Critical plant size for flowering in biennials with special reference to their distribution in a sand dune system
Critical plant size for flowering in biennials with special reference to their distribution in a sand dune system
复制标题
二年生植物开花的临界植物尺寸，特别参考它们在沙丘系统中的分布
DOI：
10.1007/bf00376912
复制
发表时间：
1982
期刊：
影响因子：
2.7
通讯作者：
N. Kachi
中科院分区：
文献类型：
--
作者：
Tadaki Hirose;N. Kachi
以日本Azigaura沙丘系统中的4种二年生植物（月见草Oenothera erythrosepala、齿叶菊Dontostemon dentatus、糙毛飞蓬Erigeron strigosus和苏门答腊飞蓬Erigeron sumatrensis）为材料，在不同营养水平的盆栽条件下进行砂培，测定了花茎发育的临界植株大小。临界尺寸以O.红萼E. strigosus>D. dentatus=E.与它们在沙丘系统土壤肥力梯度上的分布顺序沿着一致。这种对应关系进行了讨论，并得出结论，在一个不太肥沃的环境中，两年生植物生产种子后，达到一个更大的尺寸比那些生产种子早有优势。
Four biennial species (Oenothera erythrosepala, Dontostemon dentatus, Erigeron strigosus, andErigeron sumatrensis) from the dune system at Azigaura, Japan, were sand-cultured in pots with different nutrient levels, and the critical plant size for the development of a flowering stalk was determined. The critical size decreased in the orderO. erythrosepala>E. strigosus>D. dentatus=E. sumatrensis, and corresponded to the order of their distribution along the gradient of soil fertility in the dune system. This correspondence is discussed, and it is concluded that in a less fertile environment, biennials producing seeds after attaining a larger size have an advantage over those producing seeds earlier.