|
Study on Maize Lethal Necrosis Disease of Sweet Corn |
|---|---|
| รหัสดีโอไอ | |
| Creator | 1. Wasana Rungsawang 2. Kanungnit Reanwarakorn 3. Supaporn Klinkong 4. Sujin Patarapuwado |
| Title | Study on Maize Lethal Necrosis Disease of Sweet Corn |
| Publisher | Department of Agriculture |
| Publication Year | 2558 |
| Journal Title | Thai Agricultural Research Journal |
| Journal Vol. | 33 |
| Journal No. | 1 |
| Page no. | 42-58 |
| Keyword | การเข้าทำลายร่วมกัน, เชื้อไวรัสใบด่าง, แคระข้าวโพด, เชื้อไวรัสใบด่างจุดประข้าวโพด, โรคข้าวโพด, โรคพืชไร่, co-infection, Sugarcane mosaic virus strain MDB, Maize chlorotic mottle virus, corn diseases, field crop diseases |
| URL Website | http://at.doa.go.th/journal |
| Website title | Thai Agricultural Research Journal |
| ISSN | 0125-8389 |
| Abstract | Maize Lethal Necrosis Disease (MLND) is a result of a combination of two virusinfection, the Maize chlorotic mottle virus (MCMV) and any of the cereal viruses in thePotyviridae group. In this work, effect of co-infection by MCMV and Sugarcane mosaicvirus strain MDB (SCMV-MDB) in 2 cultivars of sweet corn, Hybrix 3 and Insee 2 wasstudied. There are 7 treatments namely non-inoculation, inoculation by 0.1M Phosphatebuffer pH7.2 (Mock), inoculation by sap of MCMV only, inoculation by sap of SCMV-MDBonly, mixed-inoculation by sap of SCMV-MDB [1:10] and MCMV [1:10], mixed-inoculationby sap of SCMV-MDB [1:5] and MCMV [1:10] and mixed-inoculation by sap of SCMVMDB[1:10] and MCMV [1:5]. Then, symptoms and disease severity were observed at 7,14, 21, 28 and 35 days post inoculation (dpi) and evaluated of the disease index (DI). Theresults showed that co-infection of the both viruses caused more disease severity andincreased DI comparing to the single infection of MCMV. Base on this test, co-infection ofboth viruses in Hybrix 3 and Insee 2 produced a synergistic reaction causing MLND and infected plants were killed at 3 weeksafter inoculation. Thus, control measuresof both viruses should be concernedbecause both viruses have been found inthe major areas of corn production inThailand. |
