Dr. Nanyi J.I. Dutse<\/strong><\/p>\n\n\n\n

ABSTRACT<\/strong><\/p>\n\n\n\n

A field experiment was carried out during the rainy seasons of 2006 and 2007 at the Abubakar Tafawa Balewa University Teaching and Research Farm, Bauchi, to study\u00a0“The Effect of Inorganic fertilizer (Nitrogen) and Variety on some growth and yield characters of\u00a0Sesamum indicum<\/em>\u00a0L”. The treatments consisted of three sesame varieties; which were two improved varieties NCRI BEN-01M, NCRI BEN- 02M, and a local variety Bogoro local. The improved seeds were obtained from National Cereal Research Institute Baddegi in Niger State Nigeria, while the local seeds were obtained from a local farmer in Bogoro Local Government Area of Bauchi State, Nigeria. The second treatment were four levels of inorganic fertilizer which were marked as N0; Control(no fertilizer),N1=16g\/4m^{2<\/sup>(40kg\/ha), third was N2=20g\/4m2<\/sup>(50\/kg\/ha) and fourth treatment was N3=24g\/m2<\/sup>(60kg\/ha) The Inorganic fertilizer(Nitrogen) which was\u00a0\u00a0Urea was bought from a fertilizer dealers in the local market of Yelwa village in Bauchi, where the research farm was located. Results obtained and analysed on the\u00a0“The\u00a0Effect of Inorganic Fertilizer (Nitrogen) and Varieties on the growth and Yield of\u00a0Sesamum indicum<\/em>\u00a0“, during 2006 and 2007 cropping season as observed, recorded and analysed; showed that both Inoraganic fertilizer and variety had very high significant effect (P\u2264 0.05) on\u00a0Sesamum ndicum<\/em>\u00a0leaf area (cm2<\/sup>) all through the period of the investigation except at 6 after germination.\u00a0. The\u00a0\u00a0effect of inorganic fertilizer and variety on\u00a0Sesamum indicum<\/em>\u00a0plant height (cm) seemed to have followed the same trend as it is in leaf are(cm2<\/sup>) with the crops treated to N2 which is 50 kg\/ha level of nitrogen producing plants with larger leaf area and taller plants (cm). However the results obtained in respect\u00a0of\u00a0\u00a0Inorganic fertilizer (Nitrogen) effect on\u00a0Sesamum indicum<\/em>\u00a0number of branches per plant, all through the period of study\u00a0\u00a0showed non significant effect on\u00a0Sesamum indicum<\/em>\u00a0number of branches per plant.\u00a0\u00a0However variety within this period of the investigation had very high significant effect (P\u2264 0.05) on\u00a0Sesamum indicum<\/em>\u00a0number of branches per plant. Effect of Inorganic (Nitrogen) fertilizer on Sesamum<\/em>\u00a0indicum<\/em>\u00a0number of fruits per plant within the period of investigation was statistically non significant except at 10 weeks after germination. Variety within the study period was observed to have had high significant effect on\u00a0Sesamum indicum<\/em>\u00a0number of fruits per plant. Influence of nitrogen fertilizer on\u00a0Sesamum<\/em>\u00a0indicum\u00a0<\/em>final seed yield was a bit controversial though non significant, performance of the crop seed yield, even without fertilizer seem to depend more on variety and amount of rainfall\u00a0\u00a0with its distribution within the period of plant growth, development and reproduction, especially during fruit and seed formation. While effect of variety on\u00a0Sesamum indicum<\/em>\u00a0seed yield which is\u00a0\u00a0the farmer\u2019s main target was dependent on rainfall with the two hybrid varieties performing up to at least four times better with less rainfall in 2006 than local variety.<\/p>\n\n\n\n}