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Triple test cross analysis in three barley populations under saline-alkali soil conditions

Published online by Cambridge University Press:  27 March 2009

I. D. Tripathi  and
M. Singh
I. D. Tripathi
Affiliation:
Department of Genetics, Haryana Agricultural University, Hissar 125004, India
M. Singh
Affiliation:
Department of Genetics, Haryana Agricultural University, Hissar 125004, India
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Summary

One hundred and eighty triple test cross families arising from three barley crosses (C 164 x EB 1556, BG 25 x NP 21 and BH 15 x RD 103) were grown in two blocks of a randomized-block design in saline-alkali soil prepared in micro-plots. The families were evaluated for number of days from sowing to heading, plant height, number of tillers per plant, ear length, number of grains per ear, 100-grain weight and grain yield per plant. The cross BG 25 x NP 21 showed epistasis only for number of days toheading and number of grains per ear; in contrast, epistasis was present in all traits in BH 15 x RD 103. In cross C 164 x EB 1556, epistasis was detected for plant height, ear length and number of grains per ear. Thus, epistasis appears to be related to specific cross combination. The ‘j and l’ type epistasis was more pronounced than the ‘i’ type. Early generation selection may be used for number of days to heading which Exhibited epistasis marginally with preponderance of additive gene effects, while for the remaining traits selection should be deferred till an advanced generation.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 101 , Issue 2 , October 1983 , pp. 317 - 321
Copyright
Copyright © Cambridge University Press 1983

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