They Raise Them DIfferently Up North: Different Production Practices in Austrailian Growing Areas Affect Mycorrhizae

Report on a survey conducted with the purpose of collecting information on a number of production practices that had been shown in the past to affect mycorrhizal infection and that might have the same effects in Australian blueberry farms.

Phenolic Composistion of Basil Plants is Differentially Altered by Plant Nutrient Status and Inoculation with Mycorrhizal Fungi

Four cultivars of basil were inoculated or not with the arbuscular mycorrhizal fungus (AMF), Rhizophagus (formerly Glomus) intraradices (Schenck & Smith) Walker & Schubler and grown with a fertilizer to access whether 1) P availability and inoculation with AMF influences the phenolic composition of basil; and 2) treatment effects on phenolic composition are related to plant nutrient status.

Who's on Your Roots? A Look at Mycorrhizal Fungi in Austrailian Blueberry Fields

Nursery Crops
Researchers collected samples of blueberry roots from fields in Australia in an effort to (1) identify the fungi present in roots of field-grown blueberry plants, (2) determine whether the fungi formed mycorrhizae with blueberry plants, and (3) establish whether the fungi preferred specific sources of nitrogen (N) for growth.

Spraying Leaves of Pear Nursery Trees with Urea and Copper Ethylenediaminetetraacetic Acid Alters Tree Nitrogen Concentration Without Influencing Tree Susceptibility to Phytophthora syringae

The specific objectives of the study were to determine whether susceptibility of field-grown pear trees to P. syringae is related to N concentration in stems and is altered by spraying trees with urea or the defoliant CuEDTA at different times in the autumn before and after inoculation with the pathogen.

Cold Tolerance of Container-grown Green Ash Trees is Influenced by Nitrogen Fertilizer Type

Nursery Crops
Using green ash (Fraxinus pennsylvanica) trees as a model for fast-growing shade trees, the objective of this study was to determine whether N application rate and fertilizer type differentially influence cold tolerance of green ash.

Nitrogen Availability Alters Mineral Nutrient Uptake and Demand in Container-grown Deciduous and Evergreen Rhododendron

Research was conducted using evergreen and deciduous Rhododendron cultivars. The objectives of this research were to determine whether N-availability in the growing medium alters (A) the rate of uptake of other nutrients; (B) allocation of other nutrients between different plant structures; and (C) plant demand for other nutrients as reflected in ratios of N to other nutrients (N-ratios).

A Survey of Vaccinium Cultural Practices in Australia Emphasizing Implications for Mycorrhizal Infection

A report based on a survey conducted in Australia of 171 blueberry growers in four Australian states to collect detailed information on cultural practices that have been shown to effect the infection of commercial plantings with ericoid mycorrhizal fungi (EMF).

Rate of Nitrogen Application During the Growing Season and Spraying Plants with Urea in the Autumn Alters Uptake with Urea in the Autumn Alters Uptake of Other Nutrients by Deciduous and Evergreen Container-grown Rhododendron Cultivars

Deciduous and evergreen cultivars of container-grown Rhododendron were used to determine whether spraying plants with urea in the fall altered 1) uptake of nutrients other than N in the year of application and the following growing season; and 2) allocation of nutrients other than N in the year of application and the following growing season.

Rate of Nitrogen Fertication During Vegetative Growth and Spray Applications of Urea in the Fall Alters Growth and Flowering of Florists' Hydrangeas

The purpose of this study was to determine: 1) how rate of N application during the vegetative stage of production influences plant growth; 2) whether plant N content before cold storage influences plant growth and flower development during forcing; and 3) whether urea sprays in the fall increase N storage before cold storage and plant growth and flower development during forcing.

Rate of Nitrogen Application During the Growing Season Alters the Response of Container-Grown Rhododendron and Azalea to Foliar Application of Urea in the Autumn

Nursery Crops
Using deciduous and evergreen cultivars of container-grown Rhododendron, the objectives of this study were to determine: (i) whether N application rate during the growing season influenced plant response to foliar urea application in the Autumn; and (ii) whether plant N status in the Winter influenced plant reliance on fertilizer for growth the following Spring.