“紫精灵”等三个紫薇优良新品种品比试验

Selectling and breeding test of new varieties of Lagerstroemia indica“Zijingling”and others

以紫薇新品种“紫精灵”“紫韵”“紫莹”及对照品种“红叶”(国家级林木良种)的1年生扦插苗为试验材料,进行品比试验。结果显示:“紫精灵”紫薇的成熟叶深绿色,花紫罗兰色(RHS N81A),平均花径4.3 cm;“紫韵”紫薇的成熟叶灰紫红色(RHS N187A),花紫红色(RHS 58B),平均花径3.9 cm;“紫莹”紫薇的成熟叶深灰紫色(RHS N186A),花紫色(RHS N78B),平均花径3.2 cm。参试的4个紫薇品种的开花、生长和叶片性状差异明显,“紫精灵”紫薇开花性状的综合评分最高,“紫韵”“紫莹”紫薇的评分与对照品种“红叶”的差异不大。“红叶”紫薇的生长量最大,3个紫薇新品种的生长量和叶片大小均为中等,花期110 d以上。3个新品种的花色、叶色都很亮丽,花量大,都极具观赏价值。

In order to the product comparison test of Lagerstroemia india,selecting one-year-old cuttings of L.india“Zijingling”,L.india“Ziyun”,L.india“Ziying”and control variety L.india“Hongye”as test materia.The result was showed that the mature leaves color of L.india“Zijingling”were dark green,the color of flowers were violet(RHS N81A),and the average diameter of flower was 4.3 cm.The mature leaves color of L.india“Ziyun”were gray-purple red(RHS N187A),the color of flowers were purple-red(RHS 58B),average diameter of flower was 3.9 cm;the mature leaves color of L.india“Ziying”was dark gray-purple(RHS N186A),the color of flower was purple(RHS N78B),and the average diameter of flower was 3.2 cm.The traits of flowering,growth,and leaf of the four L.indica cultivars verities were different significantly.With the overall score of the flowering traits,L.india“Zijingling”the highest,and the scores of L.india“Ziyun”and L.india“Ziying”were not much different from those of the control variety L.india“Hongye”.L.india“Hongye”had the highest growth rate,while the other three new varieties of L.indica had moderate growth and leaf size,and the flowering period was more than 110 days.The color of flower and leaf of the three new varieties were very bright,the amounts of flowers were large,with the great ornamental values.