油菜粕 飼料化를 위한 有害成分(Glucosinolate) 改良育種에 관한 硏究 第Ⅰ報 導入地域에 따른 油菜品種의 Glucosinolate 含量差異

Breeding for Improvement of Glucosinolate content in Feed Utilizability of Rapeseed Meal Ⅰ. Glucosinolate Content in Rapeseed Varieties by Different Origin

Oil-free meals of selected 91 rapeseed genotypes( 76 unimproved and 15 improved) of diverse genetic background were examined fur varietal differences on the major three glucosino lates content to search breeding materials for improving the quality of seed meals. The average contents of glucosinolates from unimproved 76 cultivars were 3.43 mg/g 3-buteny 1-isothiocyanate (BI). 0.50 mg/g 4-pentenyl-isothiocyanate (PI), and 6.58 mg/g 5-vinyl-2-oxazolidinethione(OZT), and total glucosinolate content was averaged 10.51 mg/g from oil-free seed meals. It were revealed the significant differences on BI, PI and OZT contents between means of varietal groups by origins, and found the negative correlations between ITC (BI+ PI) and OZT in the unimproved varieties from Taiwan, China, and Europe. Among the improved 15 rapeseed cultivars or lines, Youngsanyuchae, Naehanyuchae, Mokpo 64, Mokpo 68, Mokpo-MS, Bronowski, and Tower were selected as low glucosinolate rapeseed which had lower than 2,0mg/g in total glucosinolate.