African Journal of
Biotechnology

  • Abbreviation: Afr. J. Biotechnol.
  • Language: English
  • ISSN: 1684-5315
  • DOI: 10.5897/AJB
  • Start Year: 2002
  • Published Articles: 12487

Table of Content: 16 July 2006; 5(14)

July 2006

Comparative insect mitochondrial genomes: Differences despite conserved genome synteny

We present a comparative analysis of select insect mitochondrial DNA (mtDNA) representing four insect orders (Diptera, Hymenoptera, Orthoptera and Coleoptera) consisting of 12 different species in an effort to study a common set of genes and to understand the evolution of mitochondrial genome. A functional analysis of mitochondrial genomes was carried out using ERGO bioinformatics suite. To compare the similarity...

Author(s): Sathees B. C. Chandra, Jennifer L. Vlk and Vinayak Kapatral

July 2006

Effect of carbon, nitrogen and mineral sources on growth of Pleurotus florida, a Nigeria edible mushroom

Author(s): Adejoye O. D., Adebayo-Tayo B. C., Ogunjobi A. A., Olaoye O. A. and Fadahunsi F. I.   (Publisher&#;s Retraction)

July 2006

Prospects and determinants of adoption of IITA plantain and banana based technologies in three Niger Delta States of Nigeria

High yielding and disease resistant plantain and banana hybrids and its associated  technologies generated by IITA to combat the menace of black Sigatoka disease (Mycosphaerella fijiensis) were massively disseminated in year 2000. Since the hybrids were slightly different from the existing varieties in fruit size there was a need to assess thier prospects. Structured questionnaire and interview schedule were used...

Author(s): B. O. Faturoti, G. N. Emah, B. I. Isife, A. Tenkouano and J. Lemchi

July 2006

Exploring the African cassava (Manihot esculenta Crantz) germplasm for somatic embryogenic competence

Somatic-embryogenic competence of eleven cassava genotypes was determined in induction media containing 8 and 12 mg/l of the auxin picloram, using axillary meristems and leaf lobes as explants. There were significant differences (p<0.01) among the cassava genotypes for ability to form somatic embryos. Proembryo formation took between 27 to 35 days and ranged between 34.5% for TME 596 and 0% for SL80/40. Embryo...

Author(s): J. Atehnkeng, V.O. Adetimirin and S.Y.C. Ng

July 2006

Correlation and path coefficient analyses of seed yield attributes in okra (Abelmoschus esculentus (L.) Moench)

NH47-4 variety of okra, Abelmoschus esculentus (L.) Moench, was grown in two locations for two years from seeds collected from the National Institute of Horticultural Research and Training (NIHORT), Ibadan, Nigeria.  Experimental design adopted for the study was the randomised complete block design (RCBD).  Correlation and path coefficients were calculated for seed yield per plant and its components...

Author(s): B.O. Akinyele and O.S. Osekita

July 2006

Character association and path analysis in grain sorghum

Association and path analysis between hill count, bloom, plant height, panicle length, panicle count, 1000 seed mass, head weight and grain yield of thirty sorghum varieties were studied over two locations and years. There is significant high positive correlation between grain yield and head weight (r=0.976), grain yield and 1000 grain mass (r=0.522) and 1000 grain mass and head weight (r=0.528). Similarly, significant...

Author(s): I.E.Ezeaku and S.G. Mohammed

July 2006

Effect of mycorrhiza and pruning regimes on seasonality of hedgerow tree mulch contribution to alley-cropped cassava in Ibadan, Nigeria

Field experiments were carried out on an alley-cropping farm in Ajibode village, near Ibadan where cassava alley-cropped with three hedgerow trees (Leucaenaleucocephala, Gliricidia sepium and Senna (Syn Cassia) siamea), and sole planted cassava (all in three replicates) were arranged with arbuscular mycorrhizal fungi (AMF) inoculation (with Glomus deserticolum) in a...

Author(s): M.O. LIASU, M.O. ATAYESE and O. OSONUBI

July 2006

Oxytocic effects of the water extract of Musanga cecropioides R. Brown (Moraceae) stem bark

Musanga cecropioides (Umbrella tree) is one of the medicinal plants used in tropical parts of Africa for its oxytocic, hypotensive and antidiabetic activities. This work examined the effect of the water extract of the stem bark on rat uterus pre-treated with 1 mg/kg stilboesterol for 24 h. The effects of oxytocin-a uterine contraction agonist, antagonists like atropine (1-2 mg) and salbutamol (2 µg) on the...

Author(s): B. A. Ayinde , D. N. Onwukaeme and Z. A. M. Nworgu