Record Details

Variabilty in the sensitivity of Phytophthora capsici isolates to potassium phosphonate

KRISHI: Publication and Data Inventory Repository

View Archive Info
 
 
Field Value
 
Title Variabilty in the sensitivity of Phytophthora capsici isolates to potassium phosphonate
Not Available
 
Creator SS Veena
M Anandaraj
YR Sarma
 
Subject Black pepper
potassium phosphonate
Phytophthora
variability
variability
 
Description Not Available
Potassium phosphonate is recommended for the control of Phytophthora foot rot disease of black pepper (Pipernigrum L.). Sensitivity of 29 isolates of Phytophthora capsici, obtained from black pepper plants at various locations of Kerala and Karnataka, to potassium phosphonate was studied. There were significant variations EC50 and EC90 values for mycelial growth, sporulation, zoospore release and zoospore germination to different concentrations of potassium phosphonate. The EC50 values for mycelial growth, sporulation, zoospore release and zoospore germination ranged from 89.3µg/ml-603µg/ml,0.25µg/ml- 36.3 µg/ml, 0.84 µg/ml to 29.9 µg/ml and 1.5 µg/ml-37.3 µg/ml, respectively. The EC90 values for mycelial growth were 573.5 µg/ml to 1635.20 µg/ml, for sporulation it was 2.1 µg/ml to 129.3 µg/ml, for zoospore release it was 14.2µg/ml to 72.7 µg/ml and for zoospore germination it was 5.6 µg/ml to 103.4 µg/ml. Among the four stages of life cycle of P. capsici, sporulation stage was the most sensitive to potassium phosphonate and mycelial growth was the least affected. Sporulation being an important event in the spread of epidemics, application of potassium phosphonate at critical time would be essential inpreventing the spread of infection
Not Available
 
Date 2021-09-14T09:50:46Z
2021-09-14T09:50:46Z
2010-01
 
Type Research Paper
 
Identifier Ss, Veena & Anadaraj, & Y.R, Sarma. (2010). Variabilty in the sensitivity of Phytophthora capsici isolates to potassium phosphonate. Indian Phytopathology. 63 (1):. 71-75.
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/62018
 
Language English
 
Relation Not Available;
 
Publisher ICAR- Indian institute of spices research,Kozhikode, Kerala India