Navigation Links
New research contains solutions to common pear disease
Date:12/28/2010

CORVALLIS, OR Diseases caused by a species of fungus called Phytophthora syringae are responsible for significant economic losses on a wide range of plants, including pear. In the Pacific Northwest region of the United States, disease occurs during the winter in nursery stock, especially on trees that are harvested and stored in coolers or in outdoor sawdust beds. Recent field observations by growers suggest that increased nitrogen content in nursery trees resulting from foliar sprays with urea in the autumn increases tree susceptibility to infection by Phytophthora syringae. The results of new research suggest the relationship between tree susceptibility to P. syringae and tree nitrogen concentration may be specific to the form of nitrogen, delivery method, or timing of nitrogen applications.

Researchers from Oregon State University's Department of Horticulture and the USDA-Agricultural Research Service published a study in HortTechnology that contains new answers for nursery operators. The experiments investigated the effects of soil nitrogen (N) availability and spraying pear trees with combinations of urea, chelated copper ethylenediaminetetraacetic acid (CuEDTA), and phosphonate-containing fungicides on stem N concentration and susceptibility to infection by P. syringae.

Experimental results showed that spraying trees with urea in the autumn increased concentrations of nitrogen and amino acids in stems and had no significant effect on tree susceptibility when stems were inoculated with P. syringae before or after urea sprays. Spraying with CuEDTA decreased stem nitrogen concentrations and had no significant influence on tree susceptibility to P. syringae when stems were inoculated before or after CuEDTA sprays, while spraying with fungicides containing fosetyl-aluminum in October or November decreased tree susceptibility to P. syringae. The effects of fungicides containing fosetyl-a
'/>"/>

Contact: Michael W. Neff
mwneff@ashs.org
703-836-4606
American Society for Horticultural Science
Source:Eurekalert

Page: 1 2

Related biology news :

1. Standardized protocols would greatly enhance clinical and research potential of BTMs
2. UK researchers contribute to sequencing strawberry genome
3. Scripps Research scientist uncovers switch controlling protein production
4. An important breakthrough by IRCM researchers in hematopoiesis and the development of B cells
5. Carnegie Mellon researchers discover mechanism for signaling receptor recycling
6. Research shows positive results with high pressure technology for certain dairy products
7. Researchers discover genetic predisposition for breast, kidney cancers
8. Polar bears no longer on thin ice: researchers say polar bears could face brighter future
9. ONR-funded researchers among Popular Science magazines Brilliant 10
10. BUSM researchers uncover cellular mechanism responsible for chronic inflammation, Type 2 diabetes
11. Research shows that environmental factors limit species diversity
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/13/2015)... ACT Genomics Co., Ltd., a cancer ... cancer genomic information into precision diagnosis and personalized ... US$ 8 million in the its first private funding ... Taiwan , ACT Genomics has developed comprehensive ... to implement next generation sequencing (NGS) and multiplex ...
(Date:2/10/2015)...  Alere Inc. (NYSE: ALR), a global leader ... the quarter ended December 31, 2014. ... Alere said, "We made substantial progress in the ... leader in rapid diagnostics and delivering against our ... in early January enabled us to substantially reduce ...
(Date:2/5/2015)... , Jan. 26, 2015   Epic Sciences , ... cancer, today announced that Murali Prahalad , Ph.D., president ... Medicine World Conference (PMWC) 2015: Silicon Valley, which is ... Mountain View, Calif. on January 26-28, 2015. ... Come of Age as Biomarkers." Last year, Epic Sciences was ...
Breaking Biology News(10 mins):ACT Genomics Raises $8 Million in its First Private Funding Round 2Alere Inc. Announces Fourth Quarter 2014 Results 2Alere Inc. Announces Fourth Quarter 2014 Results 3Alere Inc. Announces Fourth Quarter 2014 Results 4Alere Inc. Announces Fourth Quarter 2014 Results 5Alere Inc. Announces Fourth Quarter 2014 Results 6Alere Inc. Announces Fourth Quarter 2014 Results 7Alere Inc. Announces Fourth Quarter 2014 Results 8Alere Inc. Announces Fourth Quarter 2014 Results 9Alere Inc. Announces Fourth Quarter 2014 Results 10Alere Inc. Announces Fourth Quarter 2014 Results 11Alere Inc. Announces Fourth Quarter 2014 Results 12Alere Inc. Announces Fourth Quarter 2014 Results 13Alere Inc. Announces Fourth Quarter 2014 Results 14Alere Inc. Announces Fourth Quarter 2014 Results 15Alere Inc. Announces Fourth Quarter 2014 Results 16Alere Inc. Announces Fourth Quarter 2014 Results 17Alere Inc. Announces Fourth Quarter 2014 Results 18Alere Inc. Announces Fourth Quarter 2014 Results 19Alere Inc. Announces Fourth Quarter 2014 Results 20Alere Inc. Announces Fourth Quarter 2014 Results 21Alere Inc. Announces Fourth Quarter 2014 Results 22Alere Inc. Announces Fourth Quarter 2014 Results 23Alere Inc. Announces Fourth Quarter 2014 Results 24Alere Inc. Announces Fourth Quarter 2014 Results 25Alere Inc. Announces Fourth Quarter 2014 Results 26Alere Inc. Announces Fourth Quarter 2014 Results 27Alere Inc. Announces Fourth Quarter 2014 Results 28Alere Inc. Announces Fourth Quarter 2014 Results 29Alere Inc. Announces Fourth Quarter 2014 Results 30Alere Inc. Announces Fourth Quarter 2014 Results 31Alere Inc. Announces Fourth Quarter 2014 Results 32Alere Inc. Announces Fourth Quarter 2014 Results 33Alere Inc. Announces Fourth Quarter 2014 Results 34Alere Inc. Announces Fourth Quarter 2014 Results 35
... humans to plants to the lowliest bacterium use molecules ... an organism,s development, and still others are used to ... California Institute of Technology have now found a rare ... Caenorhabditis elegans that serves a dual purpose, working ...
... L-1 Identity,Solutions, Inc., (NYSE: ID ), ... hold a supplemental conference call for Q&A with ... ended June 30,2008 financial results at 2:00 p.m. ... the initial 11:00 a.m. (ET) call,today were unable ...
... healthy, nutritious plant. The research paper, published with ... Carolina, appeared in the early online edition of the ... week of July 21. "There,s a lot of attention ... principal investigator on the study and one of the authors ...
Cached Biology News:Caltech researchers find dual-use sexual attraction and population-control chemicals in nematodes 2Caltech researchers find dual-use sexual attraction and population-control chemicals in nematodes 3L-1 Identity Solutions to Hold Supplemental Second Quarter 2008 Financial Results Q&A Conference Call at 2:00p.m. (ET) Today 2Dartmouth researchers identify an important gene for a healthy, nutritious plant 2
(Date:3/3/2015)... astronaut Scott Kelly , who is making final preparations ... and working on the International Space Station, will be available ... Monday, March 9. Kelly will participate from ... of his training. The interviews will be preceded at 5 ... training and previous spaceflights. To schedule an interview, ...
(Date:3/3/2015)... DUBLIN , Mar. 03, 2015 Research and ... addition of the "Gene Therapy Market, 2015 - ... The "Gene Therapy Market, 2015-2025" report provides an extensive ... lot of research has been carried out in this ... five approved therapies (four available in Asian markets; one ...
(Date:3/3/2015)... , March 3, 2015 Adaptive Biotechnologies announced ... is joining its Board of Director as Chair of ... at Zillow Group, Chad oversees all finance, treasury and ... the company,s core finance, treasury and accounting functions, and ... nine acquisitions. In 2013, he was named Puget Sound ...
(Date:3/3/2015)... , March 3, 2015  Regenicin, Inc. (OTC ... specializing in the development of and commercialization of regenerative ... and organs, announced today that it has received the ... Amarantus Bioscience Holdings, Inc. (OTC Bulletin Board: ... Agreement, Amarantus made the final payments due to Regenicin ...
Breaking Biology Technology:NASA Astronaut Scott Kelly Available for Interviews before One-Year Space Station Mission 2Global Gene Therapy Market Report 2015-2025 - Extensive Study on the Marketed and Pipeline Gene Therapies 2Global Gene Therapy Market Report 2015-2025 - Extensive Study on the Marketed and Pipeline Gene Therapies 3Global Gene Therapy Market Report 2015-2025 - Extensive Study on the Marketed and Pipeline Gene Therapies 4Global Gene Therapy Market Report 2015-2025 - Extensive Study on the Marketed and Pipeline Gene Therapies 5Global Gene Therapy Market Report 2015-2025 - Extensive Study on the Marketed and Pipeline Gene Therapies 6Global Gene Therapy Market Report 2015-2025 - Extensive Study on the Marketed and Pipeline Gene Therapies 7Adaptive Biotechnologies adds Chad Cohen, Zillow Group CFO, to Board of Directors 2Regenicin (RGIN) Receives $2.3 Million in Final Payment from Amarantus 2Regenicin (RGIN) Receives $2.3 Million in Final Payment from Amarantus 3
... Relationship increases access to testing for sleep-related illnesses , ... a California-based provider of in-home sleep testing and Continuous ... with Aetna, one of the nation,s largest healthcare benefit ... will now be able to serve more patients with ...
... Six prestigious members of the National Institutes of Health ... ), the nation,s leading online jobs board and careers ... NIH has the highest number of post-doctoral professionals at ... organizations that have joined include the National Institute of ...
... Wound Care Innovations, LLC, a subsidiary of Wound ... reached an agreement in principle to acquire BioPharma Management ... platform of proprietary and patented technologies for topical pain ... structured as a share exchange pursuant to which BioPharma ...
Cached Biology Technology:SleepQuest Signs National Contract With Aetna 2National Institutes of Health Join Nation's Leading Postgrad Bio Jobs Board 2National Institutes of Health Join Nation's Leading Postgrad Bio Jobs Board 3Wound Management Technologies, Inc. Announced Today That It Has Reached an Agreement in Principal to Acquire BioPharma Management Technologies, Inc. 2
... provides the firm pressure necessary to ... tubes or plates. The multifunctional tool ... firmly holds thin-wall 0.5 ml tubes ... or closing. A side slot allows ...
... slides were designed to study protein expression patterns ... Tissue slices from three different species are ... be treated as a single histological slide for ... hybridization. This format allows a rapid analysis ...
... and endothelial cells-directed transfection reagent ... peptide-conjugated polyethylenimine which allows targeted ... and endothelial cells. Integrins are ... and cell-matrix adhesion processes. Many ...
... used on Macintosh operating systems to ... DNA sequence up to 3,200 bases, ... primers and GC clamps for mutation ... (DGGE), constant denaturing gel electrophoresis (CDGE), ...
Biology Products: