tailieunhanh - Variability in Alternaria alternata causing potato brown spot under different hydrogen ion concentration

A total of thirty isolates of A. alternata were collected from eastern Uttar Pradesh and parts of Bihar, India. All thirty isolates were evaluated for their growth and rate of growth at three different H+ ion concentrations (pH) viz. four, six and eight in PDA medium. Radial growth for all of the isolates of A. alternata was also found significantly maximum at pH 6 followed by pH 8 and pH 4. Also, it was noted that none of the isolate had statistically similar growth in different pH range. | Variability in Alternaria alternata causing potato brown spot under different hydrogen ion concentration

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