EJPAU 2014. Gawroński J. THE USE OF TOP CROSS MATING SYSTEM IN THE STUDY OF GENERAL COMBINING ABILITY AND HERITABILITY IN STRAWBERRY (<i>Fragaria</i> × <i>ananassa</i> Duch.)

Electronic Journal of Polish Agricultural Universities (EJPAU) founded by all Polish Agriculture Universities presents original papers and review articles relevant to all aspects of agricultural sciences. It is target for persons working both in science and industry,regulatory agencies or teaching in agricultural sector. Covered by IFIS Publishing (Food Science and Technology Abstracts), ELSEVIER Science - Food Science and Technology Program, CAS USA (Chemical Abstracts), CABI Publishing UK and ALPSP (Association of Learned and Professional Society Publisher - full membership). Presented in the Master List of Thomson ISI.

2014
Volume 17
Issue 4

Topic:

Horticulture

ELECTRONIC
JOURNAL OF
POLISH
AGRICULTURAL
UNIVERSITIES

Gawroński J. 2014. THE USE OF TOP CROSS MATING SYSTEM IN THE STUDY OF GENERAL COMBINING ABILITY AND HERITABILITY IN STRAWBERRY (Fragaria × ananassa Duch.), EJPAU 17(4), #10.
Available Online: http://www.ejpau.media.pl/volume17/issue4/abs-10.html

THE USE OF TOP CROSS MATING SYSTEM IN THE STUDY OF GENERAL COMBINING ABILITY AND HERITABILITY IN STRAWBERRY (FRAGARIA × ANANASSA DUCH.)

Jacek Gawroński
Department of Genetics and Horticultural Plant Breeding, University of Life Sciences in Lublin, Poland

ABSTRACT

A top cross scheme was used to assess the effects of general combining ability
and narrow-sense heritability coefficients in four strawberry cultivars. Maternal
parent plants of four cultivars: ‘Elkat’, ‘Filon’, ‘Heros’ and ‘Seal’ were
crossed with two paternal cultivars: ‘Pastel’ and ‘Jota’.
The hybrids derived in this way were assessed for number of inflorescences, fruit
yield, average fruit mass, and leaf mass in 2010–2012. Estimated heritability
coefficients were 0.63–0.64 for number of inflorescences, 0.32–0.45
for fruit yield, 0.29–0.40 for average fruit mass and 0.31–0.38 for
leaf mass. The high estimated heritability for number of inflorescences indicates
that selection may help to effectively increase the value of the trait in the
offspring. The effects of general combining ability in the investigated cultivars
varied. ‘Elkat’ presented high values regarding fruit yield and number
of inflorescences for both paternal forms used as testers. The ‘Filon’ cultivar
responded similarly to applied paternal forms with regard to individual fruit
weight. The effects of combining ability of leaf mass trait were dependent upon
the paternal form used in the crossing scheme.

Key words: general combining ability, heritability coefficient, quantitative traits.

Jacek Gawroński
Department of Genetics and Horticultural Plant Breeding, University of Life Sciences in Lublin, Poland
ul. Akademicka 15
20-950 Lublin
Poland
email: jacek.gawronski@up.lublin.pl

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