Tapan Kumar Dey
Principal Scientific Officer
Tuber Crops Research centre, BARI
Gazipur
M.S. Hossain and S. Islam
Scientist
Tuber Crops Research centre, BARI
Gazipur
Thirteen inorganic salts were evaluated in vitro at different concentration against Phytophthora infestans. Among them Magnesium sulphate and Disodium hydrogen phosphate at 5.0% concentration while Cupric sulphate, Zinc sulphate and Ammonium chloride at 0.12, 0.25 and 0.50% concentration showed encouraging performance in minimizing late blight infection.
Salt, Potato, Late blight
Pest Management
To evaluate the performance of some inorganic salts against potato late blight
Thirteen inorganic salts were used under the study. They were: Ammonium acetate, Magnesium sulphate, Disodium hydrogen phosphate, Ammonium chloride and Ammonium nitrate (at 1.2, 2.5 and 5%) and Ferric sulphate, Aluminum chloride, Sodium hydrogen carbonate, Ammonium sulphate, Ammonium ferrous sulphate, Ammonium molybdate, Cupric sulphate and Zinc sulphate (at 0.12, 0.25 and 0.5%). Leaflet of potato variety Diamant were collected and sprayed till run off with respective salt solution. In each case five leaflets were used. Then free moisture of leaflets was removed by air drying and placed upside down in the screening trays. Then one drop of sporangial suspension was placed at the centre of each leaflet and incubated for five days. Untreated control was maintained where plain water was sprayed. Data were taken on time required for lesion initiation, lesion size and presence of vegetative growth of the fungus.
Annual Report-2007-08, TCRC
15,000/=
Magnesium sulphate and Disodium hydrogen phosphate at 5.0% concentration while Cupric sulphate, Zinc sulphate and Ammonium chloride at 0.12, 0.25 and 0.50% concentration showed encouraging performance in minimizing late blight infection.
Report/Proceedings