HETEROSIS AND COMBINING ABILITY AMONG VARIETIES OF MAIZE IN ACID SOIL

Detalhes bibliográficos
Autor(a) principal: Morello, Camilo de Lelis
Data de Publicação: 2007
Outros Autores: Miranda Filho, José Branco de, Ferreira, Josué Maldonado
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Pesquisa Agropecuária Tropical (Online)
Texto Completo: https://revistas.ufg.br/pat/article/view/2415
Resumo: Maize (Zea mays L.) cultivars tolerant to acidity and resistant to diseases have made the crop feasible in ";cerrado"; (savanna) soil. The identification of potentially useful germplasm with the above mentioned characteristics for breeding purposes was the objective of this study. Ten maize varieties (populations), previously selected for resistance to Puccinia polysora, Phaeosphaeria maydis, Physopella zeae, Exserohilum turcicum and corn stunt complex, were evaluated under the diallel crossing scheme. Varieties and crosses were evaluated in acid and low fertility soil. Analyzed traits were: ear yield (EY), plant height (PH), and ear height (EH). Varieties PMI 8701, CMS 57NF, PMI 9401 CMS 58ND and AMARILLO DENTADO DMR showed the highest yields (above 3.5 t/ ha) per se representing more than 70% in relation to check yield. Heterosis showed significance for all traits, but among the components of heterosis only average heterosis was significant for EY and specific heterosis for EH. General combining ability effects (gi) were significant for all traits, and their highest EY estimates (t/ha) were for PMI 8701 (0.150), BR 105 (0.120), CMS 59 (0.106). The cross CMS 57NF x PMI 8701, with yield of 5.11 t/ha (above both hybrid checks) and heterosis of 23.7% above mid-parent, may be indicated as a potentially useful heterotic group. Varieties PMI 8701, CMS 57NF, PMI 9401 and CMS 58ND were considered the most promising intrapopulation breeding programs, for acid soils.KEY-WORDS: Heterosis; acidity stress; combining ability; germplasm.
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spelling HETEROSIS AND COMBINING ABILITY AMONG VARIETIES OF MAIZE IN ACID SOILHETEROSE E CAPACIDADE COMBINATÓRIA ENTRE VARIEDADES DE MILHO EM SOLO ÁCIDOHeterosisacidity stresscombining abilitygermplasmHeteroseestresse de acidezcapacidade de combinaçãogermoplasma Maize (Zea mays L.) cultivars tolerant to acidity and resistant to diseases have made the crop feasible in ";cerrado"; (savanna) soil. The identification of potentially useful germplasm with the above mentioned characteristics for breeding purposes was the objective of this study. Ten maize varieties (populations), previously selected for resistance to Puccinia polysora, Phaeosphaeria maydis, Physopella zeae, Exserohilum turcicum and corn stunt complex, were evaluated under the diallel crossing scheme. Varieties and crosses were evaluated in acid and low fertility soil. Analyzed traits were: ear yield (EY), plant height (PH), and ear height (EH). Varieties PMI 8701, CMS 57NF, PMI 9401 CMS 58ND and AMARILLO DENTADO DMR showed the highest yields (above 3.5 t/ ha) per se representing more than 70% in relation to check yield. Heterosis showed significance for all traits, but among the components of heterosis only average heterosis was significant for EY and specific heterosis for EH. General combining ability effects (gi) were significant for all traits, and their highest EY estimates (t/ha) were for PMI 8701 (0.150), BR 105 (0.120), CMS 59 (0.106). The cross CMS 57NF x PMI 8701, with yield of 5.11 t/ha (above both hybrid checks) and heterosis of 23.7% above mid-parent, may be indicated as a potentially useful heterotic group. Varieties PMI 8701, CMS 57NF, PMI 9401 and CMS 58ND were considered the most promising intrapopulation breeding programs, for acid soils.KEY-WORDS: Heterosis; acidity stress; combining ability; germplasm. Cultivares de milho (Zea mays L.) com tolerância à acidez e resistência a doenças têm viabilizado o cultivo em solos sob vegetação de cerrado. A identificação de germoplasma com potencial para o melhoramento, com essas características, foi o objetivo deste estudo. Dez variedades de milho, resistentes a Puccinia polysora, Phaeosphaeria maydis, Physopella zeae, Exserohilum turcicum e complexo enfezamento, foram avaliadas em cruzamentos  dialélicos. As variedades e seus híbridos foram avaliados em solo ácido e com baixa fertilidade. Os caracteres analisados foram: peso de espigas (PE), altura da planta (AP) e altura da espiga (AE). As variedades PMI 8701, CMS 57NF, PMI 9401, CMS 58ND e AMARILLO DENTADO DMR, per se, produziram acima de 3,5 t/ha, o que equivale a mais de 70% em relação à testemunha. A heterose foi significativa para PE, AP e AE, e, entre seus componentes, também o foram a heterose específica para AE e a heterose média para PE. Os efeitos de capacidade geral de combinação (gi) foram significativos para todos os caracteres, e suas maiores estimativas para PE (t/ha) foram as de PMI 8701 (0,150), BR 105 (0,120) e CMS 59 (0,106). O híbrido interpopulacional CMS 57NF x PMI 8701, com produção média de 5,11 t/ha e 23,7% de heterose, pode ser indicado como um grupo heterótico potencial. As variedades PMI 8701, CMS 57NF, PMI 9401 e CMS 58ND foram consideradas promissoras para programas de melhoramento intrapopulacional nas condições de solo ácido. PLAVRAS-CHAVE: Heterose; estresse de acidez; capacidade de combinação; germoplasma.Escola de Agronomia - Universidade Federal de Goiás2007-11-19info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionAvaliado por paresapplication/savehttps://revistas.ufg.br/pat/article/view/2415Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; v. 32, n. 2, Jul./Dec. 2002; 89-95Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); v. 32, n. 2, jul./dez. 2002; 89-95Pesquisa Agropecuária Tropical; v. 32, n. 2, jul./dez. 2002; 89-951983-4063reponame:Pesquisa Agropecuária Tropical (Online)instname:Universidade Federal de Goiás (UFG)instacron:UFGenghttps://revistas.ufg.br/pat/article/view/2415/2394Morello, Camilo de LelisMiranda Filho, José Branco deFerreira, Josué Maldonadoinfo:eu-repo/semantics/openAccess2020-02-26T23:57:09Zoai:ojs.revistas.ufg.br:article/2415Revistahttps://revistas.ufg.br/patPUBhttps://revistas.ufg.br/pat/oaiaseleguini.pat@gmail.com||mgoes@agro.ufg.br1983-40631517-6398opendoar:2020-02-26T23:57:09Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)false
dc.title.none.fl_str_mv HETEROSIS AND COMBINING ABILITY AMONG VARIETIES OF MAIZE IN ACID SOIL
HETEROSE E CAPACIDADE COMBINATÓRIA ENTRE VARIEDADES DE MILHO EM SOLO ÁCIDO
title HETEROSIS AND COMBINING ABILITY AMONG VARIETIES OF MAIZE IN ACID SOIL
spellingShingle HETEROSIS AND COMBINING ABILITY AMONG VARIETIES OF MAIZE IN ACID SOIL
Morello, Camilo de Lelis
Heterosis
acidity stress
combining ability
germplasm
Heterose
estresse de acidez
capacidade de combinação
germoplasma
title_short HETEROSIS AND COMBINING ABILITY AMONG VARIETIES OF MAIZE IN ACID SOIL
title_full HETEROSIS AND COMBINING ABILITY AMONG VARIETIES OF MAIZE IN ACID SOIL
title_fullStr HETEROSIS AND COMBINING ABILITY AMONG VARIETIES OF MAIZE IN ACID SOIL
title_full_unstemmed HETEROSIS AND COMBINING ABILITY AMONG VARIETIES OF MAIZE IN ACID SOIL
title_sort HETEROSIS AND COMBINING ABILITY AMONG VARIETIES OF MAIZE IN ACID SOIL
author Morello, Camilo de Lelis
author_facet Morello, Camilo de Lelis
Miranda Filho, José Branco de
Ferreira, Josué Maldonado
author_role author
author2 Miranda Filho, José Branco de
Ferreira, Josué Maldonado
author2_role author
author
dc.contributor.author.fl_str_mv Morello, Camilo de Lelis
Miranda Filho, José Branco de
Ferreira, Josué Maldonado
dc.subject.por.fl_str_mv Heterosis
acidity stress
combining ability
germplasm
Heterose
estresse de acidez
capacidade de combinação
germoplasma
topic Heterosis
acidity stress
combining ability
germplasm
Heterose
estresse de acidez
capacidade de combinação
germoplasma
description Maize (Zea mays L.) cultivars tolerant to acidity and resistant to diseases have made the crop feasible in ";cerrado"; (savanna) soil. The identification of potentially useful germplasm with the above mentioned characteristics for breeding purposes was the objective of this study. Ten maize varieties (populations), previously selected for resistance to Puccinia polysora, Phaeosphaeria maydis, Physopella zeae, Exserohilum turcicum and corn stunt complex, were evaluated under the diallel crossing scheme. Varieties and crosses were evaluated in acid and low fertility soil. Analyzed traits were: ear yield (EY), plant height (PH), and ear height (EH). Varieties PMI 8701, CMS 57NF, PMI 9401 CMS 58ND and AMARILLO DENTADO DMR showed the highest yields (above 3.5 t/ ha) per se representing more than 70% in relation to check yield. Heterosis showed significance for all traits, but among the components of heterosis only average heterosis was significant for EY and specific heterosis for EH. General combining ability effects (gi) were significant for all traits, and their highest EY estimates (t/ha) were for PMI 8701 (0.150), BR 105 (0.120), CMS 59 (0.106). The cross CMS 57NF x PMI 8701, with yield of 5.11 t/ha (above both hybrid checks) and heterosis of 23.7% above mid-parent, may be indicated as a potentially useful heterotic group. Varieties PMI 8701, CMS 57NF, PMI 9401 and CMS 58ND were considered the most promising intrapopulation breeding programs, for acid soils.KEY-WORDS: Heterosis; acidity stress; combining ability; germplasm.
publishDate 2007
dc.date.none.fl_str_mv 2007-11-19
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Avaliado por pares
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://revistas.ufg.br/pat/article/view/2415
url https://revistas.ufg.br/pat/article/view/2415
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://revistas.ufg.br/pat/article/view/2415/2394
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/save
dc.publisher.none.fl_str_mv Escola de Agronomia - Universidade Federal de Goiás
publisher.none.fl_str_mv Escola de Agronomia - Universidade Federal de Goiás
dc.source.none.fl_str_mv Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; v. 32, n. 2, Jul./Dec. 2002; 89-95
Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); v. 32, n. 2, jul./dez. 2002; 89-95
Pesquisa Agropecuária Tropical; v. 32, n. 2, jul./dez. 2002; 89-95
1983-4063
reponame:Pesquisa Agropecuária Tropical (Online)
instname:Universidade Federal de Goiás (UFG)
instacron:UFG
instname_str Universidade Federal de Goiás (UFG)
instacron_str UFG
institution UFG
reponame_str Pesquisa Agropecuária Tropical (Online)
collection Pesquisa Agropecuária Tropical (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)
repository.mail.fl_str_mv aseleguini.pat@gmail.com||mgoes@agro.ufg.br
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