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Summary Five hundred F3 lines derived from the cross TN1/IR2061-464-6 were examined for the nature of endosperm and resistance to bacterial blight, brown planthopper, and grassy stunt. TN1 has non-glutinous endosperm and is susceptible to bacterial blight, grassy stunt, and brown planthopper. IR2061-464-6 has a glutinous endosperm and is homozygous resistant to bacterial blight, grassy stunt, and brown planthopper. The F3 data fit the 1:2:1 ratio expected for monogenic control of each trait. A two-way classification for all the traits indicated that these four traits are inherited independently. Thus, it should be possible to recombine these four traits in various combinations in rice varieties. 相似文献
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