7. Brazilian Stock Treated by Ultra-violet
A Brazilian hybrid corn that flowered normally at Columbia, Missouri, was treated by ultra-violet. Pollen grains were treated and used for pollinating untreated plants. The 600 seeds collected from 3 ears were sown in Brazil, giving good germination (80%). The plants are growing and the mutants in this back-ground, proper for Piracicaba, will be used as testers after their localization in their respective chromosomes.
E. A. Graner