Resistance of rice cultivars and lines to the lesser cornstalk borer
The preliminary study to verify the possibility of obtaining resistance in rice to the lesser cornstalk borer Elasmopalpus lignosellus (Lepidoptera phycitidae) (Zeller 1848) has indicated difference between the reaction of cultivars and lines to damage of insect, in natural conditions of infestation, until the maximum period of 162 days. The line BKN-6652-249-1-1, was the most resistant and has shown 13,9% of dead plants, while the cultivar Catetão was the most damaged, with 32,6% of dead plants. It was observed that the highest concentration of the damages caused by the lesser cornstalk borer, appeared in the two months following the emergence of the plants (during the vegetative phase), existing indications that one of the reactions of the rice plants to the insect is probably a resistance of the "tolerance" type, associated with the tillering capacity of the plants after the infestation.
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Digital revista |
| Language: | por |
| Published: |
Pesquisa Agropecuaria Brasileira
2014
|
| Online Access: | https://seer.sct.embrapa.br/index.php/pab/article/view/16711 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| id |
rev-pab-br-article-16711 |
|---|---|
| record_format |
ojs |
| spelling |
rev-pab-br-article-167112014-04-15T19:28:04Z Resistance of rice cultivars and lines to the lesser cornstalk borer Resistência de cultivares e linhagens de arroz à broca-do-colo Ferreira, Evane Martins, José Francisco da Silva Zimmermann, Francisco José Pfeilsticker upland rice; resistance; lesser cornstalk borer; Elasmopalpus lignosellus; tolerance arroz de sequeiro; resistência; broca-do-colo; Elasmopalpus lignosellus; tolerância The preliminary study to verify the possibility of obtaining resistance in rice to the lesser cornstalk borer Elasmopalpus lignosellus (Lepidoptera phycitidae) (Zeller 1848) has indicated difference between the reaction of cultivars and lines to damage of insect, in natural conditions of infestation, until the maximum period of 162 days. The line BKN-6652-249-1-1, was the most resistant and has shown 13,9% of dead plants, while the cultivar Catetão was the most damaged, with 32,6% of dead plants. It was observed that the highest concentration of the damages caused by the lesser cornstalk borer, appeared in the two months following the emergence of the plants (during the vegetative phase), existing indications that one of the reactions of the rice plants to the insect is probably a resistance of the "tolerance" type, associated with the tillering capacity of the plants after the infestation. O estudo para verificar a possibilidade de obtenção de arroz resistente à broca-do-colo, Elasmopalpus lignosellus (Lepidoptera phycitidae) (Zeller 1848) indicou haver diferença entre a reação de cultivares e linhagens ao ataque da praga, em condições naturais de infestação, até um máximo de 162 dias. A linhagem BKN-6652-249-1-1 foi a mais resistente e teve 13,9% das plantas mortas, enquanto a cultivar Catetão foi a mais danificada, com 32,6% das plantas mortas. Foi observado que a maior concentração dos danos da broca-do-colo no arroz ocorre nos dois primeiros meses após a emergência das plantas (durante a fase vegetativa), havendo indicações de que uma das reações do arroz à praga é, provavelmente, uma resistência do tipo "tolerância", associada à capacidade de perfilhamento das plantas. Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira 2014-04-15 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://seer.sct.embrapa.br/index.php/pab/article/view/16711 Pesquisa Agropecuaria Brasileira; v.14, n.4, abr. 1979; 317-321 Pesquisa Agropecuária Brasileira; v.14, n.4, abr. 1979; 317-321 1678-3921 0100-104x por https://seer.sct.embrapa.br/index.php/pab/article/view/16711/11041 |
| institution |
EMBRAPA |
| collection |
OJS |
| country |
Brasil |
| countrycode |
BR |
| component |
Revista |
| access |
En linea |
| databasecode |
rev-pab-br |
| tag |
revista |
| region |
America del Sur |
| libraryname |
Sistema de bibliotecas de EMBRAPA |
| language |
por |
| format |
Digital |
| author |
Ferreira, Evane Martins, José Francisco da Silva Zimmermann, Francisco José Pfeilsticker |
| spellingShingle |
Ferreira, Evane Martins, José Francisco da Silva Zimmermann, Francisco José Pfeilsticker Resistance of rice cultivars and lines to the lesser cornstalk borer |
| author_facet |
Ferreira, Evane Martins, José Francisco da Silva Zimmermann, Francisco José Pfeilsticker |
| author_sort |
Ferreira, Evane |
| title |
Resistance of rice cultivars and lines to the lesser cornstalk borer |
| title_short |
Resistance of rice cultivars and lines to the lesser cornstalk borer |
| title_full |
Resistance of rice cultivars and lines to the lesser cornstalk borer |
| title_fullStr |
Resistance of rice cultivars and lines to the lesser cornstalk borer |
| title_full_unstemmed |
Resistance of rice cultivars and lines to the lesser cornstalk borer |
| title_sort |
resistance of rice cultivars and lines to the lesser cornstalk borer |
| description |
The preliminary study to verify the possibility of obtaining resistance in rice to the lesser cornstalk borer Elasmopalpus lignosellus (Lepidoptera phycitidae) (Zeller 1848) has indicated difference between the reaction of cultivars and lines to damage of insect, in natural conditions of infestation, until the maximum period of 162 days. The line BKN-6652-249-1-1, was the most resistant and has shown 13,9% of dead plants, while the cultivar Catetão was the most damaged, with 32,6% of dead plants. It was observed that the highest concentration of the damages caused by the lesser cornstalk borer, appeared in the two months following the emergence of the plants (during the vegetative phase), existing indications that one of the reactions of the rice plants to the insect is probably a resistance of the "tolerance" type, associated with the tillering capacity of the plants after the infestation. |
| publisher |
Pesquisa Agropecuaria Brasileira |
| publishDate |
2014 |
| url |
https://seer.sct.embrapa.br/index.php/pab/article/view/16711 |
| work_keys_str_mv |
AT ferreiraevane resistanceofricecultivarsandlinestothelessercornstalkborer AT martinsjosefranciscodasilva resistanceofricecultivarsandlinestothelessercornstalkborer AT zimmermannfranciscojosepfeilsticker resistanceofricecultivarsandlinestothelessercornstalkborer AT ferreiraevane resistenciadecultivareselinhagensdearrozabrocadocolo AT martinsjosefranciscodasilva resistenciadecultivareselinhagensdearrozabrocadocolo AT zimmermannfranciscojosepfeilsticker resistenciadecultivareselinhagensdearrozabrocadocolo |
| _version_ |
1813449060936318976 |