The effect of relative humidity on incompatibility and fertility in Brassica oleracea L.

Abstract

During 1976, nine self-incompatible Brussels sprout clones and one self-compatible cabbage clone, homozygous for their S incompatibility alleles, were placed in growth rooms at 50, 80 or 95% relative humidity, about ten days before flowering. Self and cross pollinations were performed using pollen ripened in the same environment, or from clones grown in the glasshouse at 65-80% relative humidity. Assessments of pollen-tube penetration indicated that humidity does not affect incompatibility, although pollen ripened at 95% relative humidity showed lower fertility. (Abstract retrieved from CAB Abstracts by CABI’s permission)