以江苏沿江地区农业科学研究所选育的新品种L0630与密枝红叶李、长春红叶李、俄罗斯红叶李等进行了对比试验,结果表明:L0630的落叶期最晚为12月上旬,比最晚落叶的岳寒红叶李还要晚10 d左右,L0630新叶叶色最鲜亮,尤其在8月份,其他品种都处于半休眠状态,但L0630还有新叶生长,改变了红叶李夏季叶色暗灰的现状.因此,新品系L0630的叶色、物候期、年生长量等均优于其他几个品种,适宜在华东地区大面积推广.%The new red - leaf plum variety L0630 is bred by Institute of Agricultural Sciences in Riparian Region of Jiangsu Province. L0630, Mizhi red - leaf plum, Changchun red - leaf plum, and Russia red - leaf plum were compared through tests. The results showed that the latest defoliation of L0630 appeared in early December, which was aboutlO days later than that of Yuehan red - leaf plum. The new leaves of L0630 were the brightest, especially in August, while the other varieties were in semi -dormancy condition. However, L0630 could still grow out new leaves, thus its dark - gray leaf color was changed in summer. Therefore, the leaf color, phenological phase and annual growth amount of the new variety L0630 were superior to those of other varieties, and it was suitable for large - area promotion in east China.
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