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Articles by K. M. Khalequzzaman
Total Records ( 5 ) for K. M. Khalequzzaman
  M.M. Hoque , K. M. Khalequzzaman , Md. Abid Hussain , Md. Alauddin Khan and M. Ashrafuzzaman
  A field study was conducted to study some cultural treatments to find out an effective method, alternative to spraying of insecticide, for controlling vector to manage jute leaf mosaic disease. Five treatments viz. T1 (Malathion 57 E.C), T2 (field sanitation with rouging), T3 (Hanging of polythene strips), T4 (extra dose of nitrogen) and T5 (control) were assigned randomly having four replications. T2 and T4 showed best performance on all the parameters including leaf mosaic of jute. However, the highest yield of raw jute 3091.5 kg ha-1 and stick 5709.6 ha-1 was obtained from T4 and the second highest 2541.6 kg ha-1 of raw jute and 5039.1 kg ha-1 of stick were obtained in T2. A combination of collection and use of seeds from healthy plants, one insecticidal spray around 30 days after emergence (DAE), combined with field sanitation with rouging several times in the growth period and application of an extra booster dose of nitrogen at around 45 DAE may be prescribed to farmers of Mymensingh region of Bangladesh.
  A. S. M. Monjur Alam , K. M. Khalequzzaman , M. K. Anam , Nazrul Islam and G.M. M. Rahman
  This experiment was conducted to determine the effect of tree species associations with different orientations grown as intercrop with rice on the incidence of major rice diseases (Bacterial leaf blight, Blast, Sheath blight and Brown spot). Jhau-rice association developed least incidence of four major diseases and the highest disease severity was recorded in Sissoo-rice association. The highest and lowest severity were recorded in O3 and O0, respectively. Out of five tree-rice associations highest yield (4.345 t ha -1) was obtained in case of Jhau-rice (T2) association and lowest yield (2.550 t ha -1) was recorded in Sissoo-rice (T5) association. Regarding different orientations, The highest yield (5.486 t ha -1) was obtained from open field (O0-orientation) and the lowest yield (1.522 t ha -1) was recorded in North-1.5 meter from the tree base (O3).
  M.A.K.S. Siddique , A.Q.M. Bazlur Rashid , I. Hossain , K. M. Khalequzzaman and Md. Kalim Uddin
  Reaction of five wheat varieties to Bipolaris sorokiniana and Fusarium moniliforme was assessed in terms of prevalence of the pathogen on the seeds, symptom severity on the growing plants and effects of the pathogens on the yields. Prevalence of B. sorokiniana was 4-4.25% in kanchan and Akbar and of Fusarium monilifome was 2.25-2.75% in Gourab and Kanchan. Disease severity was the highest in Barkat both in laboratory and field conditions. However, Bipolaris sorokiniana infection was more severe than that of Fusarium moniliforme. Percent diseased grains were high in Barkat, while grain yield was low in barkat and sonalika due to inoculation of B. sorokiniana and F. moniliforme. Thus, there was a significant variation in reaction among the wheat varieties to the pathogens.
  Md. Farid Ahmed , K. M. Khalequzzaman , Md. Nazrul Islam , M. K. Anam and M. Tahasinul Islam
  Twelve seed samples of rice were tested and all were found infected by Bipolaris oryzae the cause of brown spot disease. Highest (5.5%) and lowest (1.5%) incidence was found in sample of Bhabokhali and Mahozompur, respectively. Four plant extracts viz. biskatali (Polygonum hydropiper), onion (Allium cepa), garlic (Allium sativum) and neem (Azadirachta indica) were evaluated against Bipolaris oryzae. Among the plant extracts, neem and garlic were the most effective against Bipolaris oryzae at 1:1 dilution. All other plant extracts were also effective against Bipolaris oryzae at higher concentrations.
  Md. Farid Ahmed , K. M. Khalequzzaman , Md. Nazrul Islam , M. K. Anam and M. Tahasinul Islam
  Twelve seed samples of rice were tested and all were found infected by Bipolaris oryzae the cause of brown spot disease. Highest (5.5%) and lowest (1.5%) incidence was found in sample of Bhabokhali and Mahozompur, respectively. Four fungicides viz. Bavistin, Hinosan, Tilt 250 EC and Dithane M-45 were evaluated against Bipolaris oryzae. Dithane M-45 was the best with 100% reduction of the prevalence of the pathogen and inhibited the mycelial growth at 0.3% of the seed weight as seed treatments and 500 ppm as mycelial growth inhibition test followed by Tilt 250 EC, Hinosan and Bavistin. All test fungicides were effective against Bipolaris oryzae at higher concentration.
 
 
 
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