Methodology for screening sorghum resistance to storage pests
1996
Leuschner, K.
To assist plant breeder in obtaining suitable material for screening sorghum resistance to storage insect attack, test grain from a susceptible variety was used to determine the best combination of minimal trial material with optimal infestation. Three masses of 10, 15 and 20 g were infested with 10, 15, 20, 25, 30, 35, and 40 10-day-old adult weevils (Sitophilus oryzae) and with the same quantities of eggs of the grain moth (Sitotroga cerealella). Results are discussed according to progeny output in relation to infestation levels and grain mass. Combinations of 30 weevils and 20 g of grain, and 40 grain moth eggs and 15 g of grain are recommended for use in further resistance screening
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