Influence of the host age on development and virulence of Heterodera zeae in Egypt
Influence of the host age on development and virulence of Heterodera zeae in Egypt
A.E. Ismail† and A.M. Kheir*
ABSTRACT
Four ages of corn Zea mays L., cultivar Giza 2 were used to evaluate its influence on infectivity, development and
virulence of Heterodera zeae. The results revealed that the nematode final population and rate of build-up
correlated negatively with the host age. The nematode multiplied highly on the youngest seedlings; and was more
virulent on the youngest than on the oldest plants.
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June 2014
Pakistan Journal of Nematology, Vol. 32, Iss. 1, Pages 1-122
