Soil Pasteurization and Inoculation with Glomus intraradices Alters Flower Production and Bulb Composition of Zephyranthes spp.

The objective of this study was the determine whether addition of vesicular-arbuscular mycorrhizal fungi (VAMF) inoculum into the growing medium of different Zephyranthes spp. alters aspect of flower production, bulb production, and bulb quality.

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.

Soil Temperature and Plant Growth Stage Influence Nitrogen Uptake and Amino Acid Concentration of Apple During Early Spring Growth

Nursery Crops
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.

Cultivar Specific Effects of Mycorrhizal Fungi on the Rooting of Miniature Rose Cuttings

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.

Changes in Root IAA Content and Growth of Bareroot Conifers with Plant Growth Regulating Substances at Planting

Nursery Crops
An experiment was conducted to determine whether application of plant growth regulators (PGRs) or moisture retention materials could modify IAA concentrations in roots, new root growth, and above ground plant growth. Douglas-fir, Englemann spruce, western larch, and lodgepole pine species were used.

A Systematic Approach to Diagnosing Plant Damage

A comprehensive guide for determining the difference between nonliving and living causes of plant damage. The authors also provide a list of available references for identifing plant problems, references topics vary from general plant problem diagnosis to crop specific.

Ebb and Flow From an Engineer's Viewpoint

Agricultural engineering specialist affiliated with the University of Connecticut discusses the benefits of using an ebb and flow irrigation system in a greenhouse environment. Examples of crops successfully grown using the ebb and flow system are provided.

Capillary Beds

Nursery Crops
A discussion about capillary beds and also a how to guide on the construction of the beds for nursery production. Topics addressed include the construction of capillary beds, costs (labor, equipment, materials), root growth and development, leaf scorch, and pathogens.

New Pesticide Rules to Protect Ground Water Adopted by Washington State Department of Agriculture

An overview of the pesticide rules adopted by the Washington State Department of Agriculture in 1989. The new rules restricted pesticides containing one of more of the 18 active ingredients identified as having potential to contaminate ground water.