INHERITANCE OF RESISTANCE TO MAIZE STEM BORER (Fusseola Fusca) - Kankundiye, Lydie;Edema, Dr. Richard;Asea, Godfrey
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The 2 insects pests, stem borers (Busseola busca) and maize weevil (sitophilus zeamais) are very destructive grain pests, hard to control, and cause huge economic losses. The aim of this study was to determine the mechanisms of stem borer resistance in selected weevil resistant inbred lines and determine their combining ability as well as the correlation between stem borer resistance and weevil resistance. The research was conducted at National Crop Resources Research Institute's (NaCRRI) main station in Namulonge, central Uganda. The genetic material used include 4 inbred lines resistant to…mehr

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Produktbeschreibung
The 2 insects pests, stem borers (Busseola busca) and maize weevil (sitophilus zeamais) are very destructive grain pests, hard to control, and cause huge economic losses. The aim of this study was to determine the mechanisms of stem borer resistance in selected weevil resistant inbred lines and determine their combining ability as well as the correlation between stem borer resistance and weevil resistance. The research was conducted at National Crop Resources Research Institute's (NaCRRI) main station in Namulonge, central Uganda. The genetic material used include 4 inbred lines resistant to weevil (locally adapted) and 6 stem borer resistant inbred lines (exotic lines). The crossing of parental materials was carried out using North Carolina 2 mating design. The hybrids obtained from the first season were planted using alpha lattice design.The study identified 5 inbreds that combined well for leaf damage, number of entry/exit holes and tunnel length, 6 hybrids resistant to stem borer and 1 hybrid resistant to both weevil and stem borer. The correlation between stem borer resistance and weevil resistance was non-significant.
Autorenporträt
Me llamo Lydie Kankundiye. Trabajo para la Junta de Desarrollo de Recursos Agrícolas y Animales de Ruanda (RAB). He estado trabajando en el cultivo de camote desde 2007 y he contribuido al desarrollo de variedades de camote liberadas, pero actualmente, desde marzo de 2021, estoy trabajando como mejoradora de hortalizas en el programa de horticultura.