"The Effect of the rootstocks on nine years' growth and yield of four apple varieties. "; "Sudds, R. H.", "Marth, P. C."; "Fruit trees--Rootstocks.", "Apples--Varieties.", "Apples."; "Sudds, R. H.", "Marth, P. C."; "1943"; "Journal article reprint from: Proceedings of the American Society for Horticultural Science, v.42 (1943). "; ""; "P16922"; "pec"; "Apples--Varieties.", "Fruit trees--Rootstocks.", "Apples."; "14256"; .