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- Title
EFFECTS OF SEEDLING AGE AND ROOT WOUNDING ON THE CHARCOAL ROT/ROOT-KNOT DISEASE COMPLEX ON GREEN BEAN.
- Authors
Al-Hazmi, Ahmad S.; Dawabah, Ahmed A. M.; Al-Nadhari, Saleh N.; Al-Yahya, Fahad A.; Lafi, Hamzeh A.
- Abstract
The effects of seedling age at inoculation and the mechanical wounding of roots on the development and severity of the disease complex caused by the interaction between Macrophomina phaseolina and Meloidogyne javanica on green bean were examined in two different greenhouse pot experiments. The results showed that disease severity decreased with increasing seedling age at inoculation from 4 to 6 to 8 weeks, and nematode reproduction was suppressed. However, mechanical wounding of the roots during inoculation with both pathogens increased the root-rot index, root galling severity, fungal recovery from roots, and the number of eggs per gram roots produced by the nematodes, consequently decreasing plant growth.
- Subjects
NEMATODE diseases of plants; CHARCOAL rot; JAVANESE root-knot nematode; MACROPHOMINA phaseolina; GREEN bean; SEEDLINGS
- Publication
Nematropica, 2016, Vol 46, Issue 2, p229
- ISSN
0099-5444
- Publication type
Article