Preferences and demographic parameters of cowpea aphid on advanced lines of semiprostrate cowpea
Abstract: The objective of this work was to determine the preference and the demographic parameters of cowpea aphid (Aphis craccivora) in advanced lines of semiprostrate cowpea (Vigna unguiculata), and to verify both the existance and type of plant resistance to this insect attack. Aphid preference...
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| Format: | Article |
| Language: | English |
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Embrapa Informação Tecnológica
2019-10-01
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| Series: | Pesquisa Agropecuária Brasileira |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2019000101901&tlng=en |
| _version_ | 1818987564010307584 |
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| author | Leandro Carvalho da Silva Daniel Rodrigues Nere Ervino Bleicher Eraldo José Madureira Tavares Antônio Vinícius Correa Barbosa |
| author_facet | Leandro Carvalho da Silva Daniel Rodrigues Nere Ervino Bleicher Eraldo José Madureira Tavares Antônio Vinícius Correa Barbosa |
| author_sort | Leandro Carvalho da Silva |
| collection | DOAJ |
| description | Abstract: The objective of this work was to determine the preference and the demographic parameters of cowpea aphid (Aphis craccivora) in advanced lines of semiprostrate cowpea (Vigna unguiculata), and to verify both the existance and type of plant resistance to this insect attack. Aphid preference to 20 cowpea genotypes was tested in a randomized complete block design, with six replicates. Lines showing the highest levels of resistance and susceptibility in the preference tests were selected for use in the demographic parameter tests. Based on aphid birth rate and mortality, fertility life tables were constructed. The MNCO4-792F-123 line was classified as resistant. The lowest values for cowpea aphid intrinsic and finite growth rates were obtained for the MNCO4-792F-123, and the highest ones for MNCO4-782F-108 and 'BRS Novaera' genotypes, whose levels exceeded those of 'Vita 7', the standard genotype for susceptibility. The MNCO4-792F-123 line is the least favorable for the development of cowpea aphid, while MNCO4-782F-108 and 'BRS Novaera' are the most susceptible ones. |
| first_indexed | 2024-12-20T19:08:41Z |
| format | Article |
| id | doaj.art-a68c29df65f145be93326835fe359a61 |
| institution | Directory Open Access Journal |
| issn | 1678-3921 |
| language | English |
| last_indexed | 2024-12-20T19:08:41Z |
| publishDate | 2019-10-01 |
| publisher | Embrapa Informação Tecnológica |
| record_format | Article |
| series | Pesquisa Agropecuária Brasileira |
| spelling | doaj.art-a68c29df65f145be93326835fe359a612022-12-21T19:29:14ZengEmbrapa Informação TecnológicaPesquisa Agropecuária Brasileira1678-39212019-10-015410.1590/s1678-3921.pab2019.v54.00230Preferences and demographic parameters of cowpea aphid on advanced lines of semiprostrate cowpeaLeandro Carvalho da Silvahttps://orcid.org/0000-0002-2998-3325Daniel Rodrigues NereErvino Bleicherhttps://orcid.org/0000-0003-3820-7114Eraldo José Madureira Tavareshttps://orcid.org/0000-0003-2074-7710Antônio Vinícius Correa Barbosahttps://orcid.org/0000-0001-9961-2485Abstract: The objective of this work was to determine the preference and the demographic parameters of cowpea aphid (Aphis craccivora) in advanced lines of semiprostrate cowpea (Vigna unguiculata), and to verify both the existance and type of plant resistance to this insect attack. Aphid preference to 20 cowpea genotypes was tested in a randomized complete block design, with six replicates. Lines showing the highest levels of resistance and susceptibility in the preference tests were selected for use in the demographic parameter tests. Based on aphid birth rate and mortality, fertility life tables were constructed. The MNCO4-792F-123 line was classified as resistant. The lowest values for cowpea aphid intrinsic and finite growth rates were obtained for the MNCO4-792F-123, and the highest ones for MNCO4-782F-108 and 'BRS Novaera' genotypes, whose levels exceeded those of 'Vita 7', the standard genotype for susceptibility. The MNCO4-792F-123 line is the least favorable for the development of cowpea aphid, while MNCO4-782F-108 and 'BRS Novaera' are the most susceptible ones.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2019000101901&tlng=enAphis craccivoraVigna unguiculataplant resistance |
| spellingShingle | Leandro Carvalho da Silva Daniel Rodrigues Nere Ervino Bleicher Eraldo José Madureira Tavares Antônio Vinícius Correa Barbosa Preferences and demographic parameters of cowpea aphid on advanced lines of semiprostrate cowpea Pesquisa Agropecuária Brasileira Aphis craccivora Vigna unguiculata plant resistance |
| title | Preferences and demographic parameters of cowpea aphid on advanced lines of semiprostrate cowpea |
| title_full | Preferences and demographic parameters of cowpea aphid on advanced lines of semiprostrate cowpea |
| title_fullStr | Preferences and demographic parameters of cowpea aphid on advanced lines of semiprostrate cowpea |
| title_full_unstemmed | Preferences and demographic parameters of cowpea aphid on advanced lines of semiprostrate cowpea |
| title_short | Preferences and demographic parameters of cowpea aphid on advanced lines of semiprostrate cowpea |
| title_sort | preferences and demographic parameters of cowpea aphid on advanced lines of semiprostrate cowpea |
| topic | Aphis craccivora Vigna unguiculata plant resistance |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2019000101901&tlng=en |
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