The experiment was conducted in the Laboratory, Department of Plant Pathology,  HSTU, Dinajpur during April – July 2010 to know the effect of abiotic and biotic  factors, storage periods and storage containers on the seed quality of French  bean. Tin container showed the highest germination, normal seedlings and  vigour index which were followed by polythene bag, where Gunny bag showed  the lowest germination, normal seedlings and vigour index upto 60 days after  storage. The highest 1000-seed weight, moisture content, abnormal seedlings,  seed rot and incidence of the Fusarium oxysporum were recorded in Gunny bag,  where the lowest of these parameters were recorded in Tin container. Seed  colour of Tin container were more or less same as initial colour, but seeds of  Gunny bag were changed into fade or brown colour at 60 days after storage.  Moisture content, 1000-seed weight, abnormal seedlings, seed rot, fungi  association were increased, but germination and normal seedlings were  decreased with the increase of storage periods. Among the three containers, Tin  container was the best and the Gunny bag was the worst storage containers upto  60 days of storage for French bean seed. DOI: http://dx.doi.org/10.3329/bjar.v37i2.11221 Bangladesh J. Agril. Res. 37(2): 195-205, June 2012

The experiment was conducted at Spices Research Centre, BARI, Shibganj, Bogra, Bangladesh during 2014-15 to find out the effective fungicides in controlling wilt disease of cumin. The treatments were five fungicides viz. Sunvit 50 WP @0.5%, Secure @0.02%, Rovral 50 WP  @0.2%, Bavistin DF @0.25%, Provax 200 WP (0.25%) and one control (untreated). Cumin line CN 026 was used in the experiment. Wilt incidence ranged from 13.45 - 37.69%, while the lowest incidence was recorded In Bavistin treated plots which was statistically similar to Provax and Sunvit, and the highest incidence was recorded in control. Bavistin (0.25%) gave the highest number of umbels/plant, number of umbel lets/plant, number of seeds/umbel, number of seeds/plant, weight of seeds/plant and seed yield (586.5 kg/ha) which was followed by Provax and Sunvit, and the lowest of these parameters were obtained from control treatment.

The experiment was conducted during 2002-03 in the infested plot of the BINA sub-station at Ishurdi, Pabna to evaluate the effectiveness of Rhizobium strains and biofertilizers in controlling the foot and root rot disease, and to increase green pod yield of Bush bean under field condition. The highest germination (91.6%) was recorded with BINAR P36, which was statistically similar to BAUR 107, BARIR 7029, BARIR 1000, BINAR P6 and BINA biofertilizer. The lowest germination (77.9%) was found in untreated control. The highest foot and root rot (24.5%) was observed in untreated control and the lowest (10.00%) was in BINAR P36. Biofertilizers and Rhizobial strains decreased foot and root rot upto 59.2% over untreated control. The highest green pod yield (20.8 tlha) was obtained for using BINAR P36, which was followed by BARIR 7029, BARIR 892, BARIR 1000, BINAR P6 and BINA biofertilizer. The lowest green pod yield (13.6 tlha) was found in untreated control.Rhizobium strain BINAR P36 may be used as seed treatment for controlling foot and root rot and increasing green pod yield of Bush bean.

The experiment was conducted at the sick plot, Pulses Research Centre, Ishurdi, Pabna, Bangladesh during 2011-12 to find out the effect of chemical, botanicals, biocontrol agents and healthy looking seeds against foot and root rot of lentil. Chemical, botanicals, biocontrol agents and healthy looking seeds were used as treatments in this experiment. The lowest foot and root rot (21.67%) was obtained from when seed treatment with Provax 200 (2.5 g/kg seed) which was followed by seed treatment with Trichoderma harzianum compost (1:5) and apparently healthy looking seeds, and the highest incidence (41.50%) was obtained from untreated control. The highest number of pod/plant (45.26), number of seeds/plant (87.80), weight of seeds/plant (2.44 g) and yield (1845 kg/ha) were recorded in seed treatment with Provax 200 (2.5 g/kg seed) which were followed by seed treatment with Trichoderma harzianum compost (1:5) and apparently healthy looking seeds, and the lowest of these parameters were obtained from untreated control.

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Investigation was undertaken to screen out the extract of botanicals viz., neem leaf, neem oil, garlic, marsh paper plant, allamanda leaf, wood apple leaf, betel leaf and biological antagonists viz., Trichoderma viride and T. harzianum. Positive control was soil amendment with Provax and negative control with untreated soil. Soil drenching with Provax and untreated soil showed 7.65 and 37.5% wilt of tomato. Wilt incidence varied from 8.5 - 30.81%. Botanicals and biocontrol agents had significant effect on yield of tomato. Provax gave the highest (30.55 t/ha) yield which was statistically identical to garlic extract (29.66 t/ha) and untreated control showed the lowest (20.19 t/ha) yield which was followed by soil drenching with neem leaf extract. Both the biocontrol agents viz., T. harzianum and T. viride as broth and compost significantly reduced wilt incidence of tomato in the field over control.

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A glasshouse experiment was carried out to find out the effect of Rhizobium strains and biofertilizers on foot and root rot (Sclerotinia sclerotiorum) and yield of Bush bean. Six Rhizobium strains and three biofertilizers were used for seed treatment. Rhizobium strains (BINAR P36 and BINAR P6) and BINA biofertilizer resulted maximum reduction of seed rot, and foot and root rot of Bush bean in pot. In addition, these treatments increased germination, plant stand, shoot length/plant, root length/plant, shoot weight/plant, root weight/plant, vigour index, plant height, number of green pods/plant, weight of green pods/plant, weight of seeds/plant and healthy looking seeds in pot trials. Among them Rhizobium strains (BINAR P36) showed best performance.