Cherry tree rootstocks were studied in various sections of the United States. The Oregon State University affiliated study worked to determine what each rootstock had to offer in terms of growth, cherry productivity, and longevity.
Several varieties of walnut rootstocks were tested in a study to find suitable rootstock with the hope of preventing blackline disease. The author provides background information about blackline disease in Oregon and it's impact on growers.
The study was carried out by the author based on a French method of propagating tree peonies using leaf-bud cuttings. Propagation of tree peonies had previously been done generally by grafting as propagation by cutting was considered very difficult to impossible.
The results of a study conducted on using antibiotics to reduce cherry crown gall are discussed by the author. Several different antibiotics and methods of application are tested in the experiments cited in the article.
The effects of Cherry Crown Gall on cherry tree productivity in comparison to disease free cherry tree productivity are researched in this 1952 study. The results of the study indicate trees planted with galls on roots showed reduced vigor and infection with new galls.
A helpful publication for anyone considering growing Douglas-fir Christmas trees or for current growers. Covers cost of production and provides necessary tools for financial management and decision making.