SELF-INCOMPATIBILITY AS AN OUTCROSSING MECHANISM IN BIRDSFOOT TREFOIL (LOTUS CORNICULATUS)

Abstract

Studies using pubescence and cyanogenesis as genetic markers indicate that a high proportion of self-seed is set when selfing is followed by pollinations with mixtures of self- and cross-pollen. Also, considerable selective fertilization occurs when pollination is with mixtures of compatible pollen. It is suggested that the incompatibility mechanism may be used for commercial production of "double-cross hybrids" of trefoil.