The national average yield of
maize is by far lower than the world average yield. Plant density is one of the
factors that affect yield. Therefore, knowing theappropriate agronomic practices are paramount importance to maximize maize production
in Ethiopia. A field experiment was conducted under rainfed conditions in 2015
and 2016during the main cropping season at Haramayatodetermine the effects of inter and intra row spacing on growth, yield
components, and yield of hybrid maize varieties. The experiment consisted of
the factorial combinations of two hybrid maize varieties (“BH-661”and “BH-QPY-545”), two inter-rowspacing (65 and 75 cm) and three intra-row spacing (25, 30 and 35 cm) in a 3 × 2 × 2 factorial in a randomized
complete block design experiment with three replications of each treatment
combination.Aboveground dry biomass yield and grain yield were influenced by
interaction effect of inter row spacing, intra row spacing and year. The
highest aboveground dry biomass yield (31.36 t·ha-1) and
harvest index (47%)
References
[1]
FAOSTAT (Food and Agriculture Organization of the United Nations) (2016) Food and Agriculture Data. https://www.fao.org/faostat/en/#home
[2]
Tolessa, B., Gobezayehu, T., Worku, M., Desalegne, Y., Mulatu, K. and Bogale, G. (1993) Genetic Improvement of Maize in Ethiopia: A Review. In: Tolessa, B. and Ransom, J.K., Eds., Proceedings of the First National Maize Workshop of Ethiopia, Addis Ababa, Ethiopia, 13 22.
CSA (Central Statistical Agency) (2018) Agricultural Sample Survey Reports on Area and Production of Major Crops. Addis Ababa, Ethiopia.
[5]
Shiferaw, B., Prasanna, B., Hellin, J. and Banziger, M. (2011) Feeding a Hungry World: Past Successes and Future Challenges to Global Food Security in Maize. Food Security, 3, 307-327. https://doi.org/10.1007/s12571-011-0140-5
[6]
Ahmadi, M., Wiebold, W.J., Beverlein, J.E., Eckert, D.J. and Schoper, J. (1993) Agronomic Practices that Affect Corn Kernel Characteristics. Agronomy Journal, 85, 615-619. https://doi.org/10.2134/agronj1993.00021962008500030018x
[7]
Sangoi, L., Graceietti, M.A., Rampazzo, C. and Bianchetti, P. (2002) The Response of Brazilian Maize Hybrids from Different Eras to Changes in Plant Density. Field Crops Research, 79, 39-51. https://doi.org/10.1016/S0378-4290(02)00124-7
[8]
Jettner, R., Loss S.P., Siddique, K.H. and Martin, L.D. (1998) Responses of Faba Bean (Vicia faba L.) to Sowing Rate in South-Western Australia. I. Seed Yield and Economic Optimum Plant Density. Australian Journal of Agricultural Research, 49, 989-998. https://doi.org/10.1071/A98002
[9]
Chandrasekaran, B., Annadurai, K. and Somasundaram, E. (2010) A Text of Agronomy. Ansari Road, Daryaganj, New Delhi.
[10]
Tokatlidis, I.S., Koutsika-Sotiriou, M. and Tamoutsidis, E. (2005) Benefits from Using Maize Density Independent Hybrids. Maydica, 50, 9-17.
[11]
EARO (Ethiopian Agricultural Research Organization) (2004) Released Crop Varieties and Their Recommended Cultural Practices. Addis Ababa, Ethiopia.
[12]
Gonzalo, M., Vyn, T.J., Holland, J.B. and Mcintre, L.M. (2006) Mapping Density Response in Maize: A Direct Approach for Testing Genotype and Treatment Interactions. Genetics, 173, 331-348. https://doi.org/10.1534/genetics.105.045757
[13]
AmonaTolka (2014) Effect of Varieties and Plant Density on Yield and Yield Components of Maize (Zea mays L.) in Ofa District, Gesuba, southern Ethiopia. Haramaya University, Haramaya, Ethiopia.
[14]
Argaw, A., Mekonnen, E. and Muleta, D. (2015) Agronomic Efficiency of N of Common Bean (Phaseolus vulgaris L.) in Some Representative Soils of Eastern Ethiopia. Cogent Food & Agriculture, 1, 1-15.
https://doi.org/10.1080/23311932.2015.1074790
[15]
EIAR (Ethiopian Institute of Agricultural Research) (2008) National Maize Research Project, Current Research Activities, Past Achievements and Future Prospective.
[16]
MoA (Ministry of Agriculture) (2011) Animal and Plant Health Regulatory Directorate: Crop Variety Register. Addis Ababa, Ethiopia.
[17]
Francis, C.A., Rutger, J.N. and Palmer, A.F.E. (1969) Rapid Method for Plant Leaf Area Estimation in Maize (Zea mays L.). Crop Science, 9, 537-539.
https://doi.org/10.2135/cropsci1969.0011183X000900050005x
Ahmad, A.M., Bukhsh, H.A., Ahmad, R., Malik, A.U., Hussain, S. and Ishaque, M. (2010) Agro-Physiological Traits of Three Maize Hybrids as Influenced by Varying Plant Density. Journal of Animal and Plant Sciences, 20, 34-39.
[20]
Abuzar, M.R, Sadozai, G.U., Baloch, M.S., Baloch, A.A., Shah, I.H., Javaid, T. and Hussain, N. (2011) Effect of Plant Population Densities on the Yield of Maize. Journal of Animal and Plant Sciences, 21, 692-965.
[21]
Shafi, M., Bakht, J., Ali, S., Khan, H., Khan, M.A. and Sharif, M. (2012) Effect of Planting Density on Phenology, Growth and Yield of Maize (Zea mays L.). Pakistan Journal of Botany, 44, 691-696.
[22]
Azam, S., Ali, M., Amin, M., Bibi, S. and Arif, M. (2007) Effect of Plant Population on Maize Hybrids. Journal of Agricultural and Biological Science, 2, 14.
[23]
Karasu, A. (2012) Effect of Nitrogen Levels on Grain Yield and Some Attributes of Some Hybrid Maize Cultivars. Bulgarian Journal of Agricultural Science, 18, 42-48.
[24]
Anjorin, F.B. and Ogunniyan, D.J. (2014) Comparison of Growth and Yield Components of Five Quality Protein Maize Varieties. International Journal of Agriculture and Forestry, 4, 1-5
[25]
Zamir, M.S.I., Ahmad, A.H., Javeed, H.M.R. and Latif, T. (2011) Growth and Yield Behavior of Two Maize Hybrids (Zea mays L.) Towards Different Plant Spacing. Cercetari Agronomicein Moldova, 146, 33-40.
[26]
Moraditochaee, M., Motamed, M.K., Azarpour, E. and Khosravi Danesh, R. (2012) Effects of Nitrogen Fertilizer and Plant Density Management in Corn Farming. ARPN Journal of Agricultural and Biological Science, 7, 133-137.
[27]
Dalley, C.D., Bernards, M.I. and Kells, J.J. (2006) Effect of Weed Removal Timing and Row Spacing on Soil Moisture in Corn (Zea mays L.). Weed Technology, 20, 399-409. https://doi.org/10.1614/WT-05-098R.1
[28]
Konuskan, O. (2000) Effects of Plant Density on Yield and Yield Related Characters of Some Maize Hybrids Grown in Hatay Conditions as Second Crop. Mount Kenya University, Thika, Kenya.
[29]
Gozubenli, H., Ulger, A.C. and Sener, O. (2001) The Effect of Different N-Dose on Grain Yield and Yield Related Characters of Some Maize Genotypes Grown as Season Crop. Journal of Agriculture, 1, 39-48.
[30]
Rangarajan, A., Ingall, B., Orphanages, M. and Wolfed, D. (2002) In Row Spacing and Cultivar Affects Ear Yield and Quality of Early-Planted Sweet Corn. Hort. Technology, 12, 410-415. https://doi.org/10.21273/HORTTECH.12.3.410
[31]
Sener, O., Gozubenli, H., Konuskan, O. and Kilinc, M. (2004) The Effects of Intra-Row Spacing on Grain Yield and Some Agronomic Characteristics of Maize (Zea mays L.) Hybrids. Asian Journal of Plant Sciences, 3, 429-432.
https://doi.org/10.3923/ajps.2004.429.432
[32]
Sharifi, S.R., Mohammed, S. and Abdolghayoum, G. (2009) Effect of Population Density on Yield and Yield Attributes of Maize Hybrids. Research Journal of Biological Sciences, 4, 375-379.
[33]
Borras, L., Westgate, M.E. and Otegui, M.E. (2003) Control of Kernel Weight and Kernel Water Relations by the Post-Flowering Source-Sink Ratio in Maize. Annals of Botany, 91, 857-886. https://doi.org/10.1093/aob/mcg090
[34]
Aziz, A., Hidayat, U.R. and Najibullah, K. (2007) Maize Cultivar Response to Population Density and Planting Date for Grain and Biomass Yield. Sarhad Journal of Agriculture, 23, 25-30.
[35]
Asea, G., Serumaga J., Mduruma, Z., Kimenye, L. and Odeke, M. (2014) Quality Protein Maize Production and Post-Harvest Handling Handbook for East and Central Africa. Association for Strengthening Agricultural Research in the East and Central Africa, Entebbe, Uganda.
[36]
Abdikeni, A. (2015) The Effect of Intra-Row Spacing and Number of Plants Per Hill on Irrigated Maize (Zea mays L.) Production at Gode, Eastern Ethiopia. Haramaya University, Haramaya, Ethiopia.
[37]
Eskandarnejad, S., Khorasan, K., Bakhtiari, S. and Heidarian, R.A. (2013) Effect of Row Spacing and Plant Density on Yield and Yield Components of Sweet Corn (Zea mays L. Saccharata) Varieties. Crop Science, 3, 81-88.
[38]
Bismillah, M.K., Asif M., Aman M. and Ahmad, T. (2002) Impact of Intra-Row Spacing on Growth and Yield of Some Maize Cultivars. Journal of Research, 13, 135-138.
[39]
Iptas, S. and Acar, AA. (2006) Effects of Hybrid and Row Spacing on Maize Forage Yield and Quality. Plant, Soil and Environment, 52, 515-522.
https://doi.org/10.17221/3543-PSE
