Methods for overcoming dormancy in cassava seeds
Autor(a) principal: | |
---|---|
Data de Publicação: | 2023 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Agro@mbiente on-line |
Texto Completo: | https://revista.ufrr.br/agroambiente/article/view/7810 |
Resumo: | The propagation of cassava via seminal is an option but faces problems due to dormancy and slow germination. Therefore, the objective was to evaluate the effect of pre-germination treatments, on overcoming Manihot esculenta seed dormancy, clone Gabriela, cultivated in Roraima, Brazil. The experiment was a completely randomized design, with four replicates of 25 seeds, each in seven treatments: intact seeds (CONTROL); lateral scarification the seed (LS); removal of the caruncle (RC); scarification of the caruncle (SC); immersion of the seeds in sulphuric acid for 10 minutes (SA10); for 20 minutes (SA20) and for 30 minutes (SA30). The seeds were sown in trays containing river sand, washed and passed through a 2 mm mesh sieve. The following variables were analyzed: seedling emergence (SE), average emergence time (MET), emergence speed index (ESI), percentage of firm seeds (PFS), percentage of hard seeds (PHS) and percentage of deteriorated seeds (PSDET). The LS (89±7%) and SC (82±5%) treatments were superior to the others, obtaining the shortest MET (11.7±0.38 and 12.8±0.69 days, respectively) and consequently the highest IVE (1.55±0.22 and 1.74±0.22). Sexual propagation of cassava is possible. Lateral scafifying the seeds until the inside of the tegument with exposure of the endosperm with the caruncle intact (LS) and Scarifying the of caruncle until the inside of the tegument (SC) were more efficient seedling emergence and in counting normal cassava seedlings. Soaking seeds in sulphuric acid (AS10; AS20 and AS30) does not overcome the dormancy of cassava seeds. |
id |
UFRR-4_388c0b2d446449fde145f9b49eaae4d8 |
---|---|
oai_identifier_str |
oai:oai.revista.ufrr.br:article/7810 |
network_acronym_str |
UFRR-4 |
network_name_str |
Agro@mbiente on-line |
repository_id_str |
|
spelling |
Methods for overcoming dormancy in cassava seedsSeed scarification. Breaking dormancy. Seed propagation. Manihot esculenta Crantz.The propagation of cassava via seminal is an option but faces problems due to dormancy and slow germination. Therefore, the objective was to evaluate the effect of pre-germination treatments, on overcoming Manihot esculenta seed dormancy, clone Gabriela, cultivated in Roraima, Brazil. The experiment was a completely randomized design, with four replicates of 25 seeds, each in seven treatments: intact seeds (CONTROL); lateral scarification the seed (LS); removal of the caruncle (RC); scarification of the caruncle (SC); immersion of the seeds in sulphuric acid for 10 minutes (SA10); for 20 minutes (SA20) and for 30 minutes (SA30). The seeds were sown in trays containing river sand, washed and passed through a 2 mm mesh sieve. The following variables were analyzed: seedling emergence (SE), average emergence time (MET), emergence speed index (ESI), percentage of firm seeds (PFS), percentage of hard seeds (PHS) and percentage of deteriorated seeds (PSDET). The LS (89±7%) and SC (82±5%) treatments were superior to the others, obtaining the shortest MET (11.7±0.38 and 12.8±0.69 days, respectively) and consequently the highest IVE (1.55±0.22 and 1.74±0.22). Sexual propagation of cassava is possible. Lateral scafifying the seeds until the inside of the tegument with exposure of the endosperm with the caruncle intact (LS) and Scarifying the of caruncle until the inside of the tegument (SC) were more efficient seedling emergence and in counting normal cassava seedlings. Soaking seeds in sulphuric acid (AS10; AS20 and AS30) does not overcome the dormancy of cassava seeds.UFRR2023-11-29info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://revista.ufrr.br/agroambiente/article/view/781010.18227/1982-8470ragro.v17i00.7810AGRO@MBIENTE ON-LINE JOURNALRAGR; Vol. 17 (2023); 1-16REVISTA AGRO@MBIENTE ON-LINE; Vol. 17 (2023); 1-16REVISTA AGRO@MBIENTE ON-LINE; v. 17 (2023); 1-161982-8470reponame:Agro@mbiente on-lineinstname:Universidade Federal de Roraima (UFRR)instacron:UFRRporhttps://revista.ufrr.br/agroambiente/article/view/7810/3908Copyright (c) 2023 REVISTA AGRO@MBIENTE ON-LINEhttps://creativecommons.org/licenses/by-nc-nd/4.0info:eu-repo/semantics/openAccessKlis Ximenes, CarlaArcanjo Alves, Jose Maria Bardales-Lozano, RicardoCristina Oliveira Silva, Deyse Alves Guedes, YenaraFernandes Silva Dionisio, Luiz2024-01-03T16:45:55Zoai:oai.revista.ufrr.br:article/7810Revistahttps://revista.ufrr.br/index.php/agroambientePUBhttps://revista.ufrr.br/index.php/agroambiente/oai||scpuchoa@dsi.ufrr.br|| arcanjoalves@oi.com.br1982-84701982-8470opendoar:2024-01-03T16:45:55Agro@mbiente on-line - Universidade Federal de Roraima (UFRR)false |
dc.title.none.fl_str_mv |
Methods for overcoming dormancy in cassava seeds |
title |
Methods for overcoming dormancy in cassava seeds |
spellingShingle |
Methods for overcoming dormancy in cassava seeds Klis Ximenes, Carla Seed scarification. Breaking dormancy. Seed propagation. Manihot esculenta Crantz. |
title_short |
Methods for overcoming dormancy in cassava seeds |
title_full |
Methods for overcoming dormancy in cassava seeds |
title_fullStr |
Methods for overcoming dormancy in cassava seeds |
title_full_unstemmed |
Methods for overcoming dormancy in cassava seeds |
title_sort |
Methods for overcoming dormancy in cassava seeds |
author |
Klis Ximenes, Carla |
author_facet |
Klis Ximenes, Carla Arcanjo Alves, Jose Maria Bardales-Lozano, Ricardo Cristina Oliveira Silva, Deyse Alves Guedes, Yenara Fernandes Silva Dionisio, Luiz |
author_role |
author |
author2 |
Arcanjo Alves, Jose Maria Bardales-Lozano, Ricardo Cristina Oliveira Silva, Deyse Alves Guedes, Yenara Fernandes Silva Dionisio, Luiz |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Klis Ximenes, Carla Arcanjo Alves, Jose Maria Bardales-Lozano, Ricardo Cristina Oliveira Silva, Deyse Alves Guedes, Yenara Fernandes Silva Dionisio, Luiz |
dc.subject.por.fl_str_mv |
Seed scarification. Breaking dormancy. Seed propagation. Manihot esculenta Crantz. |
topic |
Seed scarification. Breaking dormancy. Seed propagation. Manihot esculenta Crantz. |
description |
The propagation of cassava via seminal is an option but faces problems due to dormancy and slow germination. Therefore, the objective was to evaluate the effect of pre-germination treatments, on overcoming Manihot esculenta seed dormancy, clone Gabriela, cultivated in Roraima, Brazil. The experiment was a completely randomized design, with four replicates of 25 seeds, each in seven treatments: intact seeds (CONTROL); lateral scarification the seed (LS); removal of the caruncle (RC); scarification of the caruncle (SC); immersion of the seeds in sulphuric acid for 10 minutes (SA10); for 20 minutes (SA20) and for 30 minutes (SA30). The seeds were sown in trays containing river sand, washed and passed through a 2 mm mesh sieve. The following variables were analyzed: seedling emergence (SE), average emergence time (MET), emergence speed index (ESI), percentage of firm seeds (PFS), percentage of hard seeds (PHS) and percentage of deteriorated seeds (PSDET). The LS (89±7%) and SC (82±5%) treatments were superior to the others, obtaining the shortest MET (11.7±0.38 and 12.8±0.69 days, respectively) and consequently the highest IVE (1.55±0.22 and 1.74±0.22). Sexual propagation of cassava is possible. Lateral scafifying the seeds until the inside of the tegument with exposure of the endosperm with the caruncle intact (LS) and Scarifying the of caruncle until the inside of the tegument (SC) were more efficient seedling emergence and in counting normal cassava seedlings. Soaking seeds in sulphuric acid (AS10; AS20 and AS30) does not overcome the dormancy of cassava seeds. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-11-29 |
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://revista.ufrr.br/agroambiente/article/view/7810 10.18227/1982-8470ragro.v17i00.7810 |
url |
https://revista.ufrr.br/agroambiente/article/view/7810 |
identifier_str_mv |
10.18227/1982-8470ragro.v17i00.7810 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://revista.ufrr.br/agroambiente/article/view/7810/3908 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2023 REVISTA AGRO@MBIENTE ON-LINE https://creativecommons.org/licenses/by-nc-nd/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2023 REVISTA AGRO@MBIENTE ON-LINE https://creativecommons.org/licenses/by-nc-nd/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
UFRR |
publisher.none.fl_str_mv |
UFRR |
dc.source.none.fl_str_mv |
AGRO@MBIENTE ON-LINE JOURNALRAGR; Vol. 17 (2023); 1-16 REVISTA AGRO@MBIENTE ON-LINE; Vol. 17 (2023); 1-16 REVISTA AGRO@MBIENTE ON-LINE; v. 17 (2023); 1-16 1982-8470 reponame:Agro@mbiente on-line instname:Universidade Federal de Roraima (UFRR) instacron:UFRR |
instname_str |
Universidade Federal de Roraima (UFRR) |
instacron_str |
UFRR |
institution |
UFRR |
reponame_str |
Agro@mbiente on-line |
collection |
Agro@mbiente on-line |
repository.name.fl_str_mv |
Agro@mbiente on-line - Universidade Federal de Roraima (UFRR) |
repository.mail.fl_str_mv |
||scpuchoa@dsi.ufrr.br|| arcanjoalves@oi.com.br |
_version_ |
1799770041753796608 |