GENETICS OF YIELD, YIELD COMPONENTS AND FRUIT QUALITY PARAMETERS IN CHILLI (Capsicum annuum L.)
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Date
2000
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University of Agricultural Science, Dharwad
Abstract
"Investigations were carried out to know the combining ability-,
heterosis and to study the gene effects for quantitative and qualitative
characters in chilli during kharif 1997-99. The study involved tfic
evaluation of 45 hybrdis along with 18 parents to assess combining abilitv
of parents, estimation of heterosis over better parent and to identify the
potential hybrid combination for 17 growth, yield, quality and resistance
traits. The combining ability studies indicated that the parents kaddi, VN-
2, Jwala, LCA-312, KDC-1 and Arkalohit could be utilised in breedmg
programme since they expressed highly significant positive GCA effects for
dry fruit yield per plant. The parents VN-2, LCA-301, PMR-5 and CA-219
for thrips and VN-2, Hissar shakthi and Arkalohit for mites were found
good general combiner. Evaluation of Fis indicated that the crosses VN-2
X BC-24, Kaddi x KDC-1 and Kaddi x PMR-5, VN-2 x Arkalohit, VN-2 x
Jwala and Kaddi x Arkalohit are found promising could be exploited. The
hybrid combination Kaddi x Phule-5, Kaddi x Hissar Shakthi, VN-2 x
LCA-312, Dabbi x LCA-312, Dabbi x Arkaabir and Kaddi x BC-14-2 were
identified as potential material for further breeding programme, promising
recombinants are derived from the cross Kaddi x LCA-312 and Dabbi x
LCA-312 could be advanced to derive pure lines.
To undcr-stand the nature and magnitude of gene effects nine
crosses were analysed through generation mean analysis for 15 character.
The study indicated that the growth related traits were found to be under
the control dominance and additive x additive type of gene interaction.
Fruit related traits were under the control of additive, additive x
additive type of gene interaction. Resistance to thrips and mites was
under the control of non-additive gene effects i.e. dominance, additive x
additive and additive x dominance, it suggest that inclusion of parents
having high level of resistance for the development of hybrids or to derive
pure lines. Dry fruit yield was under the control of dominant and additive
X additive type of gene interaction.
In order to exploit non-additive gene action development of hybrid is
suggested. For the development variety recurrent pedigree selection
programme is suggested involving the parents having high level of
resistance with high fruit quality traits."
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