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Articles by Bimal Kumar Pramanik
Total Records ( 6 ) for Bimal Kumar Pramanik
  Bimal Kumar Pramanik , Toshiyuki Matsui , Haruo Suzuki and Yusuke kosugi
  The rapid senescence of broccoli head after harvest at ambient temperatures is accompanied by rapid drop of sucrose from florets. To understand such biochemical changes, we isolated a cDNA for Sucrose Synthase (SS) from broccoli branchlets. The cDNA clone, BoSS (B. oleracea sucrose synthase) (AB212623) encodes an mRNA of 608 bp. The deduced amino acid sequence is highly homologous to SS from Arabidopsis, cotton, mungbean and pea. Transcripts of BoSS were present in both branchlets and florets throughout the storage period. The SS enzyme activity of both portions gradually increased throughout the storage duration except for a transient decrease on the 48 h of storage. However, transcripts were only consistent with enzyme activity up to 24 h of storage. The initial increase in enzyme activity and transcripts level after 24 h of storage caused about 50% decline of sucrose content.
  Bimal Kumar Pramanik and Md. Ayub Ali
  The effects of plant spacings (30 cm x 5 cm and 25 cm x 5 cm), dates of sowing (15 September, 25 September, 5 October and 15 October) and soil application of boron, molybdenum and sulphur on the incidence and the severity of yellow mosaic (YM) and grain yield in winter mungbean cultivar Binamoog 4 was studied under natural field condition during the rabi seasons of 1996-97 and 1997-98. The incidence and severity of YM was lower in plots with 30 cm x 5 cm plant spacing than that in 25 cm x 5 cm plant spacing. The highest grain yield (1273.70 kg ha -1) was obtained from plots where seeds were sown on 25 September. The single or combined application of boron (2 kg ha -1) and molybdenum (1.5 kg ha -1) significantly reduced the severities of YM and increased grain yield (24.8 to 30.6%).
  Afia Akhtar , M. A. Rahman khokon , Bimal Kumar Pramanik and M. Ashrafuzzaman
  Eight cultivars of tomato were studied under field condition in insecticide treated and non treated plots to observe the performance of these varieties against leaf curl disease. The effect of this disease in percent plant infection, insect population per plant, percent leaf area diseased, number of fruits per plant, weight of individual fruit (g), yield per plant (kg) and yield loss due to leaf curl infection were investigated. None of the varieties was found to be resistant against viral leaf curl disease. But the cultivar Raton was found to be somewhat resistant both in controlled and treated plots. In controlled plots the second best performance was shown by Manik. The other varieties were more or less affected by leaf curl virus. In insecticide treated plots, second highest yield was observed in Manik and Roma-VF varieties indicating that the cultivar Roma-VF has the potential to perform as good as Manik when cultivated under insecticidal condition. The cultivar Anobic suffered more due to leaf curl viral disease in terms of yield parameters under both insecticide treated and non-treated plots. Vector management using Malathion, improved the growth and yield parameters of cultivars.
  Md. Ayub Ali , Bimal Kumar Pramanik and Tahmina Khanm
  The effect of additional nutrients on the growth and yield of leaf curl infected plants of tomato cultivar ‘Marglobe’ under natural field conditions was studied. The recommended dose of NPK were applied in the soil. After transplanting additional dose each of urea , potassium sulphate(PS) and single super phosphate(SSP) at the rate of 2.5 gm per plant were applied in two instalments. Disease incidence and severity was low in the plots in which additional nutrients were supplied. Higher fruits yield was obtained from the infected plants which were nourished with additional doses of urea, PS and SSP as compared to infected plants which were not supplied with additional nutrition. Best results were obtained when additional dose of urea, PS and SSP were applied as combination than their individual application.
  Nazrul Islam , Bimal kumar Pramanik , Md. Atiqur Rahman Khokon and M. Ashrafuzzaman
  Fifteen advanced lines of tomato including two check cvs. `Manik` and `BARI-10` were assessed under natural epiphytotics for their performance to late blight (Phytophthora infestans) and early blight (Alternaria solani). The highest late blight disease incidence was found in V-52 & V-215 and the lowest in V-378. Two lines were found resistant (V-426 & V-259), two moderately resistant (V-187 & V-385), two were tolerant (V-282 & V-422), four moderately susceptible (V-378, V-138, V-258 and BARI 10), three were susceptible (V-330, V-201 and Manik) and two highly susceptible (V-52 & V-215), but none was found highly resistant. In case of early blight V-259 showed the highest and V-215 showed the lowest disease incidence. On the basis of early blight disease intensity, one was found resistant (V-52), three were moderately resistant (V-138, V-201 and V-215), six were moderately susceptible (V-378, V-282, V-330, V-426, V-422 and Manik), four were susceptible (V-187, V-385, V-258 and BARI 10), one was highly susceptible (V-259) and none was found highly resistant.
  Md. Liakot Ali , Md. Asad-ud-doullah , Bimal Kumar Pramanik and M. Ashrafuzzaman
  Soil treatment with Furadan at the rate of 33.5 kg ha-1, seedling treatments with skimmed milk (1:10 dilution of powder), foliar application of kitchen ash (sufficient to cover the foliage), Malathion and Metasystox at the rate of 0.02% and 0.03% respectively when applied in Tomato cv. Ruma VF, significantly reduced the insect vector population causing leaf curl disease. Malathion gave the best performance among the treatments in controlling disease incidence and severity. Metasystox and Furadan followed in order. The skimmed milk and kitchen ash also were effective.
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