晚熟优质黄肉桃新品种美阳的选育  

Report of a new late-ripening yellow-fleshed peach cultivar Meiyang

作　　者：王越辉[1] 白瑞霞[1] 马之胜[1] 贾云云[1] 赵艳丽 杜润生[1] 李建明[1] WANG Yuehui;BAI Ruixia;MAZhisheng;JIAYunyun;ZHAO Yanli;DU Runsheng;LI Jianming(Shijiazhuang Institute of Fruit Trees,Hebei Academy of Agriculture and Forestry Sciences,Shijiazhuang 050061,Hebei,China;Hebei Forest and Grass Seedlings and Economic Forest and Flower Center,Shijiazhuang 050092,Hebei,China)

机构地区：[1]河北省农林科学院石家庄果树研究所,石家庄050061 [2]河北省林草种苗与经济林花卉中心,石家庄050092

出　　处：《果树学报》2024年第5期1009-1012,共4页Journal of Fruit Science

基　　金：国家现代农业产业技术体系项目(CARS-30-Z-03);热杂果现代种业科技创新团队项目(21326310D);河北省农林科学院科技创新专项课题(2022KJCXZX-SGS-6)。

摘　　要：美阳是以中晚熟白肉桃优株99-1-44(丰白×金童5号)为亲本,通过自交育成的晚熟黄肉桃新品种,2020年通过河北省林木品种审定委员会审定。果实圆形,果顶凹,缝合线中,两半部对称,平均单果质量377 g,大果质量602 g。果皮底色黄,果面着红色,着色率20%~50%,茸毛少。果肉黄色,硬溶质,风味甜,可溶性固形物含量(w)13.3%~16.2%。离核,鲜食品质佳。去皮硬度为13.7 kg·cm-2,采收持续期10 d以上,室温下可贮藏10~15 d。树势强健,树姿半开张。叶片椭圆披针形;花蔷薇型,有花粉,自花结实率和自然坐果率高。石家庄地区3月下旬萌芽,4月上旬盛花,9月中下旬果实成熟,果实发育期173 d左右,11月上旬完全落叶。美阳桃适宜在河北省中南部及相似气候地区栽培。Meiyang is a yellow-fleshed and high quality peach cultivar derived from selfing of 99-1-44 in 2004 in the experimental field of Shijiazhuang Institute of Fruit Trees,Hebei Academy of Agriculture and Forestry Sciences.The parent 99-1-44 is a mid-late ripening white-fleshed peach selected from a cross between Fengbai and Baby Gold 5 in 1999.It was initially selected in 2008 for its yellow flesh,late-ripening,freestone and high quality,and tested for regional adaptability in Changan District of Shijiazhuang,Ningjin County of Xingtai,Shunping County of Baoding and Xinji City from 2011 to 2020.It passed the final selection,and approved by Hebei Forest Variety Certification Committee in 2020.The fruit was round with two symmetrical halves,and had a concave top with intermediate suture.The average fruit mass was 377 g,and the maximum fruit mass was 602 g.The vertical diameter,check diameter and suture diameter was 8.33 cm,8.46 cm,and 8.49 cm,respectively.The peel had yellow background covered with 20%-50%red blush on the surface and short fuzz.The flesh was yellow with firm texture and moderate juice,and covered with little red pigment around stone.The flavor was sweet with a soluble solid content of 13.3%to 16.2%,and titratable acid content of 0.22%.The eating quality was excellent.The flesh firmness was 13.7 kg·cm-2,and the harvesting duration was more than 10 days.The storage capacity was good,and fruits could be stored at room temperature for 10-15 days.The leaf was green with 2-3 reniform leaf glands.The leaf shape was elliptical lanceolate.The showy flower was pink with pollens.In Shijiazhuang,the buds burst in late March,and the flower buds opened in early April.The fruits ripened in mid to late September,about 173 days after blooming.The leaves fell in early November.The tree had strong growing vigor and the tree form was semi-open.Y-shape could be adopted,with spacing of(2.5-3.0)m×(5.0-6.0)m.The fruit setting rate by self-pollination and natural fruit setting rate was 38.6%and 69.2%,respectively.The pollinat

关 键 词：桃 新品种 美阳 晚熟 黄肉 

分 类 号：S662.1[农业科学—果树学]