International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2017, Volume : 5, Issue : 6
First page : (691) Last page : (697)
Article doi: http://dx.doi.org/10.18782/2320-7051.4062
Estimation of Standard Heterosis in Multiple Cross Derivatives of Upland Cotton (Gossypium hirsutum L.) for Yield, Plant Type and Fibre Quality
K. G. K. Murthy*, T. Pradeep1, S. Sokka Reddy2, K. V. Radha Krishna3,
Saida Naik, D.4 and Prashanth, Y.5
Department of Genetics & Plant Breeding, Agricultural College, Aswaraopet
1Seed Research & Technology Centre, Rajendranagar, Hyderabad
2Agriculture Polytechnic College, Tornala
3Administrative Office, PJTSAU, Hyderabad
4College of Agriculture, Rajendranagar, Hyderabad
5Agricultural Research Station, Adilabad
*Corresponding Author E-mail: murthygenetics@gmail.com
Received: 15.06.2017 | Revised: 19.07.2017 | Accepted: 23.07.2017
ABSTRACT
A study was conducted to identify hybrids that possess compact plant characteristics during Kharif, 2014 by using 42 F1 hybrids obtained by crossing six lines and seven testers in a Line x Tester mating design. All the 13 parents were selected by evaluating 52 stable multiple cross derivatives that possessed compact plant characteristics through combined use of metroglyph and SSR marker analysis. All the 42 hybrids along with their 13 parents and two checks (Suraj and NCS 954 Bt) were evaluated at three different locations viz., Aswaraopet, Warangal and Adilabad and the data was recorded on eighteen characters to select the hybrids having compact plant type traits like early flowering, short stature, zero or low number of monopodial branches, high number of short sympodia, average to high number of bolls per plant, yield per plant, optimum leaf area, high harvest index, boll weight, 100-seed weight and ginning outturn besides having desirable quality parameters that are amenable for High Density Planting System (HDPS). The results of the present study revealed that, the cross combinations MC 17-6 x MC 19-2, MC 23-2 x MC 17-2, MC 17-6 x MC 17-1, MC 9-1 x NH 630 and MC 4-3 x MC 3-2 were found to exhibit seed cotton yield per plant on par with both the checks along with short compact plant type characteristics besides showing significant standard heterosis for quality traits like ginning outturn, 2.5% span length, uniformity ratio and bundle strength. Hence, these hybrids could be further evaluated in multilocation testing for commercial release.
Key words: Gossypium hirsutum L., Multiple Cross Derivatives, Compact plant types, Line x Tester analysis, Heterosis
Full Text : PDF; Journal doi : http://dx.doi.org/10.18782
Cite this article: Murthy, K.G.K., Pradeep, T., Reddy, S.S., Radha Krishna, K.V., Naik, S.D. and Prashanth, Y., Estimation of Standard Heterosis in Multiple Cross Derivatives of Upland Cotton (Gossypium hirsutum L.) For Yield, Plant Type and Fibre Quality, Int. J. Pure App. Biosci.5(6): 691-697 (2017). doi: http://dx.doi.org/10.18782/2320-7051.4062
