. Bulletin of the Department of Agriculture. Agriculture; Agriculture. 56 BULLETI2T 754^ U. S. DEPARTMEISTT OF AGEICULTURE. It becomes of interest to note that there is one other case where a plant heterozygous for two color factors when pollinated with pollen from a plant heterozygous for one color factor and homozygous for the other has a percentage of white seeds intermediate between 25 and The ears are Nos. 1933 and 1935, Table XXV. The plant that bore these ears also bore ear No. 1934. The ear numbered 1935 had for a male parent the same plant which served as the male parent o
. Bulletin of the Department of Agriculture. Agriculture; Agriculture. 56 BULLETI2T 754^ U. S. DEPARTMEISTT OF AGEICULTURE. It becomes of interest to note that there is one other case where a plant heterozygous for two color factors when pollinated with pollen from a plant heterozygous for one color factor and homozygous for the other has a percentage of white seeds intermediate between 25 and The ears are Nos. 1933 and 1935, Table XXV. The plant that bore these ears also bore ear No. 1934. The ear numbered 1935 had for a male parent the same plant which served as the male parent of No. 1933. Both of these ears had white seeds in excess of the expected. Ear No. 1934 was the result of self-pollinating the female parent of ears Nos. 1933 and 1935. This self-pollinated ear had per cent of its seeds white, demonstrating the plant to be heterozy- gous for two color factors. The male parent of ears Nos. 1933 and 1935 produced an ear the result of self-pollination. No. 1912. This ear had per cent of its. Pec/./8 60 /87^ /87S /87& Pig. 6.—Diagram showing tlie relations of ears Nos. 1860, 1874, 1875, and 1876. seeds white, demonstrating the male parent to be approximating the percentage expected if the plant were heterozygous for one color factor and homozygous for the other. A reciprocal cross was also made between the plant which pro- duced ears Nos. 1933, 1934, and 1935 and the plant which produced ear No. 1912. The ear representing the reciprocal cross of ears Nos. 1933 and 1935 is No. 1911. This latter ear had per cent of its seeds white, the deviation from 25 per cent being only slightly in excess of the probable error. The difference between the reciprocal ears (averaging Nos. 1933 and 1935) is per cent, a difference that would be expected as the result of chance once in six times. The relations of these ears are shown in figure 7 . The seeds from three ears, Nos, 1876, 1933, and 1935, were re- examined and the classification was f
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