Hybrid rice and insect herbivores in Asia
Since the late 1970s, the area of agricultural land dedicated to hybrid rice has rapidly increased throughout Asia, particularly in China, India, and Vietnam. The pace of hybrid adoption, a generally low genetic diversity of hybrid varieties, and higher agrochemical inputs with hybrid rice compared...
| Autores principales: | , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Wiley
2013
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/165633 |
| _version_ | 1855543539822231552 |
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| author | Horgan, Finbarr G. Crisol, Eduardo |
| author_browse | Crisol, Eduardo Horgan, Finbarr G. |
| author_facet | Horgan, Finbarr G. Crisol, Eduardo |
| author_sort | Horgan, Finbarr G. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Since the late 1970s, the area of agricultural land dedicated to hybrid rice has rapidly increased throughout Asia, particularly in China, India, and Vietnam. The pace of hybrid adoption, a generally low genetic diversity of hybrid varieties, and higher agrochemical inputs with hybrid rice compared to conventional varieties has significantly changed the rice landscape. Some authors have associated these changes with an increasing incidence of damage to rice by herbivorous insects. This review examines trends in hybrid adoption in Asia, the associated problems with insect herbivores, and possible solutions to these problems. A series of hypotheses are presented to explain the increased incidence of damage as related to issues of crop susceptibility (hybrid physiology and genetics) and crop vulnerability (management‐related issues). Evidence suggests that hybrid rice has been highly vulnerable to damage from a range of insects. Inadequate attention to issues of planthopper resistance, linked with high agrochemical inputs and a new, vigorous rice type, likely contributed to high levels of planthopper damage in some hybrid rice varieties. Furthermore, hybrid susceptibility to the whitebacked planthopper, Sogatella furcifera (Horváth) (Hemiptera: Delphacidae), has been linked to the female (wild abortive‐cytoplasmic male sterile) parent of some hybrid lines. Meanwhile, a high incidence of stem borer damage to hybrids has likely resulted from the interaction of several plant traits with normal hybrid management, and particularly with the higher fertilizer applications associated with hybrid rice. Despite apparently low levels of resistance, hybrid varieties have high tolerance to herbivore damage; however, aspects of hybrid tolerance have been largely neglected in the literature, in breeding programs, and during development of pest management actions. This review suggests that research into the entomology of hybrid rice needs updating as hybrid varieties and management options continue to change over time. Pest management areas that require further research (including strategies for deployment of resistant varieties) are highlighted and a call is made for increased attention to issues of hybrid tolerance for sustainable herbivore management. |
| format | Journal Article |
| id | CGSpace165633 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2013 |
| publishDateRange | 2013 |
| publishDateSort | 2013 |
| publisher | Wiley |
| publisherStr | Wiley |
| record_format | dspace |
| spelling | CGSpace1656332024-12-22T05:45:03Z Hybrid rice and insect herbivores in Asia Horgan, Finbarr G. Crisol, Eduardo agricultural land agrochemicals breeding programmes chemical control damage disease resistance fertilizers genetic variation genetics host plants hosts hybrids literature male sterility pest control pest resistance pests plant breeding sogatella furcifera stem borers varieties Since the late 1970s, the area of agricultural land dedicated to hybrid rice has rapidly increased throughout Asia, particularly in China, India, and Vietnam. The pace of hybrid adoption, a generally low genetic diversity of hybrid varieties, and higher agrochemical inputs with hybrid rice compared to conventional varieties has significantly changed the rice landscape. Some authors have associated these changes with an increasing incidence of damage to rice by herbivorous insects. This review examines trends in hybrid adoption in Asia, the associated problems with insect herbivores, and possible solutions to these problems. A series of hypotheses are presented to explain the increased incidence of damage as related to issues of crop susceptibility (hybrid physiology and genetics) and crop vulnerability (management‐related issues). Evidence suggests that hybrid rice has been highly vulnerable to damage from a range of insects. Inadequate attention to issues of planthopper resistance, linked with high agrochemical inputs and a new, vigorous rice type, likely contributed to high levels of planthopper damage in some hybrid rice varieties. Furthermore, hybrid susceptibility to the whitebacked planthopper, Sogatella furcifera (Horváth) (Hemiptera: Delphacidae), has been linked to the female (wild abortive‐cytoplasmic male sterile) parent of some hybrid lines. Meanwhile, a high incidence of stem borer damage to hybrids has likely resulted from the interaction of several plant traits with normal hybrid management, and particularly with the higher fertilizer applications associated with hybrid rice. Despite apparently low levels of resistance, hybrid varieties have high tolerance to herbivore damage; however, aspects of hybrid tolerance have been largely neglected in the literature, in breeding programs, and during development of pest management actions. This review suggests that research into the entomology of hybrid rice needs updating as hybrid varieties and management options continue to change over time. Pest management areas that require further research (including strategies for deployment of resistant varieties) are highlighted and a call is made for increased attention to issues of hybrid tolerance for sustainable herbivore management. 2013-07 2024-12-19T12:55:17Z 2024-12-19T12:55:17Z Journal Article https://hdl.handle.net/10568/165633 en Wiley Horgan, Finbarr G.; Crisol, Eduardo. 2013. Hybrid rice and insect herbivores in Asia. Entomologia Exp Applicata, Volume 148 no. 1 p. 1-19 |
| spellingShingle | agricultural land agrochemicals breeding programmes chemical control damage disease resistance fertilizers genetic variation genetics host plants hosts hybrids literature male sterility pest control pest resistance pests plant breeding sogatella furcifera stem borers varieties Horgan, Finbarr G. Crisol, Eduardo Hybrid rice and insect herbivores in Asia |
| title | Hybrid rice and insect herbivores in Asia |
| title_full | Hybrid rice and insect herbivores in Asia |
| title_fullStr | Hybrid rice and insect herbivores in Asia |
| title_full_unstemmed | Hybrid rice and insect herbivores in Asia |
| title_short | Hybrid rice and insect herbivores in Asia |
| title_sort | hybrid rice and insect herbivores in asia |
| topic | agricultural land agrochemicals breeding programmes chemical control damage disease resistance fertilizers genetic variation genetics host plants hosts hybrids literature male sterility pest control pest resistance pests plant breeding sogatella furcifera stem borers varieties |
| url | https://hdl.handle.net/10568/165633 |
| work_keys_str_mv | AT horganfinbarrg hybridriceandinsectherbivoresinasia AT crisoleduardo hybridriceandinsectherbivoresinasia |