Control Strategies Against the Infestation of Striga Hermonthica (Del.) Benth. In Millet [Pennisetum Glaucum (L.) R. Br.] Using Existing Cultural Management Practices in Farmers' Fields in Northern Côte D’ivoire

Аннотация

Striga hermonthica remains one of the main constraints to pearl millet production in Côte D’ivoire. The aim of the study was to identify the most effective modes and periods of application of local products such as compost and Parkia biglobosa fruit powder against its infestation. Thus, a study was carried out using a susceptible pearl millet variety to Striga hermonthica . The experimental design was randomized complete block design with 16 treatments in three replications. Principal component analysis (PCA) and ascending hierarchical classification (AHC) revealed four groups of treatments. The first group, comprising four treatments (T1, T2, T3 and T4), was characterized by good development and a high number of Striga hermonthica plants per plot (36.01 cm in height and 36.86 plants). Group 2, comprising three treatments (T8, T9 and T13), was characterized by late emergence (65.96 days after sowing) and a low number of Striga hermonthica plants per plot (15.92 plants). Group 3 was made up of six treatments (T0, T5, T6, T11, T12 and T14) which showed no particular effect on the variables studied. Group 4, comprising three treatments (T7, T10 and T15), was characterized by good millet ear characteristics (12.80 g per 1 ear and 7.27 g grain weight per ear). Thus, the treatments in groups 2 and 4 proved to be more effective in managing Striga hermonthica infestation in millet.