Main Article Content
Weeds are the most prominent of all rice biotic stresses across all the ecologies in terms of yield reduction and increased cost of production. Weed control is therefore one of the most important and suggestive practices for potential rice production. Based on the above, field trials were carried out during 2017/2018 dry season at the Teaching and Research Fadama farm of the Kebbi State University of Science and Technology located at Jega (Latitude 12º21ˈN; Longitude 4º36ˈE) and that of Usmanu Danfodiyo University Sokoto located at Kwalkwalawa (Latitude 130 01ˈN, Longitude 5º09ˈE) to study the correlation between yield and selected parameters of some rice varieties grown in an integrated weed management (IWM) system. Both locations lie within the Sudan Savanna ecological zone of Nigeria. The experiment was done between December, 2017 and August, 2018. The treatments consisted of six (6) weed management options (Solarization/Orizo-plus (3WAT)/Hoe-weeding (6WAT), Round-up/Orizo-plus(at 3WAT)/Hoe-weeding (6WAT), Solarization/Hoe-weeding (3WAT)/Hoe-weeding (6WAT), Round-up/Hoe-weeding (3WAT)/Hoe-weeding(6WAT), Weedy-check and Weed-free) and three (3) rice varieties (Jamila, Faro 44 and Faro 57). The factorial combinations of the treatments were laid out in a randomized complete block design (RCBD) with split-plot arrangement, replicated three times. Weed management options formed the main plots while rice varieties were assigned to the sub-plots. Based on the results of this study, it could be concluded that high weed density in rice field causes poor rice growth and reduces grain yield (r=-0.757). Also, increase in number of leaves, number of tillers, leaf area index, percent productive tillers, length of panicle, weight of panicle and 1000-grain weight resulted to increased grain yield. Therefore, factors that encourage the performance of those parameters can be explored for high rice grain yield.
Ejebe CK. Parboiling characteristics of selected rice varieties from Nigeria. Masters thesis. University of McGill; 2013.
(Accesses 17 October, 2017)
Abiwon BO, Dambaba N, Salihu BZ. Genetic improvement of rice in Nigeria for enhanced yield and grain quality - A review. Asian Research Journal of Agriculture. 2016;1(3):1-18.
Gwandu HA. Effects of irrigation interval, weeding regimes and clove size on the growth and yield of garlic (Alium cepa L.) in Sokoto, Nigeria. Ph. D Thesis submitted to the postgraduate school, Usmanu Danfodiyo University, Sokoto. 2006;1-136.
Akobundu IO. Integrated weed management techniques that can reduce soil degradation. International Agricultural Development, Sambau, Orissa India, 1993; 7(3):5-12.
Johnson DE, Riches CR, Kayeke J, Sarra S, Tuor FA. Report of the global workshop on red rice control. Wild rice in sub-Saharan Africa: its incidence and scope for improved management. 1999;87-93.
Adigun JA. The strategies of weed control in vegetable crops. 2000;10:18-20.
Yakubu AI, Al-hassan J, Lado A, Sarkindiya S. Comparative weed density studies in irrigated carrot (Daucus carota L.), potato (Solanum tuberosum L.) and wheat (Triticum aestivum L.) in Sokoto Rima Valley, Sokoto State, Nigeria. USA Journal of Plant Science, 2006;1(1):14-21.
Al-Hassan J, Yakubu AI, Magaji MD. Irish potato (Solanum tuberosum) yield as affected by weeding regime and fertilizer application in the Sokoto Rima River Valley. Nigeria Journal of Horticultural Science. 2005;9:49-54.
Karaye AK, Yakubu AI, Lado A, Sani YA, Aliyu M, Jabiru AA. Response of soil moisture, soil temperature and bulb yield of garlic (Allium sativum L.) to mulching in Sokoto River Valley. Proceedings of the 27th Annual Conference of the Horticultural Society of Nigeria. 2009;379-382.
Murshida S, Uddin MR, Anwar MP, Sarker UK, Islam MM, Haque MM. Effect of variety and water management on the growth and yield of Boro rice. Progressive Agriculture. 2017;28(1):26-35.
Adusumilli NR. Integrated weed management in rice in India. Rice Knowledge Management Portal (RKMP).
(Accessed 28 March 2018)
Maji AT, Ukwungwu MN, Danbaba N, Abo ME, Bakare SO. Rice: History, research and development in Nigeria. In: Danbaba N, Nkama I, Maji AT, Ukwungwu MN, editors. Rice in Nigeria, Traditional Recipes & Research Needs. 2007;1-10.
Steel RGD, Torrie JH. Principles and procedures of statistics. A Biometrical approach. McGraw-Hill, New York. 1987; 186-187.
Duncan DB. Multiple Ranges and Multiple F-test. Biometrics. 1955;11:1-42.
Lado A. Effect of irrigation regimes and period of weed interference on the growth and yield of two spring wheat (Triticum aestivum L.) varieties. M.Sc Dissertation submitted to the Postgraduate School, Usmanu Danfodiyo University, Sokoto. 2004;1-93.
Hussaini MA, Lado A. Influence of weed control methods on yield and components of irrigated and rainfed cowpea (Vigna unguiculata (L.) Walp.) Crop Research. 2010;40(3):76-82.
Kwalle AK. Effect of seed hydro-priming, inter-row spacing and poultry manure on weed suppression and grain yield of triticale (Triticosecale wittmack) at Kano, Nigeria. Ph. D Thesis submitted to the Postgraduate School, Usmanu Danfodiyo University, Sokoto. 2015;1-137.
Falaki AM. The response of dwarf wheat varieties (Triticum aestivum L.) to different water stress levels, dates of sowing and nitrogen fertilizations. Ph.D Thesis submitted to the Post Graduate School, ABU Zaria. 1994;1-225.