reaches values below 26 %. In this point, the separation between endocarp and the seed is 0.65 mm. There was a positive correlation between the viability of the seeds, evaluated through germination tests and the separation between endocarp and the seed, observed through X-rays. The radiographic analysis helps identify damage caused by predation after insect infestation. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-04-05 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://cerne.ufla.br/site/index.php/CERNE/article/view/865 |
url |
https://cerne.ufla.br/site/index.php/CERNE/article/view/865 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://cerne.ufla.br/site/index.php/CERNE/article/view/865/644 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2016 CERNE info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2016 CERNE |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
CERNE CERNE |
publisher.none.fl_str_mv |
CERNE CERNE |
dc.source.none.fl_str_mv |
CERNE; Vol. 18 No. 4 (2012); 657-666 CERNE; v. 18 n. 4 (2012); 657-666 2317-6342 0104-7760 reponame:Cerne (Online) instname:Universidade Federal de Lavras (UFLA) instacron:UFLA |
instname_str |
Universidade Federal de Lavras (UFLA) |
instacron_str |
UFLA |
institution |
UFLA |
reponame_str |
Cerne (Online) |
collection |
Cerne (Online) |
repository.name.fl_str_mv |
Cerne (Online) - Universidade Federal de Lavras (UFLA) |
repository.mail.fl_str_mv |
cerne@dcf.ufla.br||cerne@dcf.ufla.br |
_version_ |
1799874941909204992 |