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Subject: Vegetable Science × Author: Anthwal, Abhilasha × Type: Thesis × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    Heterosis and combining ability studies in broccoli
    (CCSHAU, 2006) Anthwal, Abhilasha; Partap, P.S.
    Fourty three genotypes comprising 13 parents (10 females and 3 males) their 30 hybrids were grown in randomized block design with three replications to study the combining ability and heterosis in broccoli. The analysis of variance indicated the presence of sufficient genetic variability for all the characters studied. Among female parents, BH-25-3-6, BH-25-3-7, DBG-B-12 and among male parents Broccoli No.1 and Cavolo Broccolo Notalima showed high gca effects for yield and other yield attributing traits. The cross BH—25-3-7  Atlantica and DBG-B-12  Broccoli No. 1 showed high sca effects for yield and related attributes. The crosses Palam Haritika  Cavolo Broccolo Notalima, BH-29-5-6  Atlantica showed high heterosis for yield and other yield contributing traits. For number of days to 50 % BH-25-3-6 was good general combiner amongst the female parents and Cavolo Broccolo Notalima among male parents, as they took minimum number of days to 50 % harvest. Among the crosses BH-14-4-2 x Cavolo Broccolo Notalima was best specific combiner as it showed significant and negative sca effect. In case of hetrosis over better parent and mid parent, the cross Palam Haritika x Cavolo Broccolo Notalima showed significant and negative heterosis for days to 50 % harvest BH- 14 – 4 – 2 x Cavolo Broccolo Notalima exhibited significant heterosis over best parent for number of days to 50 % harvest.