Institute of Agriculture

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    Item type:Publication,
    Variation of Fruit Morphological Traits in Capsicum annuum L. germplasm collection from North Macedonia
    (Journal of Agricultural, Food and Environmental Sciences (JAFES), 2022-06)
    Drvoshanova Biljana
    ;
    Ivanovska Sonja
    ;
    Jakulovska Mirjana
    ;
    Popsimonova Gordana
    The aim of this research was to evaluate the phenotypic divergence of 33 local pepper landraces from North Macedonia based on their quantitative and qualitative fruit traits. According to the vernacular names they belong to the longum group and are traditionally consumed mostly in technological maturity. The experiment was laid out in randomized block design in three replications in 2018. Six quantitative fruit traits were evaluated: fruit length, fruit width, fruit weight, fruit pedicel length, fruit wall thickness and number of locules, as well as several qualitative traits: colour at intermediate stage, colour at mature stage, fruit shape, shape at blossom end, cross-sectional corrugation, ripe fruit persistence – pedicel with fruit and pedicel with stem. The PCA analysis identified that two principal components explain more than 77% of the variability based on the quantitative fruit parameters. The cluster analysis classified the accessions in three clusters, where the third cluster grouped seven local landraces that had highest values for fruit width, fruit weight and pericarp thickness as major yield components. It can be concluded that the results obtained for the fruit variability in the investigated 33 local pepper landraces from North Macedonia provided valuable information about the diversity of the collection. Furthermore, the local landraces identified in cluster three can be considered as potential source for selection of preferred traits or for further utilization in development of recommendations for direct production in the rural areas.
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    Item type:Publication,
    Evaluation of fruit traits in pepper (type kapiya) collection from North Macedonia
    (International Society for Horticultural Science (ISHS), 2021-08)
    Drvoshanova, B.
    ;
    Ivanovska, S.
    ;
    Jankulovska, M.
    ;
    Popsimonova, G.
    ;
    Ibushoska, A.
    Fruit traits for 19 accessions of Capsicum annuum L. from North Macedonia were evaluated. The vernacular names indicated that these accessions belong to kapiya type or peppers intended for processing. The trial was conducted in 2018 in the Skopje area on open field in a randomized block design with three replications. Morphological characterization was conducted for several quantitative (length, diameter, weight, pericarp thickness) and qualitative (color, shape, shape at pedicel attachment and blossom end and cross-sectional corrugation) fruit traits. Average fruit weight ranged from 66.12 g (genotype FZNH 319) to 159.51 g (genotype FZNH 537), with average fruit length from 12.46 cm (genotype FZNH 528) to 18.12 cm (genotype FZNH 268). The fruit shape in some accessions was not typical for kapiya types, but all accessions had high average values for fruit wall thickness which is the preferred parameter for processing. The analysis revealed that there are significant statistical differences between the evaluated accessions. Hierarchical cluster analysis was performed and the genotypes were grouped into three clusters. The PCA (principal component analysis) identified 3 principal components explaining 74.63% of the total variability. The data obtained can be useful in identifying potential genotypes for further selection or recommendation for direct inclusion in production, since the majority of producers of this type of pepper prefer local or commercial cultivars instead of hybrids.