EV ALUATION OF TWELVE BARI TOMATO VARIETIES AGAINST DIFFERENT WILTS UNDER FIELD CONDITION

Abstract

Twelve tomato varieties namely BARI Tomato-I (Manik). BARI Tomato-2 (Ratan), BARI Tomato-3. BARI Tomato-a, BARI Tomato-S, BARI Tornato-6 (Choiti), BARI Tomato-7. BARI Tomato-8 (Shila), BARI Tomato-9 (Lalirna), BARI Tomato-l l , BARI Tomato-12 (Shidur) and BARI Tomato-I 4 were grown in the Horticultural farm of Sher-e-Bangla Agricultural University (SAU), Dhaka. October 2007 to March 2008 to determine the status of the varieties against different wilts of tomato. The tomato varieties were evaluated on the basis of wilt incidence and impact of disease on the growth and yield. At 55 days after transplanting (DAT), the variety BARI Tomato-9 (Lalirna) exhibited the highest Bacterial wilt incidence (44.47%) and the lowest Bacterial wilt incidence (15.53%) was recorded in the variety BARI Tomato-I (Manik). At 95 DAT, the highest Fusarium and Namic wilt incidence was recorded in the variety BARI Tornato-7 (40.00%) and the lowest Fusarium and Namic wilt incidence (17.77%) was recorded in the variety BARI Tomato-I (Manik) and BARI Tomato-2 (Ratan). The highest yield (41.11 t ha') was recorded in the variety BARI Tomato-8 (Shila) and the lowest yield (21.11 t ha') was recorded in the variety BARI Tomato-4 and BARI Tomato-I (Manik). Among the varieties BARI tomato-I (Manik) and BARI Tomato-2 (Ratan) showed resistant reaction and the varieties BARI Tomato-6 and BARI Tomato-8 showed moderately resistant reactions. Rest of the varieties showed moderately susceptible reactions against bacterial wilt. In case of Fusarium and Nemic wilts BARI Tomato-I (Manik) and BARI Tomato-2 (Ratan) showed resistant reactions, while BARI Tomato-3, 9. II showed moderately resistant reactions and rest of the varieties showed moderately susceptible reactions.