Preference and reproductivity of maize weevil, as resistance factors in some corn populations and inbreds

Detalhes bibliográficos
Autor(a) principal: Santos, Jamilton P.
Data de Publicação: 2014
Outros Autores: Foster, John E.
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/17099
Resumo: The objective of this research was to determine if the populations studied could transmite their factor for resistance and susceptibility to their descendents. The experimental corn consisted of 20 different genotypes, including resistant and susceptible populations and inbreds. The infestation was made artificially. The experimental design was a randomized complete block with four replications, and three tests were established. Firstly, the distribution of the maize weevil over sample of one corn genotype, in plastic boxes, was studied. Secondly, the weevils were given a free-choice of 20 different genotypes, and the number of weevil attracted and the number of  offsprings of the first generation emerged from each corn sample were observed. At last, the weevils were confined in the plastic boxes with the corn samples, and the number of offsprings emerged from each sample was observed. The results can be summarized as follows: a) the maize weevils distributed themselves evenly over the samples of same corn genotype; b) when the maize weevil had a free-choice of a corn genotype, they showed great preference for certain genotypes; c) some populations and respective inbred were resistant; d) other populations were resistant, but their respective inbred were susceptible; e) also, some populations were more susceptible than their respective inbreds.
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spelling Preference and reproductivity of maize weevil, as resistance factors in some corn populations and inbredsPreferência e reprodutividade do gorgulho do milho como fator de resistência em algumas populações e linhagens de milhoplant resistance; maize weevil resistance; Sitophilus Zea mays; stored grain pestsresistência de plantas; resistência de milho ao gorgulho; pragas do milho; Sitophilus Zeamais; pragas de grãos armazenadosThe objective of this research was to determine if the populations studied could transmite their factor for resistance and susceptibility to their descendents. The experimental corn consisted of 20 different genotypes, including resistant and susceptible populations and inbreds. The infestation was made artificially. The experimental design was a randomized complete block with four replications, and three tests were established. Firstly, the distribution of the maize weevil over sample of one corn genotype, in plastic boxes, was studied. Secondly, the weevils were given a free-choice of 20 different genotypes, and the number of weevil attracted and the number of  offsprings of the first generation emerged from each corn sample were observed. At last, the weevils were confined in the plastic boxes with the corn samples, and the number of offsprings emerged from each sample was observed. The results can be summarized as follows: a) the maize weevils distributed themselves evenly over the samples of same corn genotype; b) when the maize weevil had a free-choice of a corn genotype, they showed great preference for certain genotypes; c) some populations and respective inbred were resistant; d) other populations were resistant, but their respective inbred were susceptible; e) also, some populations were more susceptible than their respective inbreds.Neste trabalho procurou-se determinar se as populações de milho estudadas, algumas consideradas como resistentes e outras como susceptíveis, transmitem estas características aos seus descendentes. No material estudado participaram 20 genótipos diferentes, incluindo populações e linhagens, resistentes e susceptíveis. A infestação foi feita artificialmente. Este trabalho foi conduzido em três testes, em blocos casualizados e quatro repetições. No primeiro teste estudou-se a distribuição dos gorgulhos sobre amostras do mesmo tipo de milho, acondicionadas em caixinhas plásticas. No segundo, estudou-se a preferência dos gorgulhos pelos 20 diferentes genótipos de milho em teste de livre escolha, sendo anotados o número de gorgulhos atraídos para cada amostra e o número de gorgulhos emergidos de cada amostra. Por último, os gorgulhos foram confinados nas caixinhas plásticas juntamente com as amostras de milho, sendo anotado o número de gorgulhos emergidos de cada amostra. Os resultados deste estudo podem ser resumidos da seguinte forma: a) os gorgulhos do milho distribuíram-se uniformemente sobre amostras de um mesmo genótipo de milho; b) quando os gorgulhos tiveram livre escolha, eles mostraram grande preferência por certos genótipos de milho; c) algumas populações e respectivas linhagens foram resistentes; d) outras populações foram resistentes, mas, suas respectivas linhagens foram altamente susceptíveis; e) também, algumas populações foram mais susceptíveis do que suas respectivas linhagens.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraSantos, Jamilton P.Foster, John E.2014-04-15info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/17099Pesquisa Agropecuaria Brasileira; v.16, n.6, jun. 1981; 769-775Pesquisa Agropecuária Brasileira; v.16, n.6, jun. 1981; 769-7751678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/17099/11413info:eu-repo/semantics/openAccess2014-04-15T19:44:59Zoai:ojs.seer.sct.embrapa.br:article/17099Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-04-15T19:44:59Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Preference and reproductivity of maize weevil, as resistance factors in some corn populations and inbreds
Preferência e reprodutividade do gorgulho do milho como fator de resistência em algumas populações e linhagens de milho
title Preference and reproductivity of maize weevil, as resistance factors in some corn populations and inbreds
spellingShingle Preference and reproductivity of maize weevil, as resistance factors in some corn populations and inbreds
Santos, Jamilton P.
plant resistance; maize weevil resistance; Sitophilus Zea mays; stored grain pests
resistência de plantas; resistência de milho ao gorgulho; pragas do milho; Sitophilus Zeamais; pragas de grãos armazenados
title_short Preference and reproductivity of maize weevil, as resistance factors in some corn populations and inbreds
title_full Preference and reproductivity of maize weevil, as resistance factors in some corn populations and inbreds
title_fullStr Preference and reproductivity of maize weevil, as resistance factors in some corn populations and inbreds
title_full_unstemmed Preference and reproductivity of maize weevil, as resistance factors in some corn populations and inbreds
title_sort Preference and reproductivity of maize weevil, as resistance factors in some corn populations and inbreds
author Santos, Jamilton P.
author_facet Santos, Jamilton P.
Foster, John E.
author_role author
author2 Foster, John E.
author2_role author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Santos, Jamilton P.
Foster, John E.
dc.subject.por.fl_str_mv plant resistance; maize weevil resistance; Sitophilus Zea mays; stored grain pests
resistência de plantas; resistência de milho ao gorgulho; pragas do milho; Sitophilus Zeamais; pragas de grãos armazenados
topic plant resistance; maize weevil resistance; Sitophilus Zea mays; stored grain pests
resistência de plantas; resistência de milho ao gorgulho; pragas do milho; Sitophilus Zeamais; pragas de grãos armazenados
description The objective of this research was to determine if the populations studied could transmite their factor for resistance and susceptibility to their descendents. The experimental corn consisted of 20 different genotypes, including resistant and susceptible populations and inbreds. The infestation was made artificially. The experimental design was a randomized complete block with four replications, and three tests were established. Firstly, the distribution of the maize weevil over sample of one corn genotype, in plastic boxes, was studied. Secondly, the weevils were given a free-choice of 20 different genotypes, and the number of weevil attracted and the number of  offsprings of the first generation emerged from each corn sample were observed. At last, the weevils were confined in the plastic boxes with the corn samples, and the number of offsprings emerged from each sample was observed. The results can be summarized as follows: a) the maize weevils distributed themselves evenly over the samples of same corn genotype; b) when the maize weevil had a free-choice of a corn genotype, they showed great preference for certain genotypes; c) some populations and respective inbred were resistant; d) other populations were resistant, but their respective inbred were susceptible; e) also, some populations were more susceptible than their respective inbreds.
publishDate 2014
dc.date.none.fl_str_mv 2014-04-15
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/17099
url https://seer.sct.embrapa.br/index.php/pab/article/view/17099
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/17099/11413
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.16, n.6, jun. 1981; 769-775
Pesquisa Agropecuária Brasileira; v.16, n.6, jun. 1981; 769-775
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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