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감마선 처리 땅콩 돌연변이체 수량 및 품질 특성

Yield and Quality Characteristics of Peanut Mutants Induced by Gamma Ray Young-Keun Cheong1*, Hong-Soo Doo1, Ki-Hun Park2, Jong-Chul Ko1, Jeom-Ho Ryu3, and Soo-Dong

김수동|류점호|박기훈|고종철|두홍수|정영근
한국육종학회 (The Korean Society of Breeding Science)|2004.12|한국육종학회지 (KOREAN JOURNAL OF BREEDING SCIENCE)|제36권 제5호|pp. 260-265

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주제분류농학

초록

땅콩의 종자에 300 Gy의 감마선(Co-60)을 조사하여 M2 세대에서 돌연변이체를 선발하고 M3 세대에서 선발된 BTM3-9와 BTM5-19 계통 후대(M8 세대)의 수량성과 품질특성을 조사하였다. 1. BTM3-9와 BTM5-19의 절위별 착협율은 자엽절 16~32%, 1절 32~35%로 하위절에서 높았다. 2. BTM3-9와 BTM5-19의 성숙협 비율은 개화 후 80일에 원품종인 신남광땅콩의 68%에 비하여 각각 82%와 83%로 14~15% 포인트 높았다. 3. 종실의 변이계수(CV)는 4.8~5.0%로 낮아 종실균일도가 높았다. 4. 개화기와 100립중과의 상관은 원품종인 신남광땅콩은 부의 상관이었으나 BTM3-9는 정의 상관이었다. 5. 돌연변이 계통의 주당 협수는 29개, 협실비율은 71%이었으며, 100립중은 102~108 g으로 원품종에 비하여 5~11 g이 무거웠다. 6. 수량성은 원품종인 신남광땅콩의 3,193 kg/ha에 비하여 BTM3-9가 3,363 kg/ha, BTM5-19는 3,345 kg/ha으로 각각 5% 증수되었다. 7. 기름함량은 BTM3-9가 56%, BTM5-19는 54%로써 각각 5% 포인트와 3% 포인트 높았고, 단백질 함량은 BTM3-9는 2.8% 포인트 높았으나, BTM5-19는 1.3% 포인트 낮았다. 양질 지방산 함량은 각각 1.4%와 1.0% 포인트 높았으며, O/L비율은 0.5~0.8 포인트 높았다.

Abstract

Peanut (Arachis hypogaea L.) mutants were induced by the gamma ray with 300Gy of Co-60 irradiation using the seed of cultivar Shinnamkwang. BTM3-9 and BTM5-19 lines were selected in M3 generation and then segregated. In M8 generation, the yield potential and qualitative characteristics were investigated. BTM3-9 and BTM5-19 set many pods on the lower nodes as it was 16~32% on cotyledon node and 32~35% on the first node. Pod setting ratio at 80 days after flowering was 14~18% point higher than Shinnamkwang (68%). Seed uniformities were high because coefficient of variations (CV) were 4.8~5.0 point lower than those of Shinnamkwang. There were negative correlation coefficients between flowering date and 100-seed weight on Shinnamkwang but positive on BTM3-9. In the result of yield test conducted for 4 years, two mutant lines produced 29 pods per plant and shelling ratio was about 71%. The 100-seed weight of two mutant lines was 5~11g heavier than those of Shinnamkwang. Yields were 3,363 and 3,345kg/ha in BTM3-5 and BTM5-19 line, respectively, which were 5% more than that of Shinnamkwang (3,193 kg/ha). BTM3-9 and BTM5-19 contained 56% and 54% of lipid, respectively which were 3~5% point more lipid than Shinnamkwang (51%). BTM3-9 contained 2.8% point more in protein but BTM5-19 contained about 1.3% point less than Shinnamkwang (26.8%). Two mutant lines contained 1.0~1.4% point more high-grade fatty acid such a oleic acid than Shinnamkwang (81.4%) and oleic/linoleic ratio was 0.5~0.8% point higher than ones.

참고문헌 (21)

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