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Effect of invasion by cereal cyst nematode (Heterodera avenue) on the growth and development of the seminal roots of oats and barley
Author(s) -
PRICE N. S.,
CLARKSON D. T.,
HAGUE N. M. G.
Publication year - 1983
Publication title -
plant pathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.928
H-Index - 85
eISSN - 1365-3059
pISSN - 0032-0862
DOI - 10.1111/j.1365-3059.1983.tb02851.x
Subject(s) - biology , heterodera avenae , heterodera , nematode , agronomy , juvenile , root system , cultivar , cyst , ecology , medicine , radiology
The effect of juvenile cereal cyst nematodes (Heterodera avenae) on the root growth of oat and barley seedlings was tested in three pot experiments. Invasion by juveniles hindered the extension of the seminal root axes of both cereals; after invasion, axes took 2–3 days to attain normal rates of extension. This response was found in susceptible and resistant cultivars. When oats and barley were exposed to continued invasion over 9 days, barley produced a larger root system than oats and was less stunted by nematode invasion. The density of nematodes per unit of root was less in barley than in oats. The effects on root growth were similar to reported responses of roots to mechanical damage.