GENETIC S O F RYE (SECALE CEREALE L.) II. XENIA

Abstract

Numerous experiments have been carried out in the hybridization of various forms of rye differing in their grain colour (green, yellow) or white) inherited as xenia. The development of these colours is controlled bv two pairs of independently inherited factors interacting as complementary genes (9 green : 3 yellow: 4 white). White grain colour results in the absence of authocyanin in the seedlings (green emerged seedlings) and in tlie other parts of the plant (pleiotropy).