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تنوع ژنتیکی برای عملکرد میوه و صفات مرتبط با آن در ژنوتیپهای بادمجان | ||
| نهال و بذر | ||
| دوره 39، شماره 4، دی 1402، صفحه 596-567 اصل مقاله (1.06 M) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22092/spj.2024.364264.1335 | ||
| نویسندگان | ||
| ابراهیم پارسا اردکانی1؛ مریم گل آبادی2؛ ولی اله محمدی* 3؛ محمدرضا بی همتا4؛ حسین صارمی5 | ||
| 1دانشجوی دکتری، گروه زراعت و اصلاح نباتات، دانشکده علوم و مهندسی کشاورزی، دانشگاه تهران، کرج، ایران. | ||
| 2دانشیار، گروه کشاورزی-مهندسی تولید و ژنتیک گیاهی، دانشکده کشاورزی و منابع طبیعی، دانشگاه آزاد اسلامی واحد خوراسگان (اصفهان)، ایران. | ||
| 3دانشیار، گروه زراعت و اصلاح نباتات، دانشکده علوم و مهندسی کشاورزی، دانشگاه تهران، کرج، ایران. | ||
| 4استاد، گروه زراعت و اصلاح نباتات، دانشکده علوم و مهندسی کشاورزی، دانشگاه تهران، کرج، ایران. | ||
| 5استاد، گروه گیاهپزشکی، دانشکده علوم و مهندسی کشاورزی، دانشگاه تهران، کرج، ایران. | ||
| چکیده | ||
| به منظور بررسی تنوع ژنتیکی برای عملکرد میوه و صفات مرتبط با آن در 86 ژنوتیپ بادمجان شامل ارقام محلی و تجاری مورد استفاده کشاورزان ایران، آزمایشی در قالب طرح بلوک کامل تصادفی با سه تکرار در زمستان 1398 در داخل گلخانه شرکت نگین بذر دانش، دانشگاه آزاد اسلامی واحد اصفهان (خوراسگان) اجرا شد. عملکرد میوه در گیاه، تعداد میوه در گیاه، وزن میوه، ارتفاع گیاه، طول میوه، عرض میوه، تعداد میانگره و فاصله میانگره ژنوتیپ های بادمجان اندازه گیری و مورد ارزیابی قرار گرفت. دامنه عملکرد، تعداد میوه و وزن میوه درگیاه برای ژنوتیپ‌ها به ترتیب از 60/3گرم تا 5151 گرم در گیاه، 1/23الی 39 میوه در گیاه و 14/3گرم تا 387/9گرم در گیاه متغیر بود. تجزیه واریانس داده ها نشان داد ژنوتیپ‌ها از نظر کلیه صفات اندازه گیری شده تفاوت معنی‌داری داشتند. مقایسه میانگین‌ها نشان داد رقم سابل بیشترین عملکرد میوه را داشت. پس از آن ژنوتیپهای شماره 4، 2 و 5 به ترتیب در گروه دوم قرار گرفتند و بین آنها تفاوت معنی دار وجود نداشت. ژنوتیپهای شماره 76، 72 ، 70 ، 74 و 66 به ترتیب کمترین عملکرد میوه را داشتند و بین آنها تفاوت معنی‌داری وجود نداشت. تجزیه به مؤلفه‌های اصلی نشان داد سه عامل مستقل از هم، مجموعاً 63 درصد از تغییرات را توجیه کردند. تجزیه خوشهای به روش وارد(Ward) ، ژنوتیپهای بادمجان ارزیابی شده را در چهار گروه متفاوت قرار داد.به طوری که این نتایج تا حد زیادی با عملکرد میوه همخوانی داشتند. رگرسیون گام‌به‌گام نشان داد که سه صفت تعداد میوه در گیاه، وزن میوه و عرض میوه بیشترین تأثیر را بر روی عملکرد میوه داشتند. تجزیه مسیر نیز نشان داد وزن میوه و تعداد میوه بر روی عملکرد میوه تأثیر مستقیم داشتند و تأثیر غیرمستقیم این صفات چندان قابلتوجه نبود. از نتایج این پژوهش میتوان در برنامه های بهنژادی بادمجان برای تولید جمعیت های اولیه و انتخاب لاین خالص و ارقام جدید استفاده کرد. | ||
| کلیدواژه‌ها | ||
| بادمجان؛ تعداد میوه در گیاه؛ وزن میوه؛ عملکرد میوه در گیاه؛ ژرم‌پلاسم | ||
| عنوان مقاله [English] | ||
| Genetic Diversity for Fruit Yield and Yield-Related Traits in Eggplant Genotypes | ||
| نویسندگان [English] | ||
| E. Parsa Ardakani1؛ M. Golabadi2؛ V. Mohammadi3؛ M. R. Bihamta4؛ H. Saremi5 | ||
| 1Ph. D. Student, Department of Agronomy and Plant Breeding, Faculty of Agricultural Science and Engineering, University of Tehran, Karaj, Iran. | ||
| 2Associate Professor, Department of Agriculture Production and Plant Genetics Engineering, Faculty of Agriculture and Natural Resources, Islamic Azad University, Isfahan (Khorasgan) Branch, Iran. | ||
| 3Associate Professor, Department of Agronomy and Plant Breeding, Faculty of Agricultural Science and Engineering, University of Tehran, Karaj, Iran. | ||
| 4Professor, Department of Agronomy and Plant Breeding, Faculty of Agricultural Science and Engineering, University of Tehran, Karaj, Iran. | ||
| 5Professor, Department of Plant Protection, Faculty of Agriculture and Natural Recourses, University of Tehran, Karaj, Iran. | ||
| چکیده [English] | ||
| To study genetic diversity for yield and yield-related traits in eggplant, 86 local and commercial eggplant cultivars, grown by farmers in Iran, were evaluated for eight yield-related traits using randomized complete block design with three replications under greenhouse conditions in winter 2020. Analysis of variance of data showed that genotypes had significant differences for all measured traits. Fruit yield plant-1, fruit number plant-1 and fruit weight of genotypes varied from 60.3 to 5151 grams, 1.23 to 39 and 14.3 to 387.9 grams, respectively. Mean comparison revealed that the cv. Sable had the highest fruit yield plant-1 followed by genotypes no. 4, 2 and 5, respectively. Genotypes no. 76, 72, 70, 74 and 66 had the lowest fruit yield plant-1, respectively. Principal components analysis showed that three independent components explained 63% of the total variation. Cluster analysis using Ward method clustered studied eggplant genotypes in four different groups. These results were consistent with fruit yield performance of eggplant genotypes. Stepwise regression showed that three traits of fruit number plant-1, fruit weight and fruit width had the greatest effect on fruit yield plant-1. Path analysis showed that fruit weight and fruit number plant-1 traits had direct effect on fruit yield plant-1. The results of this research can be used to develop breeding populations for selection pure lines in eggplant breeding programs. Keywords: Eggplant, fruit number plant-1, fruit weight, fruit yield plant-1, germplasm. Introduction Eggplant (Solanum melongena L.) is the fifth most important vegetable crop in the world. Iran ranks sixth in global eggplant production. Currently, all the commercial hybrid cultivars grown in Iran are imported, and the efforts of Iranian eggplant breeders for development of hybrid cultivars are progressing. The initial step in eggplant breeding involves collecting germplasm and assessing the level of genetic diversity of different traits (Prohens et al., 2005) The objectives of this research were: 1. Assessment of the genetic diversity in eggplant germplasm, 2. Grouping eggplant genotypes and evaluating the relationships between fruit yield related traits, and 3. Selection of superior genotypes to be used for crossing in eggplant breeding programs. Materials and Methods In this study, 86 different commercial eggplant genotypes were collected from different sources. The seeds of eggplant genotypes were sown in greenhouse using complete randomized block design with three replications under greenhouse conditions at Negin Bazr Danesh Company, Khorasgan Azad University, Isfahan, Iran, in winter 2020. Genotypes fruit yield plant-1 and yield-related traits were measured evaluated. Normality of the data was tested using Minitab 18.1. Analysis of variance as well as mean comparisons were performed, using LSD, using SAS 9.4. Cluster analysis, principal component analysis, and correlation between traits were performed using Minitab 18.1 for grouping genotypes and studying trait relationships. Path analysis was carried out by Path 2 software. Results and Discussion Fruit yield plant-1, fruit number plant-1 and fruit weight of genotypes varied from 60.3 to 5151 grams, 1.23 to 39 and 14.3 to 387.9 grams, respectively. Analysis of variance of data showed that genotypes had significant differences for all measured traits. Mean comparison revealed that the cv. Sable had the highest fruit yield plant-1 followed by genotypes no. 4, 2 and 5, respectively. Genotypes no. 76, 72, 70, 74 and 66 had the lowest fruit yield plant-1, respectively. Principal components analysis showed that three independent components explained 63% of the total variation. Cluster analysis using Ward method clustered studied eggplant genotypes in four different groups. These results were consistent with fruit yield performance of eggplant genotypes. Stepwise regression showed that three traits of fruit number plant-1, fruit weight and fruit width had the greatest effect on fruit yield plant-1. Path analysis showed that fruit weight and fruit number plant-1 traits had direct effect on fruit yield plant-1. These results were consistent with fruit yield performance of eggplant genotypes. Stepwise regression showed that three traits of fruit number plant-1, fruit weight and fruit width had the greatest effect on fruit yield plant-1. Path analysis showed that fruit weight and fruit number plant-1 traits had direct effect on fruit yield plant-1. Kameli et al. (2020) evaluated different eggplant genotypes and grouped them in four groups using cluster analysis. Genotypes in different groups can be used in hybridization programs to incorporate genetic diversity in breeding materials. Uddin et al. (2021) studied 130 local eggplant germplasm to select parents for eggplant breeding program and reported that fruit yield plant-1 significantly correlated with fruit diameter, number of fruits plant-1 and fruit weight. Genetic diversity in Iranian eggplant landraces has been used for selection of pure lines and new cultivars in the national eggplant breeding program of Iran (Bagheri et al., 2014). Therefore, it is suggested that the eggplant cultivars in the first and second groups, in the present research, can be used to develop breeding populations for selection pure lines and new cultivars in eggplant breeding programs. References Bagheri, M., Keshavarz, S., Zarbakhsh, A.J. and Salmani, K.A. 2014. Selected lines from Iranian eggplant landraces in advanced yield trails. Seed and Plant Journal, 29(1), pp.857-859 (in Persian). DOI: 10.22092/spij.2017.111195 Kameli, A.M., Kiani, G. and Kazemitabar, S.K. 2020. The evaluation of phenotypic diversity in eggplant (Solanum melongena L.) genotypes. Journal of Vegetables Sciences, 3(6), pp.31-41. DOI: 10.22034/iuvs.2020.114655.1071 Prohens, J., Blanca, J.M. and Nuez, F. 2005. Morphological and molecular variation in a collection of eggplants from a secondary center of diversity: Implications for conservation and breeding. Journal of the American Society for Horticultural Science, 130(1), pp.54-63. DOI: 10.21273/JASHS.130.1.54 Uddin, M.S., Billah M., Afroz R., Rahman, S., Jahan, N., Hossain, M.G., Bagum S.A., Uddin, M.S., Khaldun, A.B.M., Azam, M.G., Hossein, N., Akanada, M.A.L., Alhormani, M., Gaber, A. and Hossein, A. 2021. Evaluation of 130 eggplant (Solanum melongena L.) genotypes for future breeding program based on qualitative and quantitative traits, and various genetic parameters. Horticulturae, 7(10), 376. DOI: 10.3390/horticulturae7100376 | ||
| کلیدواژه‌ها [English] | ||
| Eggplant, fruit number plant-1, fruit weight, fruit yield plant-1, germplasm | ||
| مراجع | ||
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