果树学报2024，Vol.41Issue(5)：1009-1012,4.DOI:10.13925/j.cnki.gsxb.20240055
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
摘要
Abstract
Meiyang is a yellow-fleshed and high quality peach cultivar derived from selfiing 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 Shi-jiazhuang,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 di-ameter and suture diameter was 8.33 cm,8.46 cm,and 8.49 cm,respectively.The peel had yellow back-ground 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 ear-ly November.The tree had strong growing vigor and the tree form was semi-open.Y-shape could be ad-opted,with spacing of(2.5-3.0)m x(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 pollination trees were not necessary.In com-mercial production,fruit thinning was necessary to maintain eating and commercial quality,and the dis-tance between fruits should be about 20 cm.The yield should be kept at the level of less than 2000 kg per 666.7 m2.The fruit bagging should be recommended after thinning,and the peel would be pure yel-low without removing the bag before harvesting.The freezing injury of branches and flower buds had never occurred since 2006.It should be suitable for planting in the central and southern of Hebei Prov-ince and similar climatic regions.关键词
桃/新品种/美阳/晚熟/黄肉Key words
Peach/New cultivar/Meiyang/Late-ripening/Yellow flesh分类
农业科技引用本文复制引用
王越辉,白瑞霞,马之胜,贾云云,赵艳丽,杜润生,李建明..晚熟优质黄肉桃新品种美阳的选育[J].果树学报,2024,41(5):1009-1012,4.基金项目
国家现代农业产业技术体系项目(CARS-30-Z-03) （CARS-30-Z-03）
热杂果现代种业科技创新团队项目(21326310D) （21326310D）
河北省农林科学院科技创新专项课题(2022KJCXZX-SGS-6) （2022KJCXZX-SGS-6）
