Effects of seed-cuttting dates on yields of various potato varieties

Summary

The effects of dates of seed cutting on the yields and stands of 3 potato varieties were tested in 1955 in Maine and of 8 varieties in 1956 in Maine, Wisconsin, Connecticut, New Hampshire, and South Carolina.

A preliminary test using 3 varieties was conducted in Maine in 1955. Eighty-eight days elapsed between the first and the last date of seed cutting. Differences in yields of seed cut on different dates and the interaction of cutting dates and varieties were not significant.

Similar results were obtained in the 1956 tests which included seed of 8 varieties cut, suberized and stored in Maine prior to planting in 5 States. Differences in yields between dates of seed cutting at monthly intervals were not significant in Maine, Wisconsin, Connecticut, and New Hampshire although 243 days elapsed between the earliest and the latest cutting dates. In South Carolina a difference of 158 days between dates of seed cutting likewise had no effect on yields with the exception of Sebago which produced a lower yield when its seed was freshly cut on February 15.