*1.Gaya, A. G., Gurama, A. U.2 and Fagam, A. S.2
1.Department of Crop Science, Faculty of Agriculture and Agricultural Technology, Kano
University of Science and Technology,Wudil, Kano State, Nigeria
2 Crop Production Programme, School of Agriculture and Agricultural Technology,
3 Abubakar Tafawa Balewa University, Bauchi, Nigeria
Field trials were carried out at the Teaching and Research farm of Kano University of Science of Technology, Wudil with two pearl millet varieties in 2003, 2004and 2005 rain seasons to investigate the effect of inter- and intra-row spacings of pearl millet infected with downy mildew on panicle weight in Kano State, Nigeria. The experimental materials consist of factorial combinations of two varieties (SOSAT C88 and Zango), three inter-row spacings (50, 75 and 100cm) and four intra-row spacings (15, 30, 45 and 60cm). The treatments were laid out in randomized complete block design with three replications. Data collected on panicle weight were subjected to analysis ofvariance and Duncan’s Multiple Range Test (DMRT) was used for the separation of means at 1% and 5% levels of significance. Result shows that SOSAT C88 had significantly (P≤0.05 and P≤0.01) produced the heaviest panicle as compared to Zango which had the lightest in 2003 and 2005. Planting pearl millet at 75cm inter- row spacing significantly (P≤0.01) resulted in having heaviest panicles than using other inter-row spacings. Using 30 and 60cm intra-row spacings produced the heaviest panicles, while15 and 45cm resulted in getting light panicle heads. Heaviest panicles were significantly (P≤0.01) obtained when pearl millet varieties were inter- x intra-row spaced at 75 x 30cm and 75 x 60cm combinations respectively than those spaced out using other spacing combinations where lighter panicle heads were obtained. It is however, recommended to grow pearl millet using wider inter- and intra-row spacings for heaviest panicle heads.
Key words: Downy mildew, inter-row, intra-row, panicle weight, pearl millet