Table 4.

Variation in the Hybrid F2’s

CharacterDescription
LeavesFrom smooth-margined (only seen in the 605B F2) to different degrees of serration. Varying width, length, curvature, midrib
width, epidermal hair density, and anthocyanin pigmentation.
Lethality5 to 10% of the F2’s died at the rosette stage.
FloweringVarying from very early (6 weeks) to very late (several months).
HeightThe F2’s of 605B were shorter than the F2’s of 49-2B and 605A.
Apical dominanceThe apical dominance phenotype of the main inflorescence on the rosette coflorescences varied from strong to none.
Pollen productionModerate to none.
FlowersFlower types varied greatly. Most distinctive were differences in size (ranging among the parental sizes), petal color (white
to darker pink than in C. arenosa), width, and position (radial to zygomorphic). Stamens and pistils varied in length, with
certain individuals exhibiting stamens longer than the pistil or vice versa.
AberrationsApproximately 5% of the F2 plants exhibited altered epidermal cell patterns, fasciation, or homeotic conversions.
VariegationApproximately 5% of the F2 plants exhibited leaf or stem variegation for either photosynthetic or anthocyanin pigments.