Survival of Meloidogyne graminicola eggs under different moisture conditions in vitro

Abstract

This study, therefore, indicates that although M. graminicola is a pest of upland rice, egg masses can remain viable under waterlogged and moist condition almost equally, but declines rapidly after 4 months. Potentiality of inoculum of M. graminicola in fallow soil to cause infestation to rice plants, although to a reduced rate, was found to last up to 11 months (Roy, 1978). De Guiran (1979) attributed survival of eggs and larvae of M. incognita in dry and water saturated soils to quiescence - in dry soil larvae could survive dessication more than six weeks, and in waterlogged soil larvae showed quiescence due to anoxy which was again dependent on competitors for oxygen.