Hordeum vulgare endosperm

We now present two examples cultivated barley (Hordeum vulgare) s susceptible to mildew Erisyphe graminis var. hordei), but Hordeum bulbosum is resistant. Hybrids were desired and yet after a species cross the caryopses frequently had no endosperm and the embryo was dead. However, when the embryos were isolated and cultivated in culture media, reproductive hybrids were obtained. 

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