Variability in Tylenchorhynchus brevilineatus Williams, 1960

Morphometric and morphological variations were recorded on maize population of Tylenchorhynchus brevilineatus Williams, 1960. Data were statistically analysed for coefficient of variation (C.V.) of each character and a correlation matrix table was prepared. Intra-specific variations in some characters viz., lip region, lateral field, longitudinal striations, oesophageal bulb and cardia, hemizonid and excretory pore position, post-anal blind sac, spicule and gubernaculum and tail shape are discussed.