دورية أكاديمية

Soybean genotypes selection with resistance to White Mold and agronomic performance from moderately resistant parents

التفاصيل البيبلوغرافية
العنوان: Soybean genotypes selection with resistance to White Mold and agronomic performance from moderately resistant parents
المؤلفون: Polloni-Barros, Lorraine Cristina, Hamawaki, Osvaldo Toshiyuki, Polloni, Lorena, Barros, Heber Leão Silva, Morais, Tâmara Prado de, Hamawaki, Raphael Lemes, Hamawaki, Cristiane Divina Lemes, Juliatti, Fernando Cezar, Nogueira, Ana Paula Oliveira
المصدر: Scientia Agricola. January 2022 79(5)
بيانات النشر: Escola Superior de Agricultura "Luiz de Queiroz", 2022.
سنة النشر: 2022
مصطلحات موضوعية: Glycine max, generation analysis, genetic parameters, disease resistance, plant breeding
الوصف: White Mold (WM) is a yield–limiting disease found in soybean. However, up to now no cultivars have been genetically resistant to this disease. Given this context, the present study aimed to develop superior soybean lines with resistance to WM, while maintaining other desirable agronomic traits. Two early maturing soybean cultivars (i.e., EMGOPA 316 and MG/BR 46–Conquista), moderately resistant to WM were used for biparental crosses from which the analyzed population was derived. Therefore, we assessed the resistance to WM in early generation testing of this population. Additionally, we determined the agronomic traits, genetic parameters and selection gains. From 348 F2 genotypes, 35 transgressive genotypes moderately resistant to WM were identified, amongst which 22 genotypes showed desirable agronomic traits for early cycle and grain yield. Moreover, 69 lines were selected as the most promising genotypes for each agronomic trait (i.e. based on the number of days to flowering and maturity, plant height at flowering and maturity, number of nodes on main stem at flowering and maturity, number of pods, grain yield, etc.). Among these selected lines, ten progenies emerged as the superior genotypes for grain yield and early cycle. All together, these results demonstrated that the cross between EMGOPA 316 × MG/BR 46 (Conquista) revealed promising progenies with moderate resistance to WM and/or desirable agronomic traits. Thus, these lines could be used as future resources for breeding efforts aimed at improving resistance to WM.
نوع الوثيقة: article
وصف الملف: text/html
اللغة: English
تدمد: 0103-9016
DOI: 10.1590/1678-992x-2021-0050
URL الوصول: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162022000501101
حقوق: info:eu-repo/semantics/openAccess
رقم الأكسشن: edssci.S0103.90162022000501101
قاعدة البيانات: SciELO
الوصف
تدمد:01039016
DOI:10.1590/1678-992x-2021-0050