Pale yellow endosperm color genes
--Charles R. Burnham

Some yellow endosperm cultivars have a pale yellow gene also. This can be tested by crossing with a pure white endosperm stock (y y) and selfing the F1s. At one time I had two pale yellow stocks, which, when crossed, gave deep yellow seeds. In F2 the ratio was 9 deep yellow: 6 pale: 1 white. I do not have those stocks. There were reports in the Newsletter on genes for yellow and pale yellow endosperm. If those stocks are in the Coop they might be tested in crosses for the above behavior. One pale yellow was associated with viviparous (vp) seeds. A cross on y y showed the heterozygous vp plants were Y Y.
Please Note: Notes submitted to the Maize Genetics Cooperation Newsletter may be cited only with consent of the authors

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