نوع مقاله : مقاله پژوهشی
نویسندگان
1 گروه علوم و مهندسی باغبانی و فضای سبز، دانشکده کشاورزی، د انشگاه تهران، کرج، ایران
2 گروه علوم باغبانی، دانشکده کشاورزی دانشگاه تهران، کرج، ایران
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
This study was conducted to evaluate the phenotypic diversity among 39 tomato genotypes (Solanum lycopersicum L.). The plant materials included a range of both local and commercial cultivars that were examined to identify valuable traits for breeding and crop improvement. The experiment was carried out under field conditions using a randomized complete block design (RCBD) with three replications. The evaluated traits encompassed morphological characteristics (such as fruit shape and size), physical attributes (firmness and density), chemical properties (pH, titratable acidity, TSS, and TSS/TA ratio), as well as descriptive traits such as fruit color, pericarp thickness, and number of locules. The results of analysis of variance and Duncan’s multiple range test revealed significant differences among genotypes at the 1% probability level. Traits such as total fruit weight per plant, number of fruits, fruit firmness, and TSS/TA ratio showed the greatest variation among the genotypes. To identify phenotypic clustering patterns, hierarchical cluster analysis using Ward’s method was also performed, resulting in distinct genotype groupings. The findings of this study can serve as a valuable basis for selecting superior parental lines of tomato in breeding programs aimed at enhancing yield, fruit quality, and developing cultivars adapted to various production goals and market demands.
کلیدواژهها [English]
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