VARIATION IN MACROPHOMINA PHASEOLINA (TASSI.) GOlD.
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Date
1989
Authors
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ACHARYA N.G. RANGA AGRICULTURAL UNIVERSITY, RAJENDRANAGAR, HYDERABAD.
Abstract
Vari ation in four isolates of Macrophomina phaseolina
collected from different parts of India was studied through
isoenzyme analysis.
Seven days of growth and fifteen days of growth could
not clea r l y bring out the genetic similarity of the isolates
and the only dependable stage to compare the isolates was 21
days of growth.
The isolate variance in all the isoenzyme study was
lower than the interaction variance. This suggests the
dependability of the use of interaction variance in
deciphering the differences existing within the isolates.
Peroxidases, amylases, polyphenol oxidases followed by
esterases showed maximum diversity in all the isolate
combinationR suggesting that the isolates used in this
investigation are of different genetic nature.
Isolate II, III and IV had higher concentration of
copper and isolate I had lower concentration of copper.
Isolate III had the highest concentration of iron and isolate
I had the lowest concentration of iron.
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Keywords
VARIATION, MACROPHOMINA, PHASEOLINA, GOlD