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Greenhouse Production Information at Oregon State University
Oregon State University has a dynamic research and extension program for the greenhouse production industry in Oregon.
Associations and Government Agencies
Production and Management
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.
Experiments were performed to determine if 1) O. sulcatus larval survival and development increased with a standard or improved diet and 2) whether O. sulcatus eggs could be stored for up to 4 weeks at 4 °C without significant reductions in larval survival and development.
Includes identification and management information for eight weeds commonly found in Oregon container nurseries. Color photos and descriptions of weeds throughout their life cycle aid in identification. Presents control strategies for each weed.
Changes in Cutting Composition During Early Stages of Adventitious Rooting of Miniature Rose Altered by Inoculation with Arbuscular Mycorrhizal Fungi
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.
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.
Inoculation with Vesicular-Arbuscular Mycorrhizal Fungi and Rhizobacteria Alters Nutrient Allocation and Flowering of Harlequin Flower
The objectives of the study were to 1) determine whether addition of AMF inoculum into the growing medium of harlequin flower alters aspects of flower production, bulb production, and bulb quality, and 2) assess whether other rhizosphere organisms present in the AMF inoculum play a role in plant response to inoculation.
Inoculation with Arbuscular Mycorrhizal Fungi Alters Nutrient Allocation and Flowering of Freesia x hybrida
Study conducted to (1) determine whether addition of AMF inoculum into the growing medium of different Freesia x hybrida cultivars alters flower production, corm production, and corm chemical composition, and (2) to assess whether the other rhizosphere organisms present in the AMF inoculum play a role in plant response to inoculum.
Mycorrhizal Fungi in Rooting Substrate Influences the Quantity and Quality of Roots on Stem Cuttings of Hick’s Yew
A report on research conducted to determine 1) whether the addition of vesicular–arbuscular mycorrhizal fungi (VAMF) inoculum into the rooting substrate during cutting propagation increases rooting of hick’s yew and 2) how the quantity of VAMF inoculum influences the rooting of hick’s yew under nursery production conditions.
The objective of the study was to determine whether addition of vesticular-arbuscular mycorrhizal fungi (VAMF) inoculum into the rooting medium during cutting propagation would increase the quantity of rooting and the quality of rooted cuttings for different cultivars of miniature roses.
Soil Temperature and Plant Growth Stage Influence Nitrogen Uptake and Amino Acid Concentration of Apple During Early Spring Growth
This study focuses on early season changes in nitrogen (N) uptake and amino acid distribution at different root zone temperatures to test whether (1) temperature effects on N uptake are influenced by plant growth stage, and (2) changes in amino acid distribution are related to N uptake.