The radish (Raphanus sativus L.) is one of the major vegetables of Korea and is consumed as the main ingredient of kimchi. To improve the texture of radish kimchi, herbs, and soup, we attempted to develop a cultivar with a hard texture. Using species native to Jeju Island, we bred ‘Wonkyo10045ho’ which produces short, elliptically shaped roots with a hard texture. Generation progress was made via the self-fertilization method using bud pollination. We selected individuals with good horticultural characteristics from each of five generations grown from 2006 to 2010. Finally, in 2015, the line was named ‘Wonkyo10045ho’, and the granting of plant variety rights (Grant number 6527) was certified in 2017 following an application for the protection of new plant varieties (application number 2015-398). The root characteristics of ‘Wonkyo10045ho,’ include an oval shape, mixed white and green root skin, and a white inner root color. ‘Wonkyo10045ho’ had a sugar content of 4.9 Brix, with excellent sweetness, good taste, and strong pithiness. The average number of seeds per plant obtained via pollination by bees in a small net house was 609.1, suggesting that the strength of its self-incompatibility was not strong and male sterility might be advantageous. Therefore, it is expected that this variety will be useful as a material for improving the competitiveness of domestic farmers and for stable radish exports.

Kenaf (Hibiscus cannabinus L.) is an annual herbaceous crop of the Malvaceae family. Recently, kenaf is being used in many diversified applications such as pulp, animal feed, bioplastics and cellulosic biofuel etc. A new cultivar 'Jangdae' was developed by mutation breeding using irradiated with 300 Gy gamma-rays. Jangdae has a few distinguishable characteristics such as early flowering, high seed yield and palmate leaf, compared to wild type (Jinju). The fresh matter (FM) and dry matter (DM) yield of Jangdae are similar to those of Jinju, their seed yield (833.3 kg/ha) is approximately 4 times higher than that of Jinju. In addition, the FM and DM yield of Jangdae are 40% higher than those of early-maturing cultivar (C11). We performed the nutritive value of four kenaf cultivars (Jangdae, Jinju, C11 and Hongma300) at 100 day after seeding. The crude protein content of Jangdae, Jinju, C11 and Honma300 were 10.5, 11.0, 9.4 and 10.6%, respectively. The crude fiber, neutral detergent fiber and acid detergent fiber contents were no significant difference among the cultivars. Jangdae, which afforded both a high biomass and seed yield in South Korea, may be useful as potential source of feed and industrial materials.