Wu Gao-lin, Du Guo-zhen
Key Laboratory of Arid and Grassland Ecology of Education Ministry, College of Life Science, Lanzhou University, Lanzhou, China.
Ying Yong Sheng Tai Xue Bao. 2008 Jan;19(1):191-7.
Seed size and seedling recruitment strategy are of importance in the life-history strategy of plant. In this paper, the current ecological researches at home and aboard on the relationships between seed size and seedling growth were reviewed from the aspects of the effects of seed size on seed germination and seedling emergence, the relationships between seed size and seedling growth traits, and the relationships between seed size and seedling survival and competition ability. Some suggestions on future researches in this field were put forward. There were likely different relationships between seed size and seedling growth in different microenvironments and vegetation types, and the effects of seed size on seedling growth could result in different contributions of different seed-size species to the seedling recruitment of vegetation. The large-scale community level and the small-scale intra- and inter-species level researches on this issue should be strengthened, which would have significance for the recruitment and renewing of natural vegetation.
种子大小和幼苗更新策略在植物的生活史策略中具有重要意义。本文从种子大小对种子萌发和幼苗出土的影响、种子大小与幼苗生长性状的关系以及种子大小与幼苗存活和竞争能力的关系等方面，综述了国内外目前关于种子大小与幼苗生长关系的生态学研究。并对该领域未来的研究提出了一些建议。在不同的微环境和植被类型中，种子大小与幼苗生长可能存在不同的关系，种子大小对幼苗生长的影响可能导致不同种子大小的物种对植被幼苗更新有不同的贡献。应加强对此问题在大规模群落水平和小规模种内及种间水平的研究，这对天然植被的更新和恢复具有重要意义。
