Screening of brinjal accessions against leaf blight (Curvularia lunuata ) in relation to epidemiological factors

Author(s) : Muhammad Atiq, Isra Naeem, Nasir Ahmed Rajput, Muhammad Usman, Shahid Iqbal, Ahmad Nawaz,Tahreem Fatima, Fahad Yaqoob, Muhammad Kashif, Mariam Ashraf

Digital object identifier:

doi.org/10.52587/JAF030301

Abstract:

Brinjal (Solanum melongena L.) is susceptible to most disastrous Curvularia leaf spot disease which severely affects the eggplant yield, quality, and leads to severe economic losses and becoming an alarming problem for farming community. In this regard, 15 accessions of brinjal were screened against leaf blight. Result showed that two hybrids (“Sandhya F1”, “Chaudry 54 F1”) showed resistant response with 4.72 and 3.95% disease incidence, respectively. Four varieties (“Twinkle star”, “Janak F1”, “Rani”, “Brinjal 3715”) showed moderately resistant response against leaf blight. Two accessions (“Dilnasheen”, “EP-273”) of them exhibited moderately susceptible and two (Pahuja Black round, Black pearl long) showed susceptible response towards leaf blight. Highly susceptible response was shown by five varieties/advance lines including Local-II Ever green, Black Beauty SSI, Global Round-Desi, Green Gold and Local-I Ever green with 96.68, 94.62, 93.67, 87.66 and 87.43% disease incidence, respectively. All these epidemiological factors (temperature, humidity, rainfall) showed highly positive correlation with disease development. It is concluded that “Sandhya-F1” and “Chaudry (54)-F1” can be used as resistant varieties against leaf blight disease of brinjal.