The reddish color of corn kernels is the result of genetic changes in the corn itself, and there is no possibility of hybridization with sorghum. Corn is very easy to self-pollinate plants, even if the best varieties planted will be degraded and mutated, that is to say, you are now using red corn as seed, because there may already be yellow corn pollen, the future of the corn planted may be yellow again (of course, there are some individual to retain the red characteristics).

Want to get red corn all year round, in addition to collecting red corn for seed, but also in the corn tassel flowering when the female cob wrapped, not let the non-red corn stamen pollen pollination of red corn, wait until the red corn stamens are ripe, pick the stamens to pollinate the female cob, that will ensure that the offspring have a greater probability of bearing red corn.

Previously, there are glutinous purple corn on the market, and then a few years of cultivation will appear purple and yellow-white kernels mixed corn, the good character is slowly lost, this is the consequences of hybridization.