Articles
INHERITANCE OF SOME COMMON BEAN (PHASEOLUS VULGARIS L.) TRAITS IN THE CROSS A 195 × KRISTAL 137
Article number
830_30
Pages
221 – 228
Language
English
Abstract
Three-year (20032006) investigations were conducted to study the inheritance of some common bean (Phaseolus vulgaris L.) traits in the cross A 195 x Kristal 137. It was found out that most of the investigated traits: height of plants, weight of over grounded plant parts, number of branches, pod-bearing nodes and pods, height of placement of the first pod, length and width of pods, number of seed-buds and seeds, mass of seeds, mass of one seed and length of seeds were with higher degree of inheritance.
This is an important indication for successful selection according to these traits.
The coefficients of inheritance of the traits length of pod peak (23,08%) and weight of pods per plant (25,74%) were lower but over 20%. The number of branches was stronger influenced by the environmental conditions.
The characteristics: number of seeds in pods, weight of pods with seeds, size and number of pods, number of pod-bearing nodes and weight of over grounded plant parts were controlled by the genotype and environmental conditions in equal degrees.
The influence of the genotype was determining for manifestation of traits size of seeds and pods as well as the number of pods placed under 10 cm.
The characteristics: number of seeds in pods, weight of pods with seeds and number of pods per plant are of great importance for the formation of common bean yields, but they showed higher variability in our investigations.
It is known that the high level of inheritance, in wide sense, is important for the first steps in selection the choice of elite plants with desired traits.
Coefficient of inheritance, in narrow sense, is important in the second part of selection creation of new breeding lines with better combinations of desired traits.
This is an important indication for successful selection according to these traits.
The coefficients of inheritance of the traits length of pod peak (23,08%) and weight of pods per plant (25,74%) were lower but over 20%. The number of branches was stronger influenced by the environmental conditions.
The characteristics: number of seeds in pods, weight of pods with seeds, size and number of pods, number of pod-bearing nodes and weight of over grounded plant parts were controlled by the genotype and environmental conditions in equal degrees.
The influence of the genotype was determining for manifestation of traits size of seeds and pods as well as the number of pods placed under 10 cm.
The characteristics: number of seeds in pods, weight of pods with seeds and number of pods per plant are of great importance for the formation of common bean yields, but they showed higher variability in our investigations.
It is known that the high level of inheritance, in wide sense, is important for the first steps in selection the choice of elite plants with desired traits.
Coefficient of inheritance, in narrow sense, is important in the second part of selection creation of new breeding lines with better combinations of desired traits.
Publication
Authors
N. Panayotov, E. Apostolova, D. Dimova, D. Svetleva
Keywords
inheritance, traits, common bean, Phaseolus vulgaris L.
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