A population ofrecombinant inbred lines derived from a cross between Ilpumbyeo, a blast-susceptibleyopowca cultivarofhigh eating-quality and high yield potential, and GL33, a blast-resistance/apowca weedy rice was used to identifv QTLs affect-ing importan

This experiment was conducted to investigate the variation of nitrogen(N) uptake efficiency and their relationships withciency and partitioning parameters as physiological N use efficiency [PNUE], agronomic N use efficiency [ANUE], apparentrecovery [AR],

A recombinant inbred lines (RILs) consisting of 231 lines, derived from a japonica (Suweon365) and a japonica (Chu-cheongbyeo) rice, was used to investigate the genetic factors affecting cooking and eating quality of rice. Alkali digestion valueloci (QTLs

This study was caried out to identify varietal diferences in poping characteristics of brown and polished rice and toelucidate the morphological and physicochemical properties related to poping quality. Nineteen rice varieties including japonica,argevarie

To ensure the durability of resistance to blast disease in high-quality japonica rice a long-term rice breeding project to develop a few blast-resistant multiline cultivars was carried out from 1987 to 1999. Seven resistance donors were selected based on

During the period of every summer to early autumn seasons, ships have been wrecked or grounded from effect of a typhoon in the water areas around Korean Peninsula Typhoon Rusa killed more than 100 people in September 2002. Super Typhoon Maemi passed southeast of South Korea in September 12-13, 2003, with a strong gale blowing at a record 60 m/s and caused much ship groundings, collisions and sinkings over 3000 in dockyards, harbors and places of refuge. These are things that could have been prevented had there merely been prior warning. This study outlines the occurrence characteristics of maritime accidents caused by a typhoon in South Korea for the period from 1962 to 2002. The distribution of the accident records is also compared with the trajectories, winds, central pressures of typhoons, passed during the 1990-2003. It is shown that attack frequency of typhoon and number of marine accidents is the highest in August and the marine accidents due to typhoon have a close relation to the distribution of accumulated wind and pressure fields.

The genetic basis underlying heterosis for agronomic traits of rice under cold water irrigated field condition was investigated in the 143 RILs and 286 BC₁F₁ lines from the cross between a cold-susceptible variety, Milyang23 and a co