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Heterosis and combining ability studies in broccoli

KrishiKosh

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Title Heterosis and combining ability studies in broccoli
 
Creator Anthwal, Abhilasha
 
Contributor Partap, P.S.
 
Subject Broccoli, Developmental stages, Curd, Crossing over, Planting, Heterosis, Biological phenomena, Hybrids, Harvesting, Yields
 
Description 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.
 
Date 2016-11-24T11:28:11Z
2016-11-24T11:28:11Z
2006
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/87389
 
Language en
 
Format application/pdf
 
Publisher CCSHAU