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Molecular Plant Breeding 2014, Vol.5, No.4, 18
-
23
http://mpb.biopublisher.ca
18
Research Report Open Access
Combining Ability Analysis of Growth, Yield and Quality Traits in Cherry
Tomato (
Solanum lycopersicum
var.
cersiforme
)
Renuka D. Muttappanavar
1
, A.T. Sadashiva
2
, R.C. Vijendrakumar
3
, Roopa B.N.
4
, P.T. Vasantha
5
1. Msc (horticulture) Dept. of Vegetable Science, College of Horticulture, Bengalore
-
65, GKVK post, UHSB, India
2. Dept. of vegetable crops, IIHR, Bengalore
-
89, India
3. Msc (horticulture) Dept. of PMAS, Bengalore
-
65, GKVK post, UHSB, India
4. Horticulture, Dept. of PHT, Bengalore
-
65, GKVK post, UASB, India
5. Msc (horticulture) Dept. of Fruit Science, Bengalore
-
65, GKVK post, UHSB, India
Corresponding authors email: renukamuttappanavar@gmail.com
Authors
Molecular Plant Breeding, 2014, Vol.5, No.4 doi: 10.5376/mpb.2014.05.0004
Received: 04 Apr., 2014
Accepted: 25 Apr., 2014
Published: 23 May, 2014
Copyright
©2014 Muttappanavar et al. This is an open access article published under the terms of the Creative Commons Attribution License, which permits
unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Preferred citation for this article:
Muttappanavar et al., Combining Ability Analysis of Growth, Yield and Quality Traits in Cherry Tomato (
Solanum lycopersicum
var.
cersiforme
), Molecular
Plant Breeding, 2014, Vol.5, No. 4 18
-
23 (doi: 10.5376/mpb.2014.05.0004)
Abstract
A study was carried out to know the heterosis and Combining ability effects for growth, yield and quality traits in a 7×7
diallel analysis excluding reciprocals by using 7 parents namely IIHR
-
2754(P
1
), IIHR
-
2758(P
2
), IIHR
-
2860(P
3
), IIHR
-
2863(P
4
),
IIHR
-
2864(P
5
), IIHR
-
2865(P
6
) and IIHR
-
2866(P
7
) in randomized block design with three replications. Parents IIHR
-
2754(P
1
)
and IIHR
-
2864(P
5
) exhibited high general combining ability effect for most of the characters. Genotypes IIHR
-
2754(P
1
) and
IIHR
-
2864(P
5
) were good general combiner for yield appear to be worthy of exploitation in future breeding. It is suggested
that involving these lines may be developed through multiple crossing to isolating high yielding varieties. The crosses
IIHR
-
2754×IIHR
-
2864 and IIHR
-
2754×IIHR
-
2866 showed high specific combining ability and per se performance for yield per
plant suggesting that these hybrids may be further tested for commercial utilization.
Keywords
Cherry tomato; Combining ability; Diallel analysis
Introduction
Cherry tomato (
Solanum lycopersicum
var
. cerasiforme
)
is a botanical variety of the cultivated tomato or a
smaller garden variety of tomato (Lenucei et al., 2006),
Cherry tomato is grown for its edible fruits, which can
be consumed either fresh as a salad or after cooking as
snacks. Cherry tomato has good nutritional information
being, total carbohydrate, sugars, protein, calcium, and
iron. They are a great source of vitamin
-
C (13 mg/100 g),
dietary fibre (2.0 g), vitamin A (25%) and vitamin K
and also a good source of vitamin E (Alpha
Tocopherol), thiamine, niacin, vitamin B
6
, foliate,
phosphorus, copper, potassium and manganese. They
are low in sodium and very low in total fat (0.3 g),
saturated fat (0.1 g) and Cholesterol (Anon., 2009).
Although cherry tomatoes have more nutritional
values as compare to normal tomatoes there is a
less work has been done with respect to quality
improvement in cherry tomatoes.
There was no
breeding programme targeted towards nutritive values
in India. Therefore, there is a need for improvement of
varieties or hybrids specifically for fresh market and
processing qualities with high nutritive value and
higher yield Therefore, the present study was undertaken
to generate information for identification of good
general and specific combiners for the improvement
of yield and its component traits.
Combining ability studies are more reliable as they
provide useful information for the selection of parents
in terms of performance of the hybrids and elucidate
the nature and magnitude of various types of gene
actions involved in the expression of quantitative traits.
Diallel cross analysis provides the estimates of genetic
parameters regarding combining ability as well as a
rapid overall picture of the dominance relationship of
the parents studied using the first filial generations (F
1
)
with or without reciprocals, Diallel analysis involving
parents give the additional information as presence or
absence of average degree of dominance, distribution
of dominant and recessive genes in the parents.
Application of diallel technique in a self
-
pollinated
crop like tomato for this purpose may be appropriate