【摘要】 为给白檀遗传多样性的研究、野生资源的筛选、优良种质资源的保存及引种栽培提供理论依据,采用比较形态学方法,观测并分析了不同居群华白檀植株的物候期及其相应的形态变化情况,并对其物候指标与种苗的主要立地因子进行了相关性分析。结果表明:3月底植株开始进入萌芽期,4月中上旬进入展叶期,随着叶的展开,新枝及花序开始生长,5月下旬开始进入结果期,10月上旬果实完全成熟;不同居群白檀植株的萌芽、展叶和开花期相差5～10 d,结果期虽然起始时间有差异,但是果实成熟期基本一致;不同居群的物候期相同的白檀植株其外部形态亦存在较大差异,其中展叶期的形态差异最为明显;不同居群植株的物候起始时间和持续时间、持续时间和器官大小及各器官之间都具有一定的相关性。更多还原

【Abstract】 In order to provide theoretical foundation for genetic diversity research,wild resources selection,elite germplasm reservation,and introduction and cultivation in Symplocos paniculata,using comparative morphology method,phenological phase and morphological change of different S.chinensis populations were observed and analyzed,and correlation between phenological indexes and major site factors of seedlings was analyzed.The results show that germination stage begins at the end of March;leaf-expansion period starts in the first ten days of April,while new branches and inflorescence begin to grow;fruiting stage begins in the last ten days of May;fruits completely mature in the first ten days of October.There is a 5-10 days’ difference among different S.paniculata populations in germination,leaf-expansion and flowering stages.There is also a difference in the fruiting initiation stage,but the fruit maturation period is basically identical.External morphological has significant difference between different populations,especially during the leaf-expansion period.There exist the correlation between the phenological initiation and duration,duration and organ size,and different organs of different populations.更多还原