Published in Scientific Papers. Series A. Agronomy, Vol. LXVI, Issue 1
Written by Velika KUNEVA, Maria SABEVA
Subjects of the present research paper are 48 pea specimens - winter varieties taken from the collection of the Institute for Plant Genetic Resources - Sadovo. The study aims at establishing the rate of genetic similarity and genetic remoteness of the specimens kept in the national gen-bank. The specimens are mainly of French and Bulgarian origin. A mathematical approach was used for their group formation - a cluster, correlation and factor analysis using the following indicators - total nitrogen, crude fibres, crude ash, total sugars and tannins. There were established strong negative correlations between: total nitrogen and crude fibres (r = - 0.896); total nitrogen and crude ash (r = -0.853), and total nitrogen and total sugars (r = - 0.886). The group formation of winter pea varieties allows higher objectivity in evaluation, as well as more possibilities for use of pea collection.
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