M. Hossain et al., EFFECT OF INOCULUM LEVELS OF POTATO-VIRUS-Y (PVY) ON YIELD AND SUBSEQUENT SPREAD OF THE DISEASE UNDER INSECTICIDE SPRAY AND UNSPRAYED CONDITION, Bangladesh journal of botany, 23(1), 1994, pp. 87-91
The spread of potato virus Y and yield loss due to the disease as infl
uenced by the level of inoculum was studied by planting varying per ce
nts (0, 10, 20, 30) of infected tubers along with apparently healthy o
nes both under spraying (Dimecron @ 1 ml/l) and non-spraying condition
s. The inoculum level significantly influenced both spread of the dise
ase and yield reduction, the effect being directly proportional althou
gh the difference between 0 and 10 % inoculum was not clear. Speard of
the disease was slightly fewer under the condition of insecticide spr
ay. Yield loss was slightly higher in Kufri Lalima than in Cardinal.