تلخیص
A survey was conducted in Peshawar division to determine the incidence of early blight of tomato
caused by Alternari asolani. High disease incidence (100%) was recorded in Pathwarbala, Sufaid
sang, kanderysadin and Shahibala. Regiaftezai and Malakandhir had the lowest (50%) incidence of
the disease. Alternaria solani was successfully isolated on PDA medium from the infected tomato
leaves of three locations. Comparison of the isolates showed Regilalma isolate to be the most
vigorous. The conidia of this isolate were found to be wider than those of the other isolates. All the
three isolates grew better at pH 6.0 and 5.5 as compared to pH4.5. Regilalma and Nasir bagh isolates
registered more abundant growth than the Malakandhir isolate. These result shows that isolates of
Alternaria solani may differ in their growth and virulence over short distances.
Afaq Ahmad, Maid Zaman, Ihsan Ul Khaliq. (2014) PREVALENCE OF EARLY BLIGHT OF TOMATO AND DIFFERENCES AMONG ISOLATES OF ALTERNARIA SOLANI IN PESHAWAR DIVISION, Asian Journal of Agriculture and Biology, Volume 2, Issue 4.
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