梅花品种抗寒性的比较分析

用电导法和生长法测定了梅花38个主要代表品种的抗寒性,并对梅花的系统、类、型的抗寒性进行了比较。结果表明,杏梅系统比真梅系统抗寒,真梅系统的直脚梅类和垂枝梅类比龙游梅类抗寒。在直脚梅类的六个型中,玉蝶型和绿萼型抗寒性较强,朱砂型抗寒弱。垂枝梅类的‘骨红垂枝’同直脚梅类的朱砂型抗寒性相似。对梅花品种抗寒性的季节性变化、同型及同品种在不同栽培地区的差异及其枝条脱水等也进行了一些讨论。提出了在北京地区引种栽培梅花的几点意见。

A COMPARATIVE STUDY ON DIFFERENCES IN COLD HARDINESS IN SOME OF MEI FLOWER CULTIYARS (PRUNUS MUME SIEB. ET. ZUCC)

Growth recovery method and electrical conductivity method were used to determine cold hardiness of 38 Mei flower cultivars belonging to different systems, groups and forms. It was found that cold hardiness of apricot mei series is higher than that of true mei series, upright mei group and pendulous mei group of true mei series is hardier than tortuous dragon group. Among the six forms of upright mei group the alboplena form and green calyx form are hardest in resistant and cinnabar purple form is the most tender, white the other forms are between these two extremes. Cold hardiness of the atropurea pendant form is similar to that of the cinnarar purple forms of the upright group.Seasonal fluctuations in cold hardiness of these cultivars were observed.Differences in cold hardiness between same cultivars and between same forms from different localities were indicated