Effects of moisture duration and temperature on infection of Exserohilum monoceras on Echinochloa crus-galli at different growth stages
The effects of moisture duration and temperature on the infectivity of Exserohilum monoceras on Echinochloa crus-galli, an important weed in Malaysian granaries, were investigated. The results showed that E. monoceras infections were influenced by the availability of moisture and temperature. The fu...
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| Format: | Article |
| Language: | English |
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Malaysian Agricultural Research and Development Institute (MARDI)
2012
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| Online Access: | http://psasir.upm.edu.my/id/eprint/49306/1/Effects%20of%20moisture%20duration%20and%20temperature%20on%20infection%20of%20Exserohilum%20monoceras%20on%20Echinochloa%20crus-galli%20at%20different%20growth%20stages.pdf |
| _version_ | 1825930109199056896 |
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| author | Sadi, Tosiah Kadir, Jugah Meon, Sariah Juraimi, Abdul Shukor Sastroutomo, Soetikno Slamet |
| author_facet | Sadi, Tosiah Kadir, Jugah Meon, Sariah Juraimi, Abdul Shukor Sastroutomo, Soetikno Slamet |
| author_sort | Sadi, Tosiah |
| collection | UPM |
| description | The effects of moisture duration and temperature on the infectivity of Exserohilum monoceras on Echinochloa crus-galli, an important weed in Malaysian granaries, were investigated. The results showed that E. monoceras infections were influenced by the availability of moisture and temperature. The fungus needed a minimum of 12 h of humidity to cause severe disease on the host. The apparent disease infection rate was also influenced by moisture duration exposed to the plants. The fastest apparent infection rate was observed at 24 h of moisture exposure for 2-leaf plants (rL = 0.74 logit/day) and 6-leaf plants (rL = 0.72 logit/day). The optimum temperature for infection was within the range of 25 – 35 °C. The study indicated that temperature also influenced the ability of the fungus to infect E. crus-galli. The apparent infection rate for 4-leaf plants at 25 °C was rL = 1.05 logit/day, 30 °C at rL = 1.0 logit/day and 35 °C at rL = 0.77 logit/day. It could be taken as an advantage particularly in Malaysia where the temperature in granary areas usually ranges from 27 – 37 °C. Based on the results of this study, E. monoceras can be exploited as a bioherbicide, if the constraints related to moisture dependency can be solved. |
| first_indexed | 2024-03-06T09:06:37Z |
| format | Article |
| id | upm.eprints-49306 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T09:06:37Z |
| publishDate | 2012 |
| publisher | Malaysian Agricultural Research and Development Institute (MARDI) |
| record_format | dspace |
| spelling | upm.eprints-493062016-12-30T02:31:06Z http://psasir.upm.edu.my/id/eprint/49306/ Effects of moisture duration and temperature on infection of Exserohilum monoceras on Echinochloa crus-galli at different growth stages Sadi, Tosiah Kadir, Jugah Meon, Sariah Juraimi, Abdul Shukor Sastroutomo, Soetikno Slamet The effects of moisture duration and temperature on the infectivity of Exserohilum monoceras on Echinochloa crus-galli, an important weed in Malaysian granaries, were investigated. The results showed that E. monoceras infections were influenced by the availability of moisture and temperature. The fungus needed a minimum of 12 h of humidity to cause severe disease on the host. The apparent disease infection rate was also influenced by moisture duration exposed to the plants. The fastest apparent infection rate was observed at 24 h of moisture exposure for 2-leaf plants (rL = 0.74 logit/day) and 6-leaf plants (rL = 0.72 logit/day). The optimum temperature for infection was within the range of 25 – 35 °C. The study indicated that temperature also influenced the ability of the fungus to infect E. crus-galli. The apparent infection rate for 4-leaf plants at 25 °C was rL = 1.05 logit/day, 30 °C at rL = 1.0 logit/day and 35 °C at rL = 0.77 logit/day. It could be taken as an advantage particularly in Malaysia where the temperature in granary areas usually ranges from 27 – 37 °C. Based on the results of this study, E. monoceras can be exploited as a bioherbicide, if the constraints related to moisture dependency can be solved. Malaysian Agricultural Research and Development Institute (MARDI) 2012 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/49306/1/Effects%20of%20moisture%20duration%20and%20temperature%20on%20infection%20of%20Exserohilum%20monoceras%20on%20Echinochloa%20crus-galli%20at%20different%20growth%20stages.pdf Sadi, Tosiah and Kadir, Jugah and Meon, Sariah and Juraimi, Abdul Shukor and Sastroutomo, Soetikno Slamet (2012) Effects of moisture duration and temperature on infection of Exserohilum monoceras on Echinochloa crus-galli at different growth stages. Journal of Tropical Agriculture and Food Science, 40 (2). pp. 271-279. ISSN 1394-9829; ESSN: 2289-9650 http://ejtafs.mardi.gov.my/index.php/publication/issues/archive/66-2012/volume-40-no2/261-400205 |
| spellingShingle | Sadi, Tosiah Kadir, Jugah Meon, Sariah Juraimi, Abdul Shukor Sastroutomo, Soetikno Slamet Effects of moisture duration and temperature on infection of Exserohilum monoceras on Echinochloa crus-galli at different growth stages |
| title | Effects of moisture duration and temperature on infection of Exserohilum monoceras on Echinochloa crus-galli at different growth stages |
| title_full | Effects of moisture duration and temperature on infection of Exserohilum monoceras on Echinochloa crus-galli at different growth stages |
| title_fullStr | Effects of moisture duration and temperature on infection of Exserohilum monoceras on Echinochloa crus-galli at different growth stages |
| title_full_unstemmed | Effects of moisture duration and temperature on infection of Exserohilum monoceras on Echinochloa crus-galli at different growth stages |
| title_short | Effects of moisture duration and temperature on infection of Exserohilum monoceras on Echinochloa crus-galli at different growth stages |
| title_sort | effects of moisture duration and temperature on infection of exserohilum monoceras on echinochloa crus galli at different growth stages |
| url | http://psasir.upm.edu.my/id/eprint/49306/1/Effects%20of%20moisture%20duration%20and%20temperature%20on%20infection%20of%20Exserohilum%20monoceras%20on%20Echinochloa%20crus-galli%20at%20different%20growth%20stages.pdf |
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