"Seolhyangchalbyeo", an aromatic and glutinous rice cultivar, was developed by the rice breeding team of National Crop Experiment Station, RDA during the period from 1991 to 1999 and released in 2000. The cultivar is derived from a cross between Miyagaori

“Undoobyeo” is a japonica rice cultivar (Oryza sativa L.) developed by the rice breeding team in the National Crop Experiment Station, RDA, Suwon, Korea in 1998. Undoobyeo was derived from a cross between Odaebyeo and Jinbu 13 made during 1989/'90 winter

Kwanganbyeo is a japonica rice variety developed from the cross between Namyang 7 and SR14779-HB234-31, anelite line derived from the cross between Cheonmabyeo and Aichi 37 at the National Crop Experiment Station, RDA, and washi-tecture and light-dark gre

Junganbyeo is a japonica rice variety derived from a cross of Namyang 72* Hapcheon 1 by the rice breeding team ofNational Crop Experiment Station, RDA, in 1999 and was released in 2000. This is a medium-early variety with growth durationtdark gren leaves.

Andabyeo, a new Tongil-type rice (Oriza sativa L.) cultivar, is developed by the rice breeding team of National Cropbetween SR11532-4 and SR14502F2. This cultivar has about 115 days of growth duration from seeding to heading and is semi-dwarf (culm length

Foehn damage on rice plant is one of the important abiotic stresses in eastern costal area of Korea. To know the relationship between foehn impact and morphological traits of rice, wind tunnel method was used with 106 rice cultivars. Less influencing traits on foehn were short panicle, large panicle number per hill, thin panicle neck, and the flag leaf of narrow, short and thick. Leaf pubescence reduced the impact on foehn. 'Naepungbyeo' belong-ed to foehn tolerant varietal group, while 'Ansanbyeo' belonged to the opposite group. Three levels of root cutting treatment with two rice cultivars were conducted to evaluate the foehn impact using wind tunnel. The severity of wind damages was followed the sigmoidal curve duration of wind tunnel treatment were prolonged. Different responses of root cutting to wind tunnel treatment could be used to evaluate the severity of the foehn impact. 'Naepungbyeo' was one of the less implausible cultivars on foehn. 'Nae-pungbyeo' showed tolerant response to wind under 21% root removing treat-ment (20㎝ root cutting), however 'Ansanbyeo' was wilted under the same treatment. In case of 35 % root removing treatment(10㎝ root cutting), both rice cultivars failed to alive against foehn wind.

This study was carried out to develop a prom ising japonica rice variety resistant to brown planthopper(Bph) through marker-assisted selection(MAS) and backcross breeding methods. 'Milyang 64' which is known as resistant japonica variety to Bph used as a

This japonica cultivar was developed from a cross between two F₁ hybrids of YR13168 (Milyang 95/Iri390) and YR13198 (Milyang101/Iri390) using anther culture. It has about 104 days of growing duration from seeding to heading and relatively short

Areumbyeo', a second generation Tongil-type rice variety (Oryza sativa L.), has been developed at National Yeongnam Agricultural Experiment Station (NYAES) from 1983 to 1999 and released in 2000. A single cross between YR3299-34-2-2 and Suweon 318 (was co

Nonghobyeo', was derived from a mutant of Milyang 95, by pure line selection method, which was developed from the single cross between Chukei 1016 and Milyang 79, by the rice breeding team of National Yeongnam Agricultural Experiment Station (NYAES) in 19

Mananbyeo was developed from a three way cross ilyang110/Yeongdeog7//Milyang110 in 1999. It has short growing duration about 71 days from seeding to heading and short culm length of 75 cm. It has almost similar number of panicles per hill , spikelets per

Sujinbyeo', a new mid-late maturing japonica rice variety (Oryza sativa L.), was developed by the rice breeding team of National Yeongnam Agricultural Experiment Station (NYAES) in 1999 and released in 2000. This variety originated from a three way cross