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تعیین صفات اصلی و شناسایی ارقام برتر تجاری کدو (Cucurbita spp.)با استفاده از آزمون تمایز بر اساس دستورالعمل UPOV | ||
| علوم و فناوری بذر ایران | ||
| مقاله 6، دوره 15، شماره 2 - شماره پیاپی 42، تیر 1405، صفحه 95-112 اصل مقاله (1.05 M) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22092/ijsst.2024.366980.1542 | ||
| نویسندگان | ||
| سعید امینی* 1؛ شکوفه قیوم اصغری2؛ زهرا طاهرنژاد3؛ محمدرضا جزایری1؛ زهرا کربلایی هرفته2 | ||
| 1استادیار پژوهش، معاونت شناسایی و ثبت ارقام گیاهی، مؤسسه ثبت و گواهی بذر و نهال، سازمان تحقیقات، آموزش و ترویج کشاورزی، کرج، ایران. | ||
| 2کارشناس، مؤسسه ثبت و گواهی بذر و نهال، سازمان تحقیقات، آموزش و ترویج کشاورزی، کرج، ایران. | ||
| 3پژوهشگر، مؤسسه ثبت و گواهی بذر و نهال، سازمان تحقیقات، آموزش و ترویج کشاورزی، کرج، ایران. | ||
| چکیده | ||
| شناسایی ارقام برای حفظ مالکیت معنوی آنها و تحریک خلاقیت به‌نژادگران اهمیت دارد. ارزیابی مورفولوژیکی یکی از تکنیک‌های اصلی برای شناسایی ارقام در مزرعه است که شامل آزمون‌های تمایز، یکنواختی و پایداری (DUS) است. در این پژوهش در فصل‌های رشد 1401 و 1402 انجام شد و صفات مورفولوژیکی DUS شانزده رقم هیبرید C. spp L. (ده رقم C. pepo L. و شش رقم C. moschata L.) برای حفظ تنوع زیستی ارزیابی شد. از بین این صفات، بیست صفت اصلی، از جمله یازده صفت مرتبط با میوه، بر اساس نتایجScore PCA برای تسهیل عملکرد ارزیابی مزرعه‌‌ای و بهبود دقت شناسایی ارقام انتخاب شد. بر اساس نتایج شکل میوه (P30) شاخص مهمی در تمایز ارقام است که 11/13 درصد از واریانس مورفولوژیکی را پوشش می‌دهد. نمودار تجزیه و تحلیل مؤلفه‌های اصلی (PCA) ارقام را به دو گروه متمایز C. pepo L. و C. moschata L. طبقه‌بندی کرد. ضریب تغییرات در بین صفات مورد بررسی از 5.34 تا 81.31 درصد متغیر بود. بر اساس تحلیل رتبه M-TOPSIS، ارقام Selena وWalth Ambutternut به‌ترتیب به‌عنوان برترین ارقام C. pepo L. وC. moschata L. بالاترین امتیاز را بدست آوردند. | ||
| کلیدواژه‌ها | ||
| Cucurbita Spp L؛ آزمون مورفولوژیکی DUS؛ صفات اصلی DUS؛ همبستگی؛ M-TOPSIS | ||
| عنوان مقاله [English] | ||
| Identification of top-notch commercial cultivars and determination of core traits in Cucurbita spp. associated with distinctness based on UPOV guideline | ||
| نویسندگان [English] | ||
| saeed amini1؛ Shokoufeh Ghayoom-Asghari2؛ Zahra Tahernezhad3؛ MohammadReza Jazayeri Noushabadi1؛ Zahra Karbalaiee-Harafte2 | ||
| 1Research Assistant Professor, Seed and Plant Certification and Registration Institute (SPCRI), Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran. | ||
| 2Expert, Seed and Plant Certification and Registration Research Institute (SPCRI), Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran. | ||
| 3Researcher, Seed and Plant Certification and Registration Research Institute (SPCRI), Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran. | ||
| چکیده [English] | ||
| 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. | ||
| کلیدواژه‌ها [English] | ||
| Cucurbita spp L, Morphological DUS test, Core DUS traits, Correlation, PCA, M-TOPSIS | ||
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