【摘要】 对达拉特旗10个种源文冠果的物候进行了初步观测和分析,以期为文冠果种源选择及相关研究提供数据基础。研究结果表明:10个种源文冠果物候期发生时间存在一定差异,但物候发生顺序不变,基本在4月中旬进入顶芽萌动始期,高纬度种源萌动相对较晚。4月下旬至5月初进入展叶期,6月下旬至7月初进入顶芽封顶始期。受早霜低温影响,10月中旬叶片枯死,落叶期基本一致。在文冠果种质资源选择时,应优先考虑气候环境较为一致的种源。更多还原

【Abstract】 In order to provide a data base for the provenance selection and related research of Xanthoceras sorbifolia, the phenological characteristics of X. sorbifolia from 10 provenances were preliminarily observed and analyzed in Dalad Banner. The results showed that the phenological occurrence time was different for X. sorbifolia from 10 provenances, but the phenological occurrence sequence of X. sorbifolia from 10 provenances did not change, which the initiation period of terminal bud was in mid-April, and the sprouting time was relatively late for provenances from high latitude. The leaf-expansion period was in late April and the beginning of May, the binding of terminal bud was in late June and the beginning of July. Affected by low temperature in early frost, the leaves had withered in mid-October, with the same deciduous period for 10 provenances. In the selection of germplasm resources, the provenances with the same climate and environment should be given priority.更多还原