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- 저자 : Oppong Allen (검색결과 1 건)
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Stability analysis of yield and aflatoxin accumulation resistance in maize using GGE biplot
Oppong Allen,Dadzie Abu Mustapha,Ifie Beatrice Elohor,Asante Maxwell D.,Prempeh Ruth N. A.,Abrokwah Linda A.,Kubi Zipporah Appiah,Marfo Esther A. 한국작물학회 2023 Journal of crop science and biotechnology Vol.26 No.2
Maize (Zea mays L.) is the most important cereal crop in sub-Saharan Africa. However, its production is constrained by many factors including low yields and afatoxin contamination. Host resistance to afatoxin accumulation and productive hybrid varieties are seen as key approaches in addressing these challenges. Sixteen afatoxin-resistant inbreds obtained from Corn Host Plant Resistance Research Unit (CHPRRU), USDA ARS in Mississippi, USA, CIMMYT, IITA, etc., were crossed as males to six locally adapted inbreds in a North Carolina II design to generate 160 new hybrids and planted together with 9 checks using 13×13 lattice with three replications. The new hybrids were evaluated across six environments. Thirty-one of the most promising hybrids were subjected to the GGE biplot analysis to determine their stability for yield and afatoxin accumulation resistance. Genotype, G10 (ENTRY-5×Tzi8, G20 (TZEE-15×CML343, G28 (TZEEI-6×CML247 and G26 (TZEEI-6×CML11 were highly stable hybrids for yield while G08 (ENTRY-5×Ki3, G11 (ENTRY-85×CML247 and G19 (TZEEI-15×MP715 were relatively stable for afatoxin accumulation resistance. This means that it is possible to produce high-yielding afatoxin-resistant hybrids for consumers in the trial agro-ecologies.
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