Nitrogen Mobilization, Nitrogen Uptake and Growth of Cuttings Obtained from Poplar Stock Plants Grown in Different N Regimes and Sprayed with Urea in Autumn

Nursery Crops
Research was conducted on poplar (Populus trichocarpa ×P. deltoides) cuttings to determine whether different weekly nitrogen fertigation regimes altered nitrogen mobilization, nitrogen uptake, and growth of cuttings.

Application of Ectomycorrhizal Fungi in Vegetative Propagation of Conifers

Plant Propagation
A report on the potential use of ectomycorrhizal fungi in vegetative conifer production to increase adventitious shoots and enhance root formation and/or subsequent root branching. The authors specifically discuss in vivo cutting production, in vitro organogenesis and somatic embryogenesis.

Changes in Cutting Composition During Early Stages of Adventitious Rooting of Miniature Rose Altered by Inoculation with Arbuscular Mycorrhizal Fungi

Plant propagation
USDA affiliated study conducted on miniature roses (Rosa L.) to determine if components of arbuscular mycorrhizal fungi inoculum induced changes in adventitious rooting of miniature roses and the time frame in which the rooting changes occurred.

Susceptibility of Pacific Northwest Conifers to Phytophthora Root Rot

Plant Disease
A study was conducted on Phytophthora root rot and the susceptibility of Pacific Northwest conifers. Twelve species of conifer were tested for susceptibility to five species of Phytophthora. Report includes methods, results, conclusions, and recommendations.

Enhanced Rooting of Kinnikinnick Cuttings using Mycorrhizal Fungi in Rooting Substrate

Plant propagation
Hardwood cuttings of kinnikinnick 'Massachusetts' (Arctostaphylos uva-ursi) were inoculated with mycorrhizal fungi to determine if the addition of the fungi during cutting propagation increased rooting or root growth, or altered the time for rooting.

Soil Pasteurization and Mycorrhizal Inoculation Alter Flower Production and Corm Composition of Brodiaea laxa 'Queen Fabiola'

Research was conducted on the wild hyacinth 'Queen Fabiola' (Brodiaea laxa) to determine whether the addition of mycorrhizal inoculum into the growing medium of Brodiaea laxa altered aspects of flower production, corm production, and corm quality.

Evaluation of a Metal Probe pH Meter

Greenhouse Crops
The results of a study conduction on metal probe pH meters. The study was conducted to determine the accuracy of the pH meter for measuring growing media pH. The University of Maryland affiliated author provides a table of the results and also discusses the results of the study.

Control of Liverwort and Moss in Nursery Containers

Study conducted to determine an effective control for liverwort and moss in nursery containers. The topics discussed include the prevention of liverwort and moss establishment, control of established liverwort and moss, and phytotoxicity of tested chemicals.

Herbicide Contaminated Soils May Become a Major Problem

Soil Media
University of Maryland affiliated author discusses the effects of herbicide contaminated soils. Specifically addressed is the issue of herbicides used during row crop production and the later use of those same sites for nursery ornamental and conifer production.

Toxicity of Growing Medium Drench Fungicides

The Ohio State University affiliated author discusses growing medium fungicide drenches and phytotoxicity. The discussion was prompted by reports of growers having issues with stunting and leaf burning after a fungicide drench of growing medium was applied.