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Invasion and development of the cereal cyst‐nematode Heterodera avenae in roots of barley infected by the take‐all fungus Gaeumannomyces graminis
Author(s) -
COOK R.
Publication year - 1975
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/j.1744-7348.1975.tb01650.x
Subject(s) - heterodera avenae , biology , fungus , nematode , larva , heterodera , take all , cyst , biological pest control , agronomy , botany , ecology , medicine , radiology
SUMMARY Observations on the invasion and development of Heterodera avenae in relation to take‐all infection of barley roots were made in three pot experiments. Post‐cropping H. avenae populations were lower on fungus‐infected plants, as a result of the production of fewer, smaller and less fecund cysts. The reduction in cyst numbers was associated with reduced larval invasion of take‐all infected roots and with the effects of the unfavourable environment of these roots on female development, possibly through its effects on sex determination and survival of the larvae.