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Articles by M.I. Nwufo
Total Records ( 2 ) for M.I. Nwufo
  G.O. Ihejirika , M.I. Nwufo , C.I. Duruigbo , E.U. Onwerenadu , O.P. Obilo , E.R. Onuoha and K.O. Ogbede
  A two season Experiment was conducted during the rainy seasons of 2003 and 2004 respectively, to determine the effects of plant extracts and plant density on the severity of leafspot disease and yield of groundnut Cercospora arachidicola Hori in Imo State. Analysis of variance indicated that plant extract was significant on leafspot disease severity and seed yield (kg ha-1) 110.05, 107.85 in 2003 and 2004. Similarly, plant density was highly significant on leafspot disease severity and seed yield (kg ha-1) 91.15, 88.36. Azadirachta indica spray recorded lowest leafspot disease severity while no spray (control) recorded highest. Plant density (10x10) cm recorded highest leafspot disease severity while (40x40) cm had the lowest. Also Azadirachta indica spray recorded the lowest seed yield (kg ha-1) 18.06; 17.08. Plant density of (10x10) cm recorded the lowest seed yield (kg ha-1) 16.22, 15.19, while (20x20) cm recorded highest seed yield (kg ha-1) 22.40; 20.69. leafspot disease severity increased with plants age.
  G.O. Ihejirika , M.I. Nwufo , M.C. Ofoh and V.N. Onyia
  Maize (Zea mays L.) is a well-known cereal grain grown in the savannah rejoin as well as in the rain forest zone of the country. Experiments were conducted during the rainy season of 2004 and 2005 to determine the effects of mulch material and plant density on some fungal diseases and yield of maize. Analysis of variance indicate that mulch material was significant on leaf spot disease 1.66;1.45, Blight 1.10; 1.04, Rust 0.012; 0.050 and grain yield 0.55; 0.63 tons/ha in 2004 and 2005, respectively. Grass mulch recorded highest plant height 90.10; 89.73 followed by live mulch 70.81; 76.60 when no mulch (control) recorded the lowest plant height 56.25; 57.74. Same trend was observed on grain yield. Grass mulch had 1.20; 1.23 when control recorded lowest 1.00; 0.87 in 2004 and 2005, respectively. Plant density was significant on plant height, 546; 493.07, grain yield 2.65; 2.31, leaf spot disease severity 0.40; 0.12 and rust 2.96; 3.20. 25x75 cm recorded highest in plant height 82.30; 79.88, grain yield 1.65; 1.42 as well as leaf spot disease severity 1.52; 1-33, blight 1.62; 1.85 and rust 1.65; 1.43 when 75x75 cm had lowest plant height as well as the diseases investigated and the fungi observed were Heliminthosprum sp. Puccinia spp and Aspergillus link in 2004 and 2005, respectively.
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