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- Title
Effect of Initial Density ofMeloidogyne haplaon its Pathogenic Potential and Reproduction in Three Species of Medicinal Plants.
- Authors
Park, S. D.; Khan, Z.; Ryu, J. G.; Seo, Y. J.; Yoon, J. T.
- Abstract
The pathogenic potential and reproduction fitness ofMeloidogyne haplaon three species of medicinal plants,Angelica koreana,Peucedanum japonicumandAstragalus membranaceuswas determined in potted soil under greenhouse conditions. Three weeks old seedlings were inoculated with population density (Pi) of 1000; 2000; 3000; 4000; 5000 and 10000 juveniles (J2)/kg soil. A significant damage was observed in shoot and root length, weight and root-diameter of these plants by all Pi levels at 90-day postinoculation. Damage increased with increase in Pi up to 5000 J2/kg soil. At 5000 Pi caused 34.8, 34.1 and 33.3% reduction in root weight ofAng. koreana,P. japonicumandAst. membranaceus, respectively. Greater root gall severity was observed onAng. koreanaandP. japonicumthan onAst. membranaceusat all Pi levels. At 5000 Pi, root gall severity was 5.0, 5.0, and 3.0 onAng. koreana,P. japonicumandAst. membranaceus, respectively. Increasing rate of Pi exponentially reduced reproductive factor (Rf) ofM. haplaon all of these medicinal plants. However, Rf was higher onAng. koreanaandP. japonicumthan onAst. membranaceusat all Pi levels. The host status of these medicinal plants renders them unsuitable for their use in crop rotation system inM. hapla-infested fields.
- Subjects
NORTHERN root-knot nematode; ROOT-knot nematodes; MEDICINAL plants; ASTRAGALUS (Plants); MEDICAL botany
- Publication
Journal of Phytopathology, 2005, Vol 153, Issue 4, p250
- ISSN
0931-1785
- Publication type
Article
- DOI
10.1111/j.1439-0434.2005.00964.x