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Articles by M.U. Ahmad
Total Records ( 4 ) for M.U. Ahmad
  M.S. Islam , M.U. Ahmad , M.E.H. Sarker and A.H.M.M. Haque
  An investigation on prevalence of rice root nematode in the farmer rice fields under natural condition was carried out. Farmer fields were located under Jamalpur district, Tangail district and Mymensingh district. Nematodes were isolated by following Bangladesh plate technique (modified Whitehead and Hemming tray method, 1965) and were counted per liter soil at booting, flowering, milking, soft dough, hard dough and harvesting stage. The highest nematode population 1196.7 L-1 soil was recorded in Madarganj having soil pH 5.9 sandy loam texture, 0.92% OM and higher N status followed by 524.4 L-1 soil in Sutiakhali having soil pH 5.4, loamy texture and 1.06% OM maximum nematode population 965.3 L-1, soil was observed at soft dough stage.
  M.S. Islam , M.U. Ahmad , A.H.M.M. Haque and M.E.H. Sarker
  Population dynamics of Hirschmanniella oryzae were determined per 5 g root basis from the roots at different plant growth stages by survey of irrigated rice in Madarganj (Jamalpur district), Madhupur (Tangail district), Sutiakhali, Nilukkhar char and Bangladesh Agricultural University Farm (Mymensingh District) during December 2001-March 2002. The highest nematode population 30.5/5 g root was recorded in BAU Farm having soil pH 5.6 sandy loam texture, 1.88% OM and balanced fertility status followed by a population 24.8/5 g root in Madhupur having soil pH 4.4, loamy texture and 0.99 % OM peak population was observed at soft dough stage covering booting, flowering and milking stage. The reduction in nematode population was recorded from hard dough to mature stage.
  A.K.M. Kamal Hasan , M.U. Ahmad , M. Rahaman , K.M. Khalequzzaman and M.M. Islam
  Mixed inocula of Meloidogyne javanica and Sclerotium rolfsii in five different treatments including control were tested for the growth, yield, galling incidence and development of the nematode in groundnut. Progressively higher galling incidence and higher number of adult females and juvenile populations of M. javanica correspondingly with lower plant growth, nodulation and yield per plant were recorded from lower to higher levels of inocula ranging from 4-10 egg masses of M. javanica with 0.025 - 0.2% w/w of S. rolfsii . Galling incidence was negatively correlated with plant growth, nodulation and yield of groundnut.
  Sayeeda Fatema and M.U. Ahmad
  Six treatments with organic amendments like neem oil, mustard oil cake, til oil cake, garlic extract and a chemical Furadan-3G including control were tested against root-knot on two local varieties of groundnut caused by Meloidogyne javanica. Treatment with Furadan-3G as side-dressing after 7 and 14 days of inoculation gave the best response in plant growth characters including nodulation correspondingly with the lowest number of galls, adult females and different juvenile stages of the nematode within the treated plants. Neem oil gave better effect with the reduction of galls and nematode population like that of Furadan-3G. Garlic bulb extract showed comparatively higher response in promoting plant growth and suppressing the nematode. Good effects were observed with the oil cakes of mustard and til.
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