Response of Common Beans Varieties to a Mixed Population of Root Knot Nematodes (Meloidogyne spp) in Central Highlands of Kenya
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Date
2018-02-03
Authors
Waceke, J.W
Journal Title
Journal ISSN
Volume Title
Publisher
IJAIR
Abstract
Response of eight bean varieties to Meloidogyne
javanica and M. arenaria was evaluated under greenhouse and
field conditions. The bean varieties were GLP2 (Rosecoco),
GLP24 (Canadian wonder/Gituru), GLPX92 (Mwitemania),
GLP585 (Wairimu), GLP1004 (Mwezi moja), GLP1127 (New
mwezi moja), and two climbing beans (Vuninkingi and
Gisenyi). .In the greenhouse test, two weeks old seedlings
established on sterilized sandy loam soil were inoculated with
4000 nematodes comprising of second stage juveniles (J2) and
eggs obtained from beans in the Central highlands of Kenya
and maintained on tomato cv money maker in the greenhouse.
Each treatment was replicated six times in a Randomized
Complete Block Design (RCBD). Five bean varieties namely
GLP2 (Rose coco), GLPX92 (Mwitemania), GLP585
(Wairimu), GLP1127 (New mwezi moja) and Gisenyi that
were moderately resistance or resistant as revealed in the
greenhouse experiments were evaluated under field
conditions. Treatments were replicated four times and
arranged in a RCBD. Greenhouse test was terminated 60 days
after inoculation while the field test was terminated 90 days
after planting. Plant growth, nematode damage as measured
by gall indices and egg mass indices and reproductive factor
were assessed. Based on these parameters, the host responses
to the nematodes were categorized as resistance, moderately
resistant, susceptible and moderately susceptible. GLP 585
was categorized as resistance or a poor host while Vuninkingi
was rated the most susceptible among the eight varieties. The
moderately resistant varieties were (GLPX92, GLP2,
GLP1127 and Gisenyi, while GLP24 and GLP1004 were
moderately susceptible.
Description
A Research Article in the International Journal of Agriculture Innovations and Research
Keywords
Resistant, Susceptible, Root Knot Nematodes, Reproductive Factor, Gall Index, Egg Mass Index, Host Suitability.
Citation
Waceke, J. W. (2018). Response of Common Beans Varieties to a Mixed Population of Root Knot Nematodes (Meloidogyne spp) in Central Highlands of Kenya.