Document Type : Original Article
Authors
- saeed amini 1
- Shokoufeh Ghayoom-Asghari 2
- Zahra Tahernezhad 3
- MohammadReza Jazayeri Noushabadi 1
- Zahra Karbalaiee-Harafte 2
1 Research Assistant Professor, Seed and Plant Certification and Registration Institute (SPCRI), Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran.
2 Expert, Seed and Plant Certification and Registration Research Institute (SPCRI), Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran.
3 Researcher, Seed and Plant Certification and Registration Research Institute (SPCRI), Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran.
Abstract
Variety identification is critical for preserving varieties' intellectual property and stimulating breeding creativity. One of the main techniques employed for identifying cultivars in the field is morphological evaluation, which includes tests for distinctness, uniformity, and stability (DUS). This research was carried out in the 2022 and 2023 growing seasons. It evaluates the DUS morphological traits of sixteen C. spp L. (ten C. pepo L. and six C. moschata L.) hybrid cultivars via visual and measurable traits investigation to safeguard their biological diversity. Out of these, twenty core traits, including eleven fruit-related characteristics, have been chosen based on PCA score results to streamline field monitoring performance and utilized to improve identification accuracy. The results show that the fruit's general shape is a vital indicator in cultivar differentiation, which explained 13.11% of the morphological variance. The scatter plot outcomes of principal component analysis (PCA) based on morphological DUS traits indicated two distinguished classifications: C. pepo L. and C. moschata L. clusters. The coefficient of variation (CV, %) among examined traits ranged from 5.34% to 81.31%, with an average of 27.14%. Based on the M-TOPSIS rank analysis approach, Selena and Walth Ambutternut were identified as the highest-score zucchini (vegetable marrow) and squash cultivars, respectively.
Keywords
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