Spring Growth of Almond Nursery Trees Depends Upon Nitrogen From Both Plant Reserves and Spring Fertilizer Application

Nursery Crops
The purpose of this study was to determine which source of nitrogen (N) (i.e. reserves or spring fertilizer applications) has the greater effect on new growth of almond nursery trees. 'Nonpareil' almond (Prunus dulcis (Mill) D. A. Webb) trees on 'Nemaguard' rootstocks were used in the study.

Root Damage Affects Nitrogen Uptake and Growth of Young Fuji/M.26 Apple Trees

Nursery Crops
Research was conducted with the intent of evaluating the effect of different levels of root damage at planting on nitrogen uptake and growth of bench-grafted young apple (Malus domestica Borkh 'Fuji'/M.26) nursery trees.

Growth and Nutrient Use of Ericaceous Plants Grown in Media Amended with Sphagnum Moss Peat or Coir Dust

Nursery Crops
The objectives of the USDA-ARS affiliated study were to determine whether growth, nutrient use, and storage components of ericaceous plants differ when grown in media amended with varying proportions of sphagnum peat or coir.

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

Bulbs
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

Geophytes
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

Propagation
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.

Nitrogen Absorption, Translocation and Distribution From Urea Applied in Autumn to Leaves of Young Potted Apple (Malus domestica) Trees

Fertilizer
In this study, N-urea was used to assess uptake, translocation and distribution of nitrogen (N) from urea after application in the autumn to leaves of 1-year old bench grafted apple (Malus domestica Borkh) nursery trees.

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

Propagation
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.

Modification of Root IAA Concentrations, Tree Growth, and Survival by Application of Plant Growth Regulating Substances to Container-grown Conifers

Nursery Crops
Field trials were conducted to assess the potential to modify the IAA concentration in roots, root growth responses, and plant survival by root application of plant growth regulators (PGRs) such as IBA, NAA, and ethylene, or alginate, a moisture retention material.

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