我区自1973年开展群众性苹果芽变选择与利用研究以来,先后从元帅系中初选了200余个优良芽变单株,经鉴定,其中18个单株各方面的指标均优于亲系。经地区、省和全国各级几次鉴评,以红星—7号和红星—140号最优,现简介如下:红星——7号红星—7号是1974年秋在天水县伯阳公社高坪大队果园选出的芽变株,系元帅系红星品种。1975年2月在“全国苹果品种鉴评会”鉴评,四项指标总分为207.6分(果形50.83分, My district since 1973 to carry out mass apple bud mutation selection and utilization of research, successively from the Marshal Department primaries more than 200 fine buds of individual plants, identified, of which 18 individual indicators in all aspects are better than the pro system. By regional, provincial and national levels of several appraisals to Red Star -7 and Red Star -140 best, are as follows: Red Star - 7 Red Star -7 is the autumn of 1974 in Tianshui County, Bo Yang commune Gaoping Brigade orchard selected bud mutant strains Marshal Department of Red Star varieties. February 1975 in the “National Apple Variety Appraisal Council,” Kam, the four indicators total score of 207.6 points (fruit shape 50.83 points,