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International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2018, Volume : 6, Issue : 2
First page : (1422) Last page : (1433)
Article doi: : http://dx.doi.org/10.18782/2320-7051.6415

Heterotic Component for Yield and Its Attributes in Eruca sativa by Using Varietal Diallel Analysis

Ganga Ram¹*, M. L. Jakhar² and E.V.D. Sastry^3
1,2Department of Plant Breeding and Genetics, SKN College of Agriculture (SKNAU), Jobner- 303329 (Raj.)
³Department of Plant Breeding and Genetics, Central Agriculture University, Manipur (Imphal), India
*Corresponding Author E-mail: grspbg87@gmail.com
Received: 18.03.2018  |  Revised: 21.04.2018   |  Accepted: 27.04.2018  

 ABSTRACT

Ten genetically diverse open pollinated populations of taramira [Eruca sativa (Mill.)] were crossed in a diallel mating design (excluding reciprocals) during Rabi season of 2012-13. The resultant 45 F1’s along with parents were evaluated in RBD with three environments (dates of sowing) with three replications during, Rabi 2013-14.Varieties (vi) mean squares were significant for all the characters in all the environments except plant height and siliquae per plant in environment-II, while plant height and test weight in environment-III. Overall heterosis (hii’) was highly significant for all the characters in all the environments. Average heterosis (Ћ) was significant for all the characters in all the environments except siliqua length and number of seeds per siliqua in environment-I, while test weight in the environment-II and environment-III. Varietal heterosis (hi) was significant for all the characters in all the environments except test weight in the environment-III. Specific heterosis (Sii’) was also significant for all characters in all the environments. Specific heterosis (sii’) component accounted for more than 50% to the overall heterosis (hii’) sum of squares. This indicated the presence of additive, dominance and epistatic components in the genetic control of the characters in the present investigation.Among the parents RTM-1415, RTM-314 and RTM-1358 in all the environments, RTM-1351 and RTM-1335 in the environment-II and environment-III were found to be superior based on vi effects and per se performance not only for seed yield per plant but for some of the other yield traits studied. The other parents worth considering on the basis of hi values were T-27 and RTM-1415 in environment-I and environment-II, while RTM-1415, RTM-1358 and RTM-1351 in the environment-III. It was therefore recommended to include these parents in hybridization programme to improve seed yield and seed quality. In the present investigation, highly heterotic crosses RTM-1358 x RTM-1415, RTM-314 x RTM-1351 and RTM-1212 x RTM-1358 in all the environments, were desirable as they had high seed yield per plant, high sii’ values, with high heterosis, heterobeltiosis and economic heterosis not only for seed yield per plant but for few other yield traits were studied.

Key words: Varietal Diallel analysis, Eruca sativa Mill and Heterosis 

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

Cite this article:  Ram, G., Jakhar, M.L. and Sastry, E.V.D., Heterotic Component for Yield and Its Attributes in Eruca sativa by Using Varietal Diallel Analysis, Int. J. Pure App. Biosci.6(2): 1422-1433 (2018). doi: http://dx.doi.org/10.18782/2320-7051.6415