Heterosis and combining ability for seed yield and its components in Brassica juncea L.

Albanian j. agric. sci. 2013;12 (2): 203 -208 Agricultural University of Tirana
Correspondence: Frasat Saed, Jehanzeb Farooq. Affiliation; Cotton Research Institute, AARI, Faisalabad, Email: frasat_1436@yahoo.com ,
jehanzeb1763@hotmail.com
(Accepted for publication 5 March 2013)
ISSN: 2218-2020, © Agricultural University of Tirana
RESEARCH ARTICLE (Open Access)
Heterosis and combining ability for seed yield and its components in
Brassica juncea L.
FRASAT SAEED*1
, MUHAMMAD HAMMAD NADEEM TAHIR2
, SHEHZAD AHMAD KANG2
, MUHAMMAD
RIAZ1
, JEHANZEB FAROOQ*1
AND MADEEHA SAEED3
1 Cotton Research Institute, AARI, Faisalabad
2 Department of Plant Breeding and Genetics, University of Agriculture, Faisalabad
3 Institute of Horticulture Science, University of Agriculture, Faisalabad
Abstract:
The heterosis and combining ability of six Indian mustard (Brassica juncea L.) genotypes were estimated using
6 × 6 diallel crosses. The analysis of variance indicated significant differences among parents and their hybrids
in the F1 generation for all the traits studied. The cross combinations namely CR-5 × RAS 3189, DP 7-91 ×
INDIA III, RAS 3189 × DP 7-91, RAS 3189 × 0714-A and RAS 3189 × INDIA III exhibited significant
heterosis for most of the studied traits thus may be exploited using heterosis breeding. The parent INDIA III and
DP 18-9 was best general combiners for majority of traits. The cross combination DP 7-91 × INDIA III proved
best specific combiner for plant height, number of siliquae per plant, number of seeds per siliquae and seed yield
per plant. The GCA and SCA mean squares significance determined the presence of both additive and nonadditive gene action that execute role for the expression of these traits.
Keywords: Pakistan, heterosis, Combining ability

 

Podes of Brassica junceaBrassica juncea field

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