Fig. 4From: Evaluation and breeding application of six brown planthopper resistance genes in rice maintainer line Jin 23BPhotograph of resistance level to BPH of improved Jin 23B with resistance gene Bph3, Bph14, Bph15, Bph18, Bph20, Bph21 and Bph14/Bph15 at the seedling stage (the 7Â days after infested with BPH). PTB33 (carrying Bph3) is a resistance control and TN1 is a susceptible controlBack to article page