期刊
ANNALS OF FOREST SCIENCE
卷 60, 期 1, 页码 69-73出版社
E D P SCIENCES
DOI: 10.1051/forest:2002075
关键词
Quercus robur L.; reserve effect; cotyledon; nitrogen transfer
类别
The process of resource transfer from seed to growing plant, in terms of dry matter and nitrogen, was studied in Quercus robur L. seedlings. In a factorial experiment, seedlings were subjected to cotyledon excision and shading just after shoot emergence. In another experiment, we removed the cotyledons at emergence and 7, 14 and 21 days later. The transfer of resources from cotyledons to growing plant seemed to be almost complete at a very early stage. Cotyledon excision just after shoot emergence resulted in a significant reduction in seedling growth. Shading had a minor effect during this period. However, the influence of cotyledons on seedling growth declines soon. Their artificial suppression had no significant effect when it was performed later than two weeks after shoot emergence. The consequences of this fact on the relationship between dispersion by jays and seedling growth are discussed.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据