Boseogchal is a newjaponica rice cultivar developed from the three-way cross ofHwayoung, Tamjin and Sinseonchalat Honam Agricultural Research Institute (HARI), RDA, in 2004. It is a waxy rice with about 117 days of growth duration fromtransplanting to har

Hanmaeum is a new super-yielding japonica rice cultivar developed from a three-way cross of Mi1yang165,YR16365Acp13 and Iksan438 at Honam Agricultural Research Institute (HARI), RDA, in 2004. This cultivar has about 119 daysgrowth duration from transplant

Research Institute (HARI), NTCS, RDA, in 2004. This cultivar has a short grain shape and about 123 days growth duration from trans-planting to harvesting under the reclaimed saline area of the south-western and the mid-western coastal plain and Honam plai

Unkwang is a newjaponica rice cultivar developed from the cross between Sobibyeo (Iksan435), high yield and coldtolerance cultivar and Cheolweon 54, early maturity cultivar at Honam Agricultural Reaserch Institute (HARI), NICS, RDA, m2004. This cultivar h

Genetic study on amy lose content and alkali digestion (AD) Pattern of rice grain was conducted using Fi, BCiFi and Fzpopulations of a reciprocal cross between a high-amylose mutant rice cultivar, Goami 2 and its progenitor variety, Ilpumbyeo. Fiseeds of

“Jokyoung”, a new bread making wheat cultivar, was developed from the cross between “Seri 82”, a hard white wheat from CIMMYT, Mexico and “Keumkang”, a hard white wheat with high milling rate and early maturing from Korea by National Institute of Crop Sci

Activity of senescence-induced antioxidant enzymes in the detached rice seedlings (Oryza sativa L. cv. Dongjin) was examined. The levels of ~textrmH2~textrmO2 content and peroxidase (POD) activity were gradually increased during leaf senescence, whereas catalase activity was decreased. The activity of superoxide dismutase (SOD) was increased, and ascorbate peroxidase (APX) and glutathione reductase (GR) were slightly increased until 3d and 4d of dark induced-senescence, and thereafter were decreased. The activation of all SOD isoforms showed a significant decrease after 6d and 7d. After 4d to 7d of dark senescence, there was a significant effect in enhancing the activity of APX-12 and -13 isoforms as compared with light, despite similar levels in total APX activity. GR-8 and -10 isoforms were more effective in leaf senescence at 4d to 7d, particularly with respect to dark-induced senescence. These results suggest that the metabolism of active oxygen species such as ~textrmH2~textrmO2 is dependent on various functionally interrelated antioxidant enzymes such as catalase, peroxidase, SOD, APX and GR.

‘Jopummil’ was bred from the cross between SW88416-B-0 with the early maturity and short culm, and the F1 hybrid between OR8500494P and “Bezostaya” in 1990. It was examined as ‘Suwon 284’ in the regional yield trials(RYT) from 1999 to 2001. It was a near-

Sindongjinbyeo is a new japonica rice cultivar developed from a cross between Hwayeongbyeo and YR13604Acp22 line by the rice breeding team of National Honam Agricultural Experiment Station (NHAES), RDA, in 1999. This cultivar has a large grain and about 1

Manpung is a new japonica rice cultivar developed from three-way cross between Nakdongbyeo, Iri390 and Milyang111 by the rice breeding team of National Honam Agricultural Experiment Station (NHAES), RDA in 2000. This cultivar has a short grain shape and a