Main Article Content
Abstract
A field experiment was conducted in the fieduring the fall season of 2017 to investigate the effect of ratooning cropping and its contribution to the green forage and grain yield of five sorghum cultivars viz. Inqath, Lilo, Ishtar, Bohooth, and Caffier. The results showed that the cultivars differed in most of the studied traits. The cultivar Bohooth-70 produced the highest average of the field establishment, a number of tillers, and total grain yield. The cultivar Caffier plants were superior in the number of the additional tillers and the contribution percentage to the green forage yield. The results also revealed that the cultivation method affected significantly the studied traits. The plants of ratoon were superior to those of sowing seeds as they produced the highest average of the total and an additional number of tillers, as well as the green forage yield. The regular cultivation method showed advantage in grain yield producing the lowest percentage of the empty heads. The interaction showed a greater response of the green forage using the ratoon cropping.
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The authors transfer the copyrights of their papers to the Iranian Society of Ichthyology. However, the information could be used in accordance with the Creative Commons licence (Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)
References
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Lafarge, T.A. & Hammer, G.L. 2002. Tillering in grain sorghum over a wide range of population densities: modelling dynamics of tiller fertility. Annals of Botany 90: 99-110.
Srirama, R.; Krishnareddy, B.A.; Stewart, W.A.; Payne Robinson, C.A. & Thomason, R.C. 2006. Tillering in dry land grain sorghum clumps as influenced by light, planting density and geometry. Journal of Crop Improvement 26-28.
References
Al-Mohammedi, A.M.S. 2015. Effect of Production Style and Nitrogen Fertilization on Growth and Yield of Sorghum. M.Sc. Thesis. Faculty of Agriculture, Baghdad University. 78 p.
Alwan, A.L. 2014. Hormonal Regulation of Tillering in Sorghum (Sorghum bicolor (L.) Moench). MSc. Thesis College of Agriculture, University of Baghdad.
Banks, S. 2005. Annual forage for grazing or stored feed. Food and rural affairs, OMAFRA, forage web site, Ontario.
Cheyed, S.H.; Al-kubaisy, M.I. & Motlag, N.A. 2014. Effect of nitrogen and potassium fertilizers on seed yield and its components of sorghum ratoon. Iraqi Journal of Agricultural Ministry of Agriculture 19(6): 111-120.
El-Fahdawi, W.A.T.; El-Jubouri, M.D.; Cheyed, S.H. &Al-Rawi, A.M. 2019. The influence of irrigation deficit and ratoon cultivation pattern sorghum cultivars on 1-grain yield of sorghum. International Journal of Agricultural and Statistical Sciences 15(2): 575-583.
Hammer, G.L.; Carberry, P.S. & Muchow, R.C. 1993. Modeling genotypic and environmental control of leaf area dynamics in grain sorghum. I. Whole plant level. Field Crops Research 33: 293-310.
Jassam, K.T.; Ali, I.H.; Cheyed S.H. & Naif S.H. 2016. Financial analysis of sorghum crop planted by ratoon method. Association of Genetic and Environmental Resources. The 4th International Scientific Congress. Cairo, Egypt, 4(2): 11-18.
Khush, G.S. 1999. Green revolution: preparing for the 21st century. Genome 42: 646-655.
Lafarge, T.A. & Hammer, G.L. 2002. Tillering in grain sorghum over a wide range of population densities: modelling dynamics of tiller fertility. Annals of Botany 90: 99-110.
Srirama, R.; Krishnareddy, B.A.; Stewart, W.A.; Payne Robinson, C.A. & Thomason, R.C. 2006. Tillering in dry land grain sorghum clumps as influenced by light, planting density and geometry. Journal of Crop Improvement 26-28.