贵州枫香不同产地种子苗期生长差异

对贵州省4个不同产地的枫香种子进行了盆栽发芽试验，8个产地的种子开展了苗期大田试验。盆栽发芽试验结果表明多数枫香种子需4周后才能发芽出土，各产地种子发芽持续天数为42～60天，发芽率最高的是罗甸的种子为35．3％，最低是册亨的种子为5％；8个产地的种子的苗期性状观测的苗高、地径、高径比、主根长和侧根数差异显著。从综合指标高径比分析，以三都产的种子最好，罗甸、册亨、荔波、都匀、安龙、湄潭种子次之，台江最差。

Variation of the Seed Germination and Seedling Growth of Liquidambar formosana from Different Origins in Guizhou Province

Seeds of Liquidambar formosana from 4 origins were tested for the germination, and seedlings from 8 that of Ceheng - origin was the lowest. The growth performances of the seedling from different origins were significandy different, including the height, ground diameter, height/diameter ratio, main root length, and the number of the lateral roots. Taking the height/diameter ratio as reference, the seeds from Sandu -origin is the best, followed by that of Luodian, Ceheng, Libo, Duyun, Anlong and Meitan, and the seeds from Taoiiang -orizin is the worst.