The following study sought to determine yield stability and quality traits in the vegetative generation of highly productive protoclones chosen through clonal selection in promising grape (V. vinifera L.) genotypes. In determining the degree of variability for various quantitative and qualitative traits, growing the selected protoclones of grapevines occurred under various environmental conditions. The newly identified clonal forms proved genetically more stable and homogeneous than their parental genotypes for phenotypic traits, and the degree of variability in their vegetative populations was much lower. The results further enunciated the relative stability of yield and quality parameters of highly productive clones, showing chief association with the clonal breeding.
Grape (V. vinifera L.), promising populations, genetic variability, stability, yield and quality traits, quantitative and qualitative variables
The newly identified clonal forms of the grape (V. vinifera L.) appeared genetically more stable and homogeneous than their parental genotypes for phenotypic traits. The degree of variability in their vegetative population was much lower, and the clonal selection was successful.