들깨의 成分改良 硏究 Ⅱ. 들깨 M₂突然變異集團의 脂肪酸組成 變異

Quality improvement in perilla Ⅱ. Variation of fatty acid composition in M₂population

This study was conducted to improve perilla seed oil quality and to select the excellent mutant suitable for various uses. The seeds of three varieties, Okdong, Yeupsil and Suwon 8 were reated with EMS 0.5% and γ-ray 15KR to 40KR. The M₂ selected plants were analyzed on their oil and fatty acids composition. Oil content of 142 selected lines were ranged 34.3%~47.4% with the mean of 41.0%. The range of saturate fatty acid was 3.44%~11.36% with the mean of 7.17% and unsaturate fatty acid was 80.03%~96.87% with the mean of 92.81%. The contents of linolenic acid in M₂ population of Okdong showed higher than those of Yeupsil and Suwon 8 with the effective mutagenetic agent r-ray. The promising line which have 72.58% of linolenic acid was selected from Okdong population. Thus this line could be used as gene source for breeding of high linolenic acid perilla varieties. The oleic acid correlated with linoleic and linolenic acid negatively, saturate fatty acid was highly correlated with unsaturate fatty acid negatively being the correlation coefficient r=-0.4903.