采用系统选种法,从黄旦自然杂交后代中育成了高香型优质乌龙茶新品系瑞香。结果表明,瑞香属中叶类,中生种,一芽三叶期与铁观音相近;鲜叶产量比母本黄旦增产10%以上。制乌龙茶花香显,滋味醇厚有香,耐泡,品质明显优于黄旦,且制优率高。茶多酚总量24.1%、水浸出物总量43.4%,氨基酸总量3.0%、咖啡碱总量2.9%、儿茶素总量14.6%、L-EGCG含量5.4%,成品茶香精油总量128.98,明显高于母本,其乌龙茶香气主要组分为橙花叔醇、吲哚、β-紫罗酮+(Z)茉莉酮、苯甲醛、茉莉内脂等。抗逆性和适应性与对照种无显著差异。

Rui Xiang was selected from progenies of natural hybrid of Huang Dan cultivar. It is a newly bred Oolong tea cultivar with strong aroma and good quality obtained through systematic selection. Its plucking begins late in April, similar to that of Tie Guanying. The average yields in three tests were above 10% higher than that of Huangdan. Obtained Oolong tea quality is better than Huangdan with heavier appearance, strong fragrance and a better taste as well. Total water soluble, polyphenols, caffeine, catechins, EGCG and free amino acids were 43.4%, 24.1%, 2.9%, 14.6%, 5.4% and 3.0%, respectively. The total aroma oil determined in its made tea was 128.98, which was greater than Huangdan. Its main aroma components were nerolidol, benzaldehyde, jasmine jactone, α-farnesene, β-ionone and cis-jasmone. Its adaptation to environment and resistance to adverse condition was similar to Huangdan.