دورية أكاديمية
Enhancing yield and oil content in oilseed rape hybrids: Insights from line × tester and SIIG approaches.
العنوان: | Enhancing yield and oil content in oilseed rape hybrids: Insights from line × tester and SIIG approaches. |
---|---|
المؤلفون: | Hashemi, Parastoo Sadat, Mohammadi, Abdollah, Alizadeh, Bahram, Mostafavi, Khodadad, Amiri Oghan, Hassan |
المصدر: | Food Science & Nutrition; May2024, Vol. 12 Issue 5, p3628-3641, 14p |
مصطلحات موضوعية: | RAPESEED, SEED yield, PETROLEUM, CULTIVARS, BLOCK designs |
مستخلص: | Background: The production of high‐oil‐yielding hybrid varieties is a primary objective in oilseed rape (Brassica napus L.) breeding programs. Biometric genetic experiments such as line × tester provide valuable insights into the genetic structure of traits associated with high oil yield. Methods: In this study, 21 winter hybrids of oilseed rape were evaluated, which were generated by crossing three restorers with seven CMS lines. The experiment was conducted using a line × tester experiment based on a completely randomized block design. Phenological, agronomic, yield, and oil yield components were assessed in this study. The ideal genotype selection index (SIIG) methodology was also employed to identify superior hybrids based on all studied traits simultaneously. Results: Significant differences were observed between the obtained hybrids and the check cultivars. Heritability analysis revealed that phenological traits were primarily controlled by additive effects, while agronomic and qualitative traits were mainly influenced by non‐additive gene effects. Both broad‐sense and narrow‐sense heritability exhibited a wide range, underscoring the importance of genetic variance. Notably, the hybrids T1 × L5, T1 × L6, and T3 × L1 showed significant specific combining ability values of 394.74, 541.73, and 1236.79, respectively, making them the top specific combinations for increasing seed yield. Based on the SIIG index, hybrids T3 × L1, T1 × L5, T1 × L3, and T2 × L3 emerged as high‐oil‐yielding hybrids with desirable agronomic traits. Conclusions: The identified superior hybrids by line × tester and SIIG approaches hold promise for the development of high‐yielding oilseed rape cultivars with desirable agronomic traits in oilseed rape breeding programs. [ABSTRACT FROM AUTHOR] |
Copyright of Food Science & Nutrition is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
قاعدة البيانات: | Complementary Index |
كن أول من يترك تعليقا!