Alehegn et al Greener Journal of Agricultural Sciences Vol. 9(4), pp. 361-375, 2019 ISSN: 2276-7770 Copyright ©2019, the copyright of this article is retained by the author(s) DOI Link: https://doi.org/10.15580/GJAS.2019.4.080519153 https://gjournals.org/GJAS Evaluation of Segregating Generations of Upland Cotton (Gossypium hirustum L.) Alehegn, Workie Amanu1*; Hussien, Mohammed 2; Berhanu, Amsalu3 1Werer Agricultural Research Center, Ethiopian Institute of Agricultural Research, Ethiopia 2 College of Agriculture, Hawassa University, Ethiopia 3Melkassa Agricultural Research Center, Ethiopian Institute of Agricultural Research, Ethiopia ARTICLE INFO ABSTRACT Article No.: 080519153 Type: Research DOI: 10.15580/GJAS.2019.4.080519153 The present study contained 16 testing genotypes and was laid out in a Randomized Complete Block Design (RCBD) with four replications at Werer Agricultural Research Center (WARC). This experiment was conducted with the objective of evaluating the performance of segregating inbred lines. The analysis of variance revealed that the tested genotypes differed significantly (p<0.05) in number of sympodial branches plant-1(SYM), Plant height (PLH), boll number plant-1 (BOP), Boll weight (BOW), Seed cotton yield ha-1 (SHA),Ginning percentage (GP),and lint yield ha-1(LHA), hundred seed weight (HSW), micronaire (Mic), upper half mean length (Uhml), Fiber Strength(Str) and Short fiber content (Sf). A one degree of contrast between the mean of the 14 F5 inbred lines and the mean of the two parents was significant for all traits except some traits. All 14 inbred lines included in this study were better than both parents in SYM, BOP, SHA, GP, and LHA, but were inferior to both parents in BOW, indicating that there was transgressive expression of the majority of traits. Additive genes were dispersed in the two parents for these traits. The mean separation analysis of seed cotton yield revealed superior inbred lines that excelled their parents viz., K (5170.3kg/ha), G (5072 kg/ha) and I (4987 kg/ha). The yield advantage obtained from most of the inbred lines was more than 10% in both seed cotton yield and lint yield compared with the parents. The inbred line with the highest value was superior to the parent with the highest value by 34% in SYM (inbred line I (15.25 vs 11.38), by 39.94% in BOP (inbred line I; 17.59 vs 12.57), by 26.7% in SHA (inbred line K; 51.7 vs 40.8), by 33.1% in LHA (inbred line K; 20.92 vs 15.72). Deltapine-90 was inferior to Delecero in Upper half mean length (Uhml) (27.90 vs 32.92), Uniformity percentage (80.4 vs 83.88), and in Strength (25.78 vs 36.33). The higher fiber quality of Delecero was expressed in its higher Uhml, strength, and its lower percentage of short fiber content (Sf, 8.0%).Deltapine-90 could not contribute any additive genes for the improvement of fiber quality traits like Uhml, strength and uniformity. It had one of the lowest means for the three traits. Breeders should look for appropriate germplasm that can contribute to the improvement of these fiber quality traits. Delcero should be backcrossed, with high yielder inbred lines to transfer its main fiber quality trait like fiber strength and length. Thus, these inbred lines could be potential varieties for future use by combining important quality traits through back crossing. Submitted: 05/08/2019 Accepted: 26/10/2019 Published: 01/11/2019 *Corresponding Author Alehegn Workie Amanu E-mail: alehegnworkie@ yahoo.com Keywords: cotton; variance; mean; inbred line; transgressive; yield; quality Return to Content View [Full Article – PDF] [Full Article – HTML] [Full Article – EPUB] Post-Publication Peer-review Rundown View/get involved, click [Peer-review] REFERENCES Azhar F.M., M. Naveed, and A. Ali. 2004. Correlation of seed yield with fiber characteristics of cotton. Int. J. Agri. Biol. 6(4):656-658. Bateno Kabeto, 2004. Prospects of cotton production in Ethiopia. pp. 302-304. In: National symposium on challenges before Ethiopian textile and garment sectors. Bahir Dar, Ethiopia, May 2004. Bahir Dar University. Bradow J.M. & G.H. Davidonis. 2000. Quantitation of fiber quality and cotton production- processing interface: A Physiologist’s Perspective. J. Cot. Sci. 4:34-64. Chaudhry M.R & A. Guitchounts .2003. Cotton Facts. Common Fund for Commodities, International Cotton Advisory Committee, Washington. Cotton Org. 2015. CCC Loan premium and discount schedule: Upland Cotton. Source http://www.cotton.org/econ/govprograms/cccloan/ccc-upland-discounts.cfm(accessed on: 06/03/2015). Chavan R. B .2010. Ethiopian Textile Industry Present Status and Future Growth Prospects, Institute of Technology for Textile, Garment and Fashion Design Bahir Dar University ,Bahir Dar, Ethiopia. http://www.slideshare.net/nega2002/ethiopian-textile-industry-final ETIDI (Ethiopian Textile Industry Development Institute), 2016 Cotton quality specification, grading and local trading price (unpublished), Addis, Ababa, Ethiopia. Fryxell P A, A revised taxonomy interpretation of Gossypium L.(Malavaceae),Rheedea,2(1992) 108-165. NCRS (National Cotton Research, Strategy).2017.National Cotton Commodity Research 2016-2030 WARC (unpublished). Oosterhuis D.M. & Jernstedt J. 1999. Morphology and anatomy of the cotton plant. In Smith, W. C.,Cothren, J. T., eds Cotton: Origin, History, Technology and Production. pp 175- 206. John Wiley and Sons, Inc., New York. 44:1900- 1901. Patil, N.B., and M. Singh. 1995. Development of mediumstaple high-strength cotton suitable for rotor spinning systems, p. 264–267. In G.A. Constable and N.W.Forrester (ed.) Challenging the future. Proc. World Cotton Conf. I, Brisbane, Australia, 14–17 Feb. 1994.CSIRO, Melbourne, Australia. Pretorius M.M., Allemann J. & Smith M.F. 2015. Use of the AMMI model to analyse cultivar-environment interaction in cotton under irrigation in South Africa. , 2(2), pp.76–80.Reed & Dunn, 1941. USDA (United States Department of Agriculture) .2016. Drought has Minor Impact on Ethiopia’s Cotton Production. Grade report number ET1613, Report Categories: Cotton and Products. WARC (Werer Agricultural Research Center).2018.National Cotton Research progress Report (Unpublished).Werer. Cite this Article: Alehegn, WA; Hussien, M; Berhanu, A (2019). Evaluation of Segregating Generations of Upland Cotton (Gossypium hirustum L.). Greener Journal of Agricultural Sciences 9(4): 361-375, https://doi.org/10.15580/GJAS.2019.4.080519153