Morphological diversity of the Turkish apricot (Prunus armeniaca L.) germplasm in the Irano-Caucasian ecogeographical group

Authors : Kadir Uğurtan YILMAZ, Sevgi Paydaş KARGI, Salih KAFKAS

Pages : 688-694

Doi:10.3906/sag-1208-1

View : 15 | Download : 6

Publication Date : 2012-12-01

Article Type : Research Paper

Abstract :Apricot germplasm collection and characterization are the essential stages of breeding programs for diversity. Traditionally, germplasm collection and characterization are performed by describing phenological, pomological, and morphological characteristics of the germplasm. In this study, 93 apricot accessions and 1 apricot × plum hybrid insert ignore into journalissuearticles values(Kayısı Eriği); were collected from different regions of Turkey and were evaluated for 57 morphological UPOV insert ignore into journalissuearticles values(International Union for the Protection of New Varieties of Plants); characteristics, along with 13 pomological traits. Turkish apricot trees were generally found to be either strong insert ignore into journalissuearticles values(29.8%); or very strong insert ignore into journalissuearticles values(54.3%);. Only 12 accessions insert ignore into journalissuearticles values(GÜ-52, Çanakkale, Çekirge-52, Karacabey, Geç Aprikoz, Güz Aprikozu, Alyanak, Hasanbey, Alkaya, Paşa Mişmişi, Ağerik, and Ziraat Okulu); had large fruits. Of the total 93 specimens, 67 accessions did not exhibit kernel bitterness. Important dried cultivars of Turkey contain more than 25% total soluble solids insert ignore into journalissuearticles values(TSS);. The harvest period of the majority insert ignore into journalissuearticles values(84 accessions); started at the end of June and lasted until mid-July. Principle coordinate analysis insert ignore into journalissuearticles values(PCoA); and principle component analysis insert ignore into journalissuearticles values(PCA); revealed that eigenvalues of the first 3 components were able to represent 32.67% of total variance in PCoA and 23.63% of total variance in PCA. The eigenvalue of pomological PCA analysis was able to represent 73% of total variance. Significant negative correlations were determined among fruit juice acidity, TSS, and pH. The morphological distance index between Turkish apricots varied from 0.21 to 0.79. Information revealed in this study may be useful for both breeders and apricot breeding programs.
Keywords : Key words Genetic resource, collection, UPOV, apricot breeding, PCA, PCoA