观赏桃新品种玲珑红的选育

Breeding report of a new ornamental peach cultivar Linglonghong

玲珑红是以嫣红早花桃为母本、红寿星桃为父本进行杂交,从其杂交后代中选育出的观赏桃新品种。树姿矮型,2年生平均株高50.7 cm,平均冠幅34.6 cm×34.9 cm,枝条短;节间短,平均长0.9 cm;以短枝着花为主,成花容易,花芽数多;花为梅花形,重瓣,平均花径3.8 cm;花蕾深红色,花瓣红色,4轮,平均22枚;花丝平均33条,少量花丝瓣化;花药黄色,有花粉;雌蕊1枚;花萼2轮,10枚,红褐色。在河南省许昌地区,始花期3月14日,盛花期3月18—27日,末花期3月29日,花期15 d左右。果面绿色,茸毛中等。耐旱,耐寒,适应范围广,抗逆性强。需冷量较低,在满足需冷量400~550 h的地区均可栽植。

Linglonghong(Prunus persica)is a new ornamental peach cultivar derived from a cross between Yanhongzaohua and Hongshouxing made in 2015.It was initially selected in 2017 for its bright colors and early flowering.The flowers were red and of high ornamental value.Then it was propagated by grafting for further investigation.After regional adaptability testing at three sites(including Xuchan,Zhengzhou and Luoyang),it was finally selected in 2023.The tree posture was dwarf,with a semi open crown and straight branches.The average height of two-year old plants was 50.7 cm,with an average crown width of 34.6 cm×34.9 cm.The internodes were short,with an average length of 0.9 cm.The flowers usually grew on short branches,with an average of 36 flowers per branch.The number of flower buds were moderate.The flower was plum in shape,with multi petal,with an average diameter of 3.8 cm and an average number of petals of 22.The flower buds were deep red,and the petals were red.The sepals were double and reddish brown.The average number of filaments were 33.The anthers were yellow in color.In Xuchang of Henan Province,the initial flowering time of this individual plant was around March 14th,8 days earlier than the check variety Shimahongshouxing.The peak flowering period lasted from March 18th to 27th,and the final flowering period was on March 29th.The flowering lasted for about 15 days.The fruit was green with moderate hair.It was resistant to drought,cold and adversity.It would be suitable for planting in the areas with chilling accumulation of 400-550 hours.