Table I.

Results of grafting scions from different photoperiodic tobacco species onto potato stocks

Tobacco ScionSDLD
Tobacco scion floweringPotato stock tuberizingTobacco scion floweringPotato stock tuberizing

The grafted plants were kept in LD or SD. Mammoth is a short-day species, Xanthi is a day-neutral species, and Sylvestris a long-day species. (Summarized from Ewing, 1995.) +, Tuberization occurred; −, tuberization did not occur.