S. S. Siddique
Scientific Officer
Plant Pathology Division, RARS, Jessore
A screening programme was carried out at RARS, Jessore during 20012-13 cropping season against foot and root rot of lentil in natural epiphytotic condition with seven BARI masur varieties and two advance lines. Among them only three varieties (BARImasur1, BARImasur2 and BARImasur 4) were found moderately resistant against this disease. The highest yield was obtained from LR-9-25 (2.76 t/ha) which was tolerant to foot and root rot disease.
SCREENING, LENTIL, FOOT AND ROOT ROT
Pest Management
To study the foot and root rot status of BARI released lentil varieties.
A screening was performed with 9 entries of lentil against foot and root rot diseases under natural epiphytotic condition at RARS Jessore. Among the entries, seven were BARI-masur varieties i.e. BARImasur 1, BARImasur 2 BARImasur 3, BARImasur 4, BARImasur 5, BARImasur 6, and BARI masur 7 with two line LR-9-25 and BLX-01013-1. The experiment was replicated thrice in a randomized complete block design. Recommended doses of fertilizers were applied and seeds were sown on 30 November. Unit plot size 2.4 x 3 m2 with 40 cm x 1 m spacing. Plants were allowed to grown with necessary fertilizer and other intercultural operations as recommended Gazipur. During the growing period the plots were inspected regularly to record the incidence of foot and root rot disease from seedling to maturity stage of the plant. Dead plants were removed after counting. The entries were scored for foot and root rot by using 0-9 scale (Nene et al. 1981.) where, 1= 0% mortality (R), 2-3= 10% or less mortality (MR), 4-5= 11-20% mortality (T), 6-7=21-50% mortality (MS) and 8-9= 51% or more mortality (S).
Annual Report
Number of dead plant was lowest in BARImasur1 (89), with lowest foot and root rot percentage (6.18%) and highest plant survival percentage(93.82%). The highest number of dead plant was obtained from the variety BARImasur 5 (322), with highest foot and root rot incidence (22.36%) and lowest plant survival percentage (77.64%). Moderately resistant (MR) reaction was observed in the variety BARImasur 1, BARI masur2, and BARI masur4. 5 tratments (BARImasur 3, BARImasur 6, BARI masur 7, LR-9-25 and BLX-01013-12) resulted Tolerant (T) reaction and BARImasur 5 performed Moderately Susceptible (MS) reaction.Plant hight ranged from 42.00 cm to 47.20 cm in all the varieties and lines where there is no significant variation among the treatments. The highest number of branches/plant obtained from the line BLX-01013-12 (40) and it was lowest in BARImasur 2 (11). LR-9-25 gave the second highest no. of branch (27). In case of pod number, the highest number was obtained from LR-9-25 and BARImasur 6 (122), and was statistically similar with BARImasur 7 (120) and BARImasur 5 (111.3). The highest 1000 seed weight was obtained from LR-9-25 (26.40 g) and it is statistically similar with BARI masur3 (23.87 g). The lowest 1000 seed weight was obtained from BARImasur 6 (16.00 g). In case of yield per plot it was highest in LR-9-25 (2.03kg) which was statistically similar with BLX-01013-12 (1.78 kg) followed by BARImasur 2 (1.72 kg) and BARImasur 6 (1.69 kg). The highest yield was resulted from LR-9-25(2.76 t ha-1).
Report/Proceedings