Origins of Susceptibility to Insect Herbivores in High-Yielding Hybrid and Inbred Rice Genotypes
Finbarr G. Horgan,
Maria Liberty P. Almazan,
Carmencita C. Bernal
et al.
Abstract:Several studies have reported higher damage from insect herbivores to hybrid compared to inbred (pure line) rice. We used a collection of 20 hybrid and 12 inbred genotypes from diverse origins to test the hypotheses that hybrid rice susceptibility is due to (a) the hybrid plant type and/or (b) rice phylogeny. We challenged the genotypes with Nilaparvata lugans (BPH), Sogatella furcifera (WBPH) and Scirpophaga incertulas (YSB) in greenhouse and screenhouse bioassays and monitored herbivores in field plots. We u… Show more
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