Project 2. Improved upland rice gene pools. Report 1994. Activity RU01: silicon efficiency of rice genotypes
1995
Silicon deficiency was identified as a major, previously-unrecognized yield and yield stability constraint for savanna rice over the past several years, and research reported in 1994 focused on the search for genetic variation in Si efficiency which might be useful in raising the level of this element under soil deficiency conditions. Significant variation, on the order of 100 percent, was found in percent tissue Si contents in several plant organs, among 60 genotypes examined. This appears to support the possibility of breeding for higher Si levels. Further confirmatory work is underway.
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