International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2018, Volume : 6, Issue : 2
First page : (523) Last page : (532)
Article doi: : http://dx.doi.org/10.18782/2320-7051.6196

Genetic Analysis of Grain Yield, Its Components and Quality Parameters in Durum Wheat (Triticum durum desf.) Over Environments

Patel, N. A.*, Dholariya, N. D., Delvadiya, I. R. and Akbari, V. R.
Department of Genetics and Plant Breeding, College of Agriculture,
Anand Agricultural University, Anand -388 1100, Gujarat, India
*Corresponding Author E-mail: ndbreeder787@gmail.com
Received: 25.01.2018  |  Revised: 28.02.2018   |  Accepted: 7.03.2018  

 ABSTRACT

Forty five hybrids developed by diallel mating design excluding reciprocals along with ten parents were studied for the estimation of combining ability variances and its effects. The analysis of variance for combining ability revealed that mean square values due to parents were significant for all the characters except for kernel length. Likewise, mean square values due to hybrids were significant for all the characters except for spike density and kernel length which revealed that existence of differences among the parents and hybrids. Significance of both s2GCA and s2SCA for the characters days to 50% heading, days to maturity, length of main spike, number of spikelets per main spike, number of grains per main spike, grain yield per main spike, test weight, spike density, protein content and sedimentation value suggested that importance of both additive and non-additive gene effects for the inheritance of these characters. The estimates of potence and predictability ratio revealed preponderance of additive genetic variance for the characters days to 50% heading, days to maturity, number of spikelets per main spike, number of grains per main and spike, density. The value of average degree of dominance was less than one for the characters days to 50% heading, days to maturity, number of spikelets per main spike, number of grains per main spike and spike density which revealed partial dominance behaviour of interacting alleles for these characters. The parent GW 2002-51 was good general combiner for the characters length of main spike, number of spikelets per main spike, number of grains per main spike, grain yield per main spike, test weight, protein content and sedimentation value. Whereas, the crosses GW 2007-77 x GW 1276 and HI 8725 x GW 1 were good specific combiners for days to 50% heading, days to maturity, plant height, number of effective tillers per plant, peduncle length, number of spikelets per main spike, number of grains per main spike, grain yield per main spike, grain yield per plant, test weight, biological yield per plant, and spike density.

Key words: Combining ability, Diallel, GCA, SCA and Wheat                                                              

Full Text : PDF; Journal doi : http://dx.doi.org/10.18782

Cite this article: Patel, N.A., Dholariya, N.D., Delvadiya, I.R. and Akbari, V.R., Genetic Analysis of Grain Yield, its Components and Quality Parameters in Durum Wheat (Triticum Durum Desf.) Over Environments, Int. J. Pure App. Biosci.6(2): 523-532 (2018). doi: http://dx.doi.org/10.18782/2320-7051.6196