Time filter

Source Type

Kim W.,Japan National Institute for Agro - Environmental Sciences | Miyata A.,Japan National Institute for Agro - Environmental Sciences | Ashraf A.,Bangladesh Agricultural University | Maruyama A.,National Agriculture and Food Research Organisation | And 35 more authors.
Journal of Agricultural Meteorology | Year: 2015

To understand how terrestrial ecosystems respond to global climate change, researchers have globally measured the energy, water and carbon dioxide flux densities (F) globally over various types of vegetation by the eddy covariance (EC) method. However, the process of F calculation and the method of quality control and quality assurance (QCQA) are complex and site specific. Moreover, instantly maintaining remote EC flux measurement sites against instrumentation problems and administrative difficulties is laborious. To overcome these issues, particularly those of realtime F monitoring and prompt site management, FluxPro was created. FluxPro consists of three functional systems: 1) a gathering system that transports EC measurements from various sites to the FluxPro management server; 2) a cooking system that computes F and its frictional uncertainty (ε) together with micrometeorological variables (V); and 3) a serving system that presents the results of the gathering and cooking systems as charts to be distributed over the internet in realtime. Consequently, FluxPro could become an appropriate system for realtime-multi-site management, since it not only automatically monitors F with ε and V but also continuously surveils EC sites, including copious information and an email alert system. © 2015, Journal of Agricultural Meteorology. All rights reserved.


Kim H.-H.,National Agrobiodiversity Center | Popova E.,National Agrobiodiversity Center | Popova E.,Korea forest Research Institute | Shin D.-J.,National Park Service | And 6 more authors.
Cryo-Letters | Year: 2012

This paper reviews a 10-year experience in establishing a cryopreserved Allium germplasm collection at the genebank of the National Agrobiodiversity Center, Republic of Korea. A systematic approach to Allium cryopreservation included: 1. revealing the most critical factors that affected regeneration after cryostorage; 2. understanding the mechanisms of cryoprotection by analyzing the thermal behavior of explants and cryoprotectant solutions using DSC and influx/efflux of cryoprotectants using HPLC; 3. assessing genetic stability of regenerants; and 4. revealing the efficiency of cryotherapy. Bulbil primordia, i.e. asexual bulbs formed on unripe inflorescences, proved to be the most suitable material for conservation of bolting varieties due to high post-cryopreservation regrowth and lower microbial infection level, followed by apical shoot apices from single bulbs and cloves. A total of 1,158 accessions of garlic as well as some Allium species have been cryopreserved during 2005-2010 using the droplet-vitrification technique with a mean regeneration percentage of 65.9% after cryostorage. These results open the door for large-scale implementation of cryostorage and for simplifying international exchange for clonal Allium germplasm. © CryoLetters.


Koh Y.J.,Sunchon National University | Kim G.H.,Sunchon National University | Koh H.S.,Sunchon National University | Lee Y.S.,Sunchon National University | And 2 more authors.
Plant Pathology Journal | Year: 2012

Pseudomonas syringae pv. actinidiae strains, the causal agents of bacterial canker on kiwifruit, were isolated from Korea and Italy in 2011. Among 87 isolates, a total of six representative strains, three from Korea and three from Italy, were identified on the basis of biochemical and physiological tests. Identities were confirmed by PCR using P. syringae pv. actinidiae-specific primers PsaF1/R2, which amplified a 280-bp DNA fragment. The strains isolated from Korea in this study displayed BOX-PCR patterns similar to those isolated from Italy but different from those isolated previously in Korea or the pathotype P. syringae pv. actinidiae strain. The effector hopA1 and hopH1 genes, which are known to be present in strains isolated recently from France and Italy, were also present in P. syringae pv. actinidiae strains, SYS1, SYS2 and SYS4, isolated from Korea in this work. However, no amplicons of the expected size were obtained from strains previously isolated from Korea and Japan. In addition, the Korean strains isolated in this work belonged to haplotype I for the cts gene identical to those strains isolated from recent outbreaks in Italy. These results suggest that P. syringae pv. actinidiae strains isolated from Korea and examined in this work are a new type of strain similar to those found from recent outbreaks in Italy. This is the first report on the occurrence of cts haplotype I strains of P. syringae pv. actinidiae affecting kiwifruit plants in Korea. © The Korean Society of Plant Pathology.


Cho Y.-S.,Fruit Research Institute of Jeonnam Agricultural Research and Extension Services | Cho H.-S.,Fruit Research Institute of Jeonnam Agricultural Research and Extension Services | Park M.-Y.,Fruit Research Institute of Jeonnam Agricultural Research and Extension Services | Ma K.-C.,Fruit Research Institute of Jeonnam Agricultural Research and Extension Services | And 3 more authors.
Acta Horticulturae | Year: 2011

The Korean kiwifruit growers have a limited access to 'Hort16A', although the yellow flesh varieties are very appreciated in Korea. As a result a demand for Korean variety of gold kiwifruit was increasing. Fruit research institute of Jeonnam Agricultural Research and Extension Services (JARES) in Korea carried out a breeding program performing crosses between Actinidia chinensis species since mid-1990s. A round and very fruitful accession was selected from a 1997s cross between late 2002 and early 2003. The variety named 'Haegeum' in 2007 was grafted on 'Hayward' and followed in both experimental sites and farm orchards since then. 'Haegeum' flowers in mid-May and reaches maturity (disappearance of green color in fruit flesh) at mid-late October although some differences among cultural conditions and seasons were observed. The fruit average size is between 70 to 100 g and the soluble solid content after ripening is around 14 to 16%. This new selection was released and at the end of 2009 the potential acreages reached 25 ha in Korea.


Son D.,Agricultural Research Center for Climate Change | Seong K.C.,Agricultural Research Center for Climate Change | Kim C.H.,Agricultural Research Center for Climate Change | Kim S.C.,Agricultural Research Center for Climate Change | Lim C.K.,Agricultural Research Center for Climate Change
Acta Horticulturae | Year: 2014

This study was conducted to develop method of producing okra under open field condition and the 10 cultivars of okra for selecting proper cultivar in Jeju, Korea. The okra pod's color is divided into red and green and shape is into round and fiveangled. The tall of plant ranged 170-237 cm and 'Pusa-sawani' is tallest. The pod's length ranged 9.2~11.0 cm and width is 12.7-16.9 mm. The pod's weight ranged 11.6- 14.6 g and 'THA-Kasassert' is heaviest. The number of pods ranged 6.6-18.9 pods/ plant, 'Shimano-beny' is largest number. 'Shimano-beny' and 'Pusa-sawani' cultivar was the highest yield as red and green strains to 229 g/plant and 191 g/plant. The green strains, 'Pusa-sawani', 'THA-Kasassert' and 'Finger-five' were excellent in the pod's color, weight and yield and 'Retdosan' in the red strain were grown best of open field on the temperate area.

Loading Agricultural Research Center for Climate Change collaborators
Loading Agricultural Research Center for Climate Change collaborators