In Bulletin No. 22 appeared the first report of an experiment with the Sand Cherry (Prunus pumila) as a stock for the plum and cherry, and it should be read in connection with the following, which gives the result of the second year’s experience. The stocks were grown in 1892 from seed gathered in northwest Nebraska. In the fall of 1892 the largest of the seedlings were taken up for crown-grafting during the winter, leaving the others for budding. The grafts were planted in the spring of 1893, and the budding was done during July of the same year. The trees of suitable size were taken up late in the fall of 1894, the grafts having had two seasons’ growth, and the buds one season’s growth. All the trees had a very strong root-system, consisting mainly of a dense cluster of long cylindrical roots from immediately beneath the crown, no special tap-root being formed. The color was a fine shade of carmine. This red color is a marked characteristic of the sand cherry root.
Budd, J. L. and Hansen, N. E.
"Second report on the sand cherry as a stock.,"
Bulletin: Vol. 3
, Article 7.
Available at: http://lib.dr.iastate.edu/bulletin/vol3/iss28/7