晴朗（代号23号）油桃原产美国，1984年从澳大利亚引进高接，1985年结果。1986年定植母树50株，1987年建立生产示范园5亩，栽植410株，现在大连地区已发展4万余株。经我们考察研究，该品种有以下优点：1．果面光滑无毛，成熟期晚（10月上中旬成熟），商品价值高，稍加催熟处理 Sunny (code 23) nectarines originated in the United States, imported from Australia in 1984, high take, 1985 results. There were 50 mother trees planted in 1986, 5 mu production demonstration parks in 1987 and 410 planted plants. Now more than 40,000 strains have been developed in Dalian. After our study, the varieties have the following advantages: 1. Fruit smooth and glabrous, mature late (mature in mid-October), high value of the commodity, a little ripening treatment