<![CDATA[The data available on the study of corn parental lines against weeds in Côte d'Ivoire is still limited. The principal objective of the present study was to assess the agro-morphological performance of those resistant to Striga hermonthica. Specifically, the objective was to as-certain the hybrid parents of twenty-four individuals from IITA under conditions of artificial Striga infestation. The trials were conducted at the CNRA research station in Ferkessédougou, located in northern Côte d'Ivoire. The experimental design was a randomized complete block with three replications. Nine CIMMYT/IBPGR were used. Analy-sis of variance revealed significant differences between the lines about the different agro-morphological traits. Hierarchical ascending classification (HAC) revealed variability structured into four groups of morphological diversity. Group 2 and Group 4, respectively, con-tained the earliest (FM = 57.93 +- 1.72 and 58.62 ± 3.15) and most productive (NER = 21.25 +- 4.57 and 13.70 +- 2.77) lines, which also exhibit very good emergence density (DL = 28.25 ± 5.13 and 25.00 +- 7.50). Group 3 contained the intermediate lines (FM = 61.50 +- 1.88; FF = 63.18 +- 2.64; NER = 10.81 +- 5.27; DL = 23.12 +- 8.09). Group 1 contained the late lines (FM = 66.50 +- 2.82; FF = 68 ± 0.00), which demonstrated reduced productivity (NER = 3.75 +- 1.76) and exhibit-ed a low emergence density (DL = 9.25 +- 10.25). Discriminant factor analysis (DFA) identified nine parental lines in groups 2 and 4 that exhibited favorable characteristics about early maturity and produc-tivity. These lines may be used as hybrid parents in a program de-signed to enhance corn productivity in Côte d'Ivoire.]]>
Copyrights © 2025
