Inbreeding depression in early dwarf type progenies of cashew var. Nanum
Autor(a) principal: | |
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Data de Publicação: | 1998 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Pesquisa Agropecuária Brasileira (Online) |
Texto Completo: | https://seer.sct.embrapa.br/index.php/pab/article/view/4863 |
Resumo: | The use of seeds for the setting of cashew (Anacardium occidentale L.) orchard leads to uneven agronomic and commercial plant features such as plant vigor, yield, nut weight, and color, size and quality of the fruit. Aiming to estimate the inbreeding depression rate in cashew plants, data of vegetative characters and yield traits of 12, 18 and 29 months dwarf cashew progenies were obtained: selfed, open pollinated and controlled pollinated. The main results were: high germination percentual in all groups of plants (81% to 94%), with the exception of self pollinated seeds of CCP 1001 which attained only 63%; the damaging effects of endogamy were more pronounced in the yield and number of seeds; the effects on seed yield per plant were 37.6% in the CCP 76 clone, whereas in the CCP 1001 clone a 48% decrease was observed. The other trait affected by endogamy was the number of seed per plant which was 25.3% and 43.3% for CCP 76 and CCP 1001, respectively. The endogamy effects on cashew are expressed by decreasing both seed germination and mean yield of selfed seeds. |
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Inbreeding depression in early dwarf type progenies of cashew var. NanumDepressão por endogamia em progênies de cajueiro anão precoce var. NanumAnacardium occidentale; progenies; open pollinated; selfedAnacardium occidentale; polinização livre; autofecundaçãoThe use of seeds for the setting of cashew (Anacardium occidentale L.) orchard leads to uneven agronomic and commercial plant features such as plant vigor, yield, nut weight, and color, size and quality of the fruit. Aiming to estimate the inbreeding depression rate in cashew plants, data of vegetative characters and yield traits of 12, 18 and 29 months dwarf cashew progenies were obtained: selfed, open pollinated and controlled pollinated. The main results were: high germination percentual in all groups of plants (81% to 94%), with the exception of self pollinated seeds of CCP 1001 which attained only 63%; the damaging effects of endogamy were more pronounced in the yield and number of seeds; the effects on seed yield per plant were 37.6% in the CCP 76 clone, whereas in the CCP 1001 clone a 48% decrease was observed. The other trait affected by endogamy was the number of seed per plant which was 25.3% and 43.3% for CCP 76 and CCP 1001, respectively. The endogamy effects on cashew are expressed by decreasing both seed germination and mean yield of selfed seeds.O plantio de sementes de cajueiro (Anacardium occidentale L.) causa desuniformidade no porte das plantas, na produção e peso das castanhas e na qualidade, cor e peso dos pedúnculos. Com o objetivo de estimar a taxa de depressão por endogamia, foram obtidos dados de características vegetativas e de produção aos 12, 18 e 29 meses de idade das plantas, em progênies de clones de cajueiro anão precoce, originadas de autofecundações e de polinizações livres e controladas. Entre os principais resultados destacam-se: o percentual de germinação da semente foi alto em todos os grupos (81% - 94%), com exceção das sementes originadas de autofecundação do clone CCP 1001, que foi de 63%; os efeitos deletérios da endogamia foram mais pronunciados na produção e número de castanhas; os efeitos no caráter produção de castanha/planta foram de 37,6% no clone CCP 76, enquanto no clone CCP 1001 a redução foi de 48%. Outro caráter afetado pela endogamia foi o número de castanhas, com 25,3% e 43,3%, respectivamente, no tocante aos clones CCP 76 e CCP 1001. Os efeitos endogâmicos no cajueiro se expressam reduzindo o percentual de germinação das sementes e reduzindo principalmente a produção média de castanhas resultantes de autofecundação.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraRodrigues de Paiva, Joãode Moura Barros, LeviRibeiro Crisóstomo, JoãoPratagil Pereira de Araújo, JoãoGuimarães Rossetti, AdroaldoJaime Vasconcelos Cavalcante, JoséMaria Felipe, Edilza1998-04-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/4863Pesquisa Agropecuaria Brasileira; v.33, n.4, abr. 1998; 425-431Pesquisa Agropecuária Brasileira; v.33, n.4, abr. 1998; 425-4311678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/4863/6993info:eu-repo/semantics/openAccess2014-11-21T17:07:28Zoai:ojs.seer.sct.embrapa.br:article/4863Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-11-21T17:07:28Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Inbreeding depression in early dwarf type progenies of cashew var. Nanum Depressão por endogamia em progênies de cajueiro anão precoce var. Nanum |
title |
Inbreeding depression in early dwarf type progenies of cashew var. Nanum |
spellingShingle |
Inbreeding depression in early dwarf type progenies of cashew var. Nanum Rodrigues de Paiva, João Anacardium occidentale; progenies; open pollinated; selfed Anacardium occidentale; polinização livre; autofecundação |
title_short |
Inbreeding depression in early dwarf type progenies of cashew var. Nanum |
title_full |
Inbreeding depression in early dwarf type progenies of cashew var. Nanum |
title_fullStr |
Inbreeding depression in early dwarf type progenies of cashew var. Nanum |
title_full_unstemmed |
Inbreeding depression in early dwarf type progenies of cashew var. Nanum |
title_sort |
Inbreeding depression in early dwarf type progenies of cashew var. Nanum |
author |
Rodrigues de Paiva, João |
author_facet |
Rodrigues de Paiva, João de Moura Barros, Levi Ribeiro Crisóstomo, João Pratagil Pereira de Araújo, João Guimarães Rossetti, Adroaldo Jaime Vasconcelos Cavalcante, José Maria Felipe, Edilza |
author_role |
author |
author2 |
de Moura Barros, Levi Ribeiro Crisóstomo, João Pratagil Pereira de Araújo, João Guimarães Rossetti, Adroaldo Jaime Vasconcelos Cavalcante, José Maria Felipe, Edilza |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
|
dc.contributor.author.fl_str_mv |
Rodrigues de Paiva, João de Moura Barros, Levi Ribeiro Crisóstomo, João Pratagil Pereira de Araújo, João Guimarães Rossetti, Adroaldo Jaime Vasconcelos Cavalcante, José Maria Felipe, Edilza |
dc.subject.por.fl_str_mv |
Anacardium occidentale; progenies; open pollinated; selfed Anacardium occidentale; polinização livre; autofecundação |
topic |
Anacardium occidentale; progenies; open pollinated; selfed Anacardium occidentale; polinização livre; autofecundação |
description |
The use of seeds for the setting of cashew (Anacardium occidentale L.) orchard leads to uneven agronomic and commercial plant features such as plant vigor, yield, nut weight, and color, size and quality of the fruit. Aiming to estimate the inbreeding depression rate in cashew plants, data of vegetative characters and yield traits of 12, 18 and 29 months dwarf cashew progenies were obtained: selfed, open pollinated and controlled pollinated. The main results were: high germination percentual in all groups of plants (81% to 94%), with the exception of self pollinated seeds of CCP 1001 which attained only 63%; the damaging effects of endogamy were more pronounced in the yield and number of seeds; the effects on seed yield per plant were 37.6% in the CCP 76 clone, whereas in the CCP 1001 clone a 48% decrease was observed. The other trait affected by endogamy was the number of seed per plant which was 25.3% and 43.3% for CCP 76 and CCP 1001, respectively. The endogamy effects on cashew are expressed by decreasing both seed germination and mean yield of selfed seeds. |
publishDate |
1998 |
dc.date.none.fl_str_mv |
1998-04-01 |
dc.type.none.fl_str_mv |
|
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://seer.sct.embrapa.br/index.php/pab/article/view/4863 |
url |
https://seer.sct.embrapa.br/index.php/pab/article/view/4863 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://seer.sct.embrapa.br/index.php/pab/article/view/4863/6993 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira |
publisher.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira |
dc.source.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira; v.33, n.4, abr. 1998; 425-431 Pesquisa Agropecuária Brasileira; v.33, n.4, abr. 1998; 425-431 1678-3921 0100-104x reponame:Pesquisa Agropecuária Brasileira (Online) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Pesquisa Agropecuária Brasileira (Online) |
collection |
Pesquisa Agropecuária Brasileira (Online) |
repository.name.fl_str_mv |
Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
pab@sct.embrapa.br || sct.pab@embrapa.br |
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1793416662873014272 |