Ingrown sprouts in potato tubers: Factors accompanying their origin in Ohio

Summary

The factor or conditions necessary for the internal growth of sprouts observed in Ohio appear to be these:

• (a) An agent which injures and destroys the dominance of, the apical meristem of exposed sprouts, without completely inhibiting the expansion of basal portions of such sprouts, and without inhibiting the development of unexposed buds.

• (b) A set of circumstances which allow the full force of the expanding sprout to be exerted on the periderm. This condition may be satisfied by the pressure of another potato against the eye of origin, by the mechanical components of a basipetally expanding cluster of buds, or by one or two less complex means.