ارزیابی تنوع صفات مورفولوژیک در اکوتیپ‌های مختلف رازیانه با استفاده از روش‌های آماری چند متغیره

نوع مقاله : مقاله پژوهشی

نویسندگان

گروه علوم و مهندسی کشاورزی؛دانشگاه پیام نور

10.22034/csrar.2022.334423.1213

چکیده

به‌منظور بررسی تنوع ژنتیکی و روابط بین صفات مورفولوژیک، آزمایشی بر روی 11 اکوتیپ رازیانه با استفاده از طرح کاملاً تصادفی با 3 تکرار، در گلخانه دانشگاه پیام نور قم در سال 1398 اجرا شد. بر اساس نتایج تجزیه واریانس اختلاف معنی‌داری میان اکوتیپ‌های مورد مطالعه برای همه صفات مشاهده گردید. اکثر صفات مورد مطالعه از وراثت‌پذیری عمومی بالایی برخوردار بودند. عملکرد دانه در گیاه همبستگی مثبت و معنی‌داری با تعداد چترک در چتر (64/0)، تعداد چتر در بوته (59/0) و تعداد شاخه‌های فرعی در گیاه (56/0) داشت. تجزیه به عامل‌ها نشان داد که سه عامل اصلی و مستقل 74/78 درصد از تغییرات کل داده‌ها را توجیه نمودند. تجزیه خوشه‌ای با استفاده از روش وارد، 11 اکوتیپ مورد بررسی را در چهار خوشه مجزا گروه‌بندی کرد. اکوتیپ‌های خوشه دوم (اردبیل و مغان) به علت داشتن مقادیر بالای صفات ارتفاع بوته، تعداد شاخه‌های فرعی در گیاه، تعداد چتر در بوته، تعداد چترک در چتر، تعداد گل در چترک، وزن هزار دانه و عملکرد دانه ارزشمند هستند و می‌توان از این اکوتیپ-ها برای گزینش اکوتیپ‌های پر محصول و صفات مورفولوژیک مطلوب در برنامه‌های اصلاحی استفاده نمود.
واژه‌های کلیدی: تجزیه به عامل، تجزیه خوشه‌ای، همبستگی، وراثت‌پذیری.

کلیدواژه‌ها


عنوان مقاله [English]

Evaluation of morphological traits variation in different fennel ecotypes using multivariate statistical methods

نویسندگان [English]

  • Shahram Riahinia
  • maryam danesh gilevaei
Department of Agricultural Science and Engineering, Payame Noor University
چکیده [English]

To investigate genetic diversity and relationships among morphological traits, an experiment was performed using a completely randomized design with 3 replications on 11 fennel ecotypes in the greenhouse of Payame Noor University of Qom, in 2020. Based on the results of the analysis of variance, a significant difference was observed among the studied ecotypes for all traits. Most of the studied traits had high broad-sense heritability. Seed yield per plant had a positive and significant correlation with the number of umbellets per umbel (0.64), number of umbels per plant (0.59), and number of branches per plant (0.56). Factor analysis showed that three main and independent factors explained 78.74 percent of the total variance in all ecotypes. Cluster analysis using the Ward method grouped 11 studied ecotypes into four separate clusters. The second cluster ecotypes (Ardabil and Moghan) are valuable due to their high values of plant height, number of branches per plant, number of umbels per plant, number of umbellets per umbel, number of flowers per umbellets, 1000-seed weight, and seed yield, and these ecotypes can be used to select of high yielding ecotypes and desirable morphological traits in breeding programs.

Abstract
To investigate genetic diversity and relationships among morphological traits, an experiment was performed using a completely randomized design with 3 replications on 11 fennel ecotypes in the greenhouse of Payame Noor University of Qom, in 2020. Based on the results of the analysis of variance, a significant difference was observed among the studied ecotypes for all traits. Most of the studied traits had high broad-sense heritability. Seed yield per plant had a positive and significant correlation with the number of umbellets per umbel (0.64), number of umbels per plant (0.59), and number of branches per plant (0.56). Factor analysis showed that three main and independent factors explained 78.74 percent of the total variance in all ecotypes. Cluster analysis using the Ward method grouped 11 studied ecotypes into four separate clusters. The second cluster ecotypes (Ardabil and Moghan) are valuable due to their high values of plant height, number of branches per plant, number of umbels per plant, number of umbellets per umbel, number of flowers per umbellets, 1000-seed weight, and seed yield, and these ecotypes can be used to select of high yielding ecotypes and desirable morphological traits in breeding programs.

Abstract
To investigate genetic diversity and relationships among morphological traits, an experiment was performed using a completely randomized design with 3 replications on 11 fennel ecotypes in the greenhouse of Payame Noor University of Qom, in 2020. Based on the results of the analysis of variance, a significant difference was observed among the studied ecotypes for all traits. Most of the studied traits had high broad-sense heritability. Seed yield per plant had a positive and significant correlation with the number of umbellets per umbel (0.64), number of umbels per plant (0.59), and number of branches per plant (0.56). Factor analysis showed that three main and independent factors explained 78.74 percent of the total variance in all ecotypes. Cluster analysis using the Ward method grouped 11 studied ecotypes into four separate clusters. The second cluster ecotypes (Ardabil and Moghan) are valuable due to their high values of plant height, number of branches per plant, number of umbels per plant, number of umbellets per umbel, number of flowers per umbellets, 1000-seed weight, and seed yield, and these ecotypes can be used to select of high yielding ecotypes and desirable morphological traits in breeding programs.

کلیدواژه‌ها [English]

  • Cluster analysis
  • Correlation
  • Factor analysis
  • Heritability

مقالات آماده انتشار، اصلاح شده برای چاپ
انتشار آنلاین از تاریخ 05 مرداد 1401
  • تاریخ دریافت: 25 اسفند 1400
  • تاریخ بازنگری: 02 اردیبهشت 1401
  • تاریخ پذیرش: 04 مرداد 1401
  • تاریخ اولین انتشار: 05 مرداد 1401