New Easter Lily May be Released

Plant breeding and selection
In an effort to find an Easter lily that was more resistant to virus and diseases, an Easter lily breeding program was established in 1960 in Harbor, OR. A cultivar was produced that was promising to the researchers working on the project.

Propagation of Mugo Pine Successful

The standard method for propagation of Mugo pine (Pinus mugo) at the time the article was written was by seed. The challenges involved in propagating by seed were thought to be overcome by using summer softwood cuttings. Recommendations are made based on the rooting studies carried out by the authors.

Effect of Growth Regulators on Cytisus, Genista Tested

Greenhouse Crops
Rooting trials were conducted on Cytisus and Genista softwood cuttings to test the effectiveness of several rooting compounds. The methods and results of the Oregon State University affiliated study are discussed by the author.

Clonal Pear Rootstocks Introduced

In 1960 a project was started to identify pear rootstocks resistant to pear decline, a virus that negatively impacted Oregon's pear orchards. Several viable clonal rootstocks were found and are discussed in regards to hardiness and resistance to other pear issues.

Compatibility of Pear on Hawthorn, Mt. Ash Tested

An Oregon State University affiliated study was conducted on pears to determine the compatibility of pear on hawthorn (Crataegus oxyacantha) and mountain ash (Sorbus aucuparia). The study used several different scions and was designed to find new dwarfing pear stocks.

Program Started to Obtain Virus-Free Rose Stocks

A program was developed after an increasing amount of rose rootstock varieties became infected with viruses that were being transmitted to the cuttings during propagation. Recommendations are given by the author on how to approach the rose virus problem.

Resistant Rootstocks Control Pear Root Aphid

Pear rootstocks were tested in an experiment to discover whether any of the rootstocks were resistant to pear root aphid (Eriosonia pyricola). Several different varieties were tested in the process and the author discusses the results of those tests.

Effect of Herbicides on Nursery Plants Studied

Eight different ornamental species were planted and treated with various herbicides in a two to three year study to determine the herbicides effectiveness at weed control. The details and results of the study are discussed by the Oregon State University affiliated author.

Effect of Flower Buds on Rooting Response-Tested

Nursery Crops
Cultivars of Rhododendron cuttings are compared after experiments were carried out designed to determine if flower buds had an effect on root growth of the cuttings. The author discusses the results of the studies and their implication for propagation of Rhododendron by cutting.

Clonal Propagation of Plums, Cherries Studied

Clonal propagation of plums and cherries was studied in an attempt to determine a standardized method for propagating plum and cherry trees. The recommendations made were supported by research done in Oregon and elsewhere on clonal propagation.