국내 채종이 가능한 케나프(Hibiscus cannabinus L.) 신품종 ‘장대’
An Improved Kenaf Cultivar ‘Jangdae’ with Seed Harvesting in Korea
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'장대'는 2003년 수집종 ‘진주’ 종자에 300 Gy 감마선을 조사한 후 후대에서 바이오매스 생산성이 양호하고 국내 종자생산이가능한 변이 계통을 선발 육성하였다. ‘장대’의 엽형은 원품종‘진주’가 완전엽인데 반하여 장상엽을 나타낸다. ‘장대’는 개화기가 원품종에 비해 20일 빠르고, 조생종 품종에 비해 30일늦다. ‘장대’의 생체 및 건물 수량은 원품종과 유사하고 조생종보다 40% 증가되었으며, 종자 채종량은 원품종에 비해 약 4배높다. ‘장대’의 사료가치를 분석한 결과 조단백 함량은 ‘장대’, ‘진주’ 및 ‘홍마300’간에 유의적 차이가 없으며, 조섬유, NDF, ADF 함량은 모든 품종에서 유의적 차이가 없었다. 국내 기후에서 대량 채종이 가능하고, 바이오메스가 우수한 품종 ‘장대’는2014년부터 농가에 보급중에 있다.
Abstract
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.
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