YIELD LOSSES BY STEM BORER (Diatraea saccharalis Fab. 1794) (LEPIDOPTERA: PYRALIDAE) IN UPLAND RICE GENOTYPES

Detalhes bibliográficos
Autor(a) principal: Ferreira, Evane
Data de Publicação: 2007
Outros Autores: Barrigossi, José Alexandre Freitas, Santos, Alberto Baêta dos
Tipo de documento: Artigo
Idioma: por
Título da fonte: Pesquisa Agropecuária Tropical (Online)
Texto Completo: https://revistas.ufg.br/pat/article/view/2332
Resumo: The impact of the Diatraea saccharalis natural infestation on yield of 24 genotypes of upland rice was studied in an experiment carried out in field conditions. The attack of D. saccharalis on stems and its effect on spikelet weight was determined using a yield loss index and by regression analysis. The index used quantifies the spikelet mass loss per bored stem in relation to spikelet mass no bored stem. The estimates obtained with these two methods were different. Less than 10% of genotypes showed a linear relationship between the infestation and stem borer damage. Estimated yield losses based on the index seemed more appropriate to the conditions of the experiment. Infestations by D. saccharalis did not visibly affect the weight of spikelets of five genotypes, caused a small reduction in two genotypes, and caused economic losses in the most of them (17 genotypes). The CNAs9023 genotype was the least infested and presented the highest weight of spikelets, and showed more resistance than CNAs9028, which was more infested and produced less. KEY-WORDS: Upland rice; stem borer; sampling; genotype evaluation.
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spelling YIELD LOSSES BY STEM BORER (Diatraea saccharalis Fab. 1794) (LEPIDOPTERA: PYRALIDAE) IN UPLAND RICE GENOTYPESPERDAS DE PRODUÇÃO PELA BROCA-DO-COLMO (Diatraea saccharalis Fabr. 1794) (LEPIDOPTERA: PYRALIDAE) EM GENÓTIPOS DE ARROZ DE TERRAS ALTASUpland ricestem borersamplinggenotype evaluationArroz de terras altasbroca do colmoamostragemavaliação de genótipos The impact of the Diatraea saccharalis natural infestation on yield of 24 genotypes of upland rice was studied in an experiment carried out in field conditions. The attack of D. saccharalis on stems and its effect on spikelet weight was determined using a yield loss index and by regression analysis. The index used quantifies the spikelet mass loss per bored stem in relation to spikelet mass no bored stem. The estimates obtained with these two methods were different. Less than 10% of genotypes showed a linear relationship between the infestation and stem borer damage. Estimated yield losses based on the index seemed more appropriate to the conditions of the experiment. Infestations by D. saccharalis did not visibly affect the weight of spikelets of five genotypes, caused a small reduction in two genotypes, and caused economic losses in the most of them (17 genotypes). The CNAs9023 genotype was the least infested and presented the highest weight of spikelets, and showed more resistance than CNAs9028, which was more infested and produced less. KEY-WORDS: Upland rice; stem borer; sampling; genotype evaluation. Estudou-se o efeito da infestação natural de Diatraea saccharalis na produção de espiguetas de 24 genótipos de arroz de terras altas, em um experimento de campo. O efeito de colmos infestados pelas lagartas D. saccharalis na massa de espiguetas de amostras e da área útil das parcelas foi estimado por um índice de perda e por análise de regressão. O índice utilizado quantifica a perda de massa de espiguetas por colmo brocado em relação à massa de espiguetas de colmo não brocado. As estimativas obtidas pelos dois métodos foram discrepantes. Menos de 10% dos genótipos manifestaram relação linear ou quadrática entre a infestação e o dano da broca-do-colmo. Perdas calculadas por esse índice mostraram-se mais adequadas às condições do experimento. A infestação de D. saccharalis aparentemente não afetou a massa de espiguetas em cinco dos genótipos, causou pequenas reduções em dois genótipos e, na maioria deles (17 genótipos), causou reduções de importância econômica. O genótipo CNAs9023 teve a menor infestação e a maior massa de espiguetas, demonstrando maior resistência em comparação à linhagem CNAs9028, que foi o genótipo mais infestado e com menor produção. PALAVRAS-CHAVE: Arroz de terras altas; broca do colmo; amostragem; avaliação de genótipos.Escola de Agronomia - Universidade Federal de Goiás2007-11-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionAvaliado por paresPesquisa experimentalapplication/savehttps://revistas.ufg.br/pat/article/view/2332Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; v. 34, n. 2, May/Aug. 2004; 99-103Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); v. 34, n. 2, mai./ago. 2004; 99-103Pesquisa Agropecuária Tropical; v. 34, n. 2, mai./ago. 2004; 99-1031983-4063reponame:Pesquisa Agropecuária Tropical (Online)instname:Universidade Federal de Goiás (UFG)instacron:UFGporhttps://revistas.ufg.br/pat/article/view/2332/2299Ferreira, EvaneBarrigossi, José Alexandre FreitasSantos, Alberto Baêta dosinfo:eu-repo/semantics/openAccess2020-02-26T23:58:39Zoai:ojs.revistas.ufg.br:article/2332Revistahttps://revistas.ufg.br/patPUBhttps://revistas.ufg.br/pat/oaiaseleguini.pat@gmail.com||mgoes@agro.ufg.br1983-40631517-6398opendoar:2024-05-21T19:55:04.158956Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)true
dc.title.none.fl_str_mv YIELD LOSSES BY STEM BORER (Diatraea saccharalis Fab. 1794) (LEPIDOPTERA: PYRALIDAE) IN UPLAND RICE GENOTYPES
PERDAS DE PRODUÇÃO PELA BROCA-DO-COLMO (Diatraea saccharalis Fabr. 1794) (LEPIDOPTERA: PYRALIDAE) EM GENÓTIPOS DE ARROZ DE TERRAS ALTAS
title YIELD LOSSES BY STEM BORER (Diatraea saccharalis Fab. 1794) (LEPIDOPTERA: PYRALIDAE) IN UPLAND RICE GENOTYPES
spellingShingle YIELD LOSSES BY STEM BORER (Diatraea saccharalis Fab. 1794) (LEPIDOPTERA: PYRALIDAE) IN UPLAND RICE GENOTYPES
Ferreira, Evane
Upland rice
stem borer
sampling
genotype evaluation
Arroz de terras altas
broca do colmo
amostragem
avaliação de genótipos
title_short YIELD LOSSES BY STEM BORER (Diatraea saccharalis Fab. 1794) (LEPIDOPTERA: PYRALIDAE) IN UPLAND RICE GENOTYPES
title_full YIELD LOSSES BY STEM BORER (Diatraea saccharalis Fab. 1794) (LEPIDOPTERA: PYRALIDAE) IN UPLAND RICE GENOTYPES
title_fullStr YIELD LOSSES BY STEM BORER (Diatraea saccharalis Fab. 1794) (LEPIDOPTERA: PYRALIDAE) IN UPLAND RICE GENOTYPES
title_full_unstemmed YIELD LOSSES BY STEM BORER (Diatraea saccharalis Fab. 1794) (LEPIDOPTERA: PYRALIDAE) IN UPLAND RICE GENOTYPES
title_sort YIELD LOSSES BY STEM BORER (Diatraea saccharalis Fab. 1794) (LEPIDOPTERA: PYRALIDAE) IN UPLAND RICE GENOTYPES
author Ferreira, Evane
author_facet Ferreira, Evane
Barrigossi, José Alexandre Freitas
Santos, Alberto Baêta dos
author_role author
author2 Barrigossi, José Alexandre Freitas
Santos, Alberto Baêta dos
author2_role author
author
dc.contributor.author.fl_str_mv Ferreira, Evane
Barrigossi, José Alexandre Freitas
Santos, Alberto Baêta dos
dc.subject.por.fl_str_mv Upland rice
stem borer
sampling
genotype evaluation
Arroz de terras altas
broca do colmo
amostragem
avaliação de genótipos
topic Upland rice
stem borer
sampling
genotype evaluation
Arroz de terras altas
broca do colmo
amostragem
avaliação de genótipos
description The impact of the Diatraea saccharalis natural infestation on yield of 24 genotypes of upland rice was studied in an experiment carried out in field conditions. The attack of D. saccharalis on stems and its effect on spikelet weight was determined using a yield loss index and by regression analysis. The index used quantifies the spikelet mass loss per bored stem in relation to spikelet mass no bored stem. The estimates obtained with these two methods were different. Less than 10% of genotypes showed a linear relationship between the infestation and stem borer damage. Estimated yield losses based on the index seemed more appropriate to the conditions of the experiment. Infestations by D. saccharalis did not visibly affect the weight of spikelets of five genotypes, caused a small reduction in two genotypes, and caused economic losses in the most of them (17 genotypes). The CNAs9023 genotype was the least infested and presented the highest weight of spikelets, and showed more resistance than CNAs9028, which was more infested and produced less. KEY-WORDS: Upland rice; stem borer; sampling; genotype evaluation.
publishDate 2007
dc.date.none.fl_str_mv 2007-11-10
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Avaliado por pares
Pesquisa experimental
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://revistas.ufg.br/pat/article/view/2332
url https://revistas.ufg.br/pat/article/view/2332
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://revistas.ufg.br/pat/article/view/2332/2299
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. 34, n. 2, May/Aug. 2004; 99-103
Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); v. 34, n. 2, mai./ago. 2004; 99-103
Pesquisa Agropecuária Tropical; v. 34, n. 2, mai./ago. 2004; 99-103
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
_version_ 1799874813963010048

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