Experimental hybridization of north-west European species in Carex section Acutae (Cyperaceae)
Experimental hybridization of north-west European species in Carex section Acutae (Cyperaceae)
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西北欧物种蕈草科（莎草科）的实验杂交
DOI：
10.1111/j.1095-8339.1973.tb01740.x
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发表时间：
1973
影响因子：
2.4
通讯作者：
J. S. Faulkner
中科院分区：
文献类型：
--
作者：
J. S. Faulkner
对毛蕊草（Carex）急性段种间杂种的合成和育性进行了研究。
Experiments were performed on the synthesis and fertility of interspecific hybrids in Carex section Acutae.
Crosses between members of a few pairs of species gave as high a seed set as crosses within species. Other pairs of species showed some degree of intersterility in their primary crosses, but the level of seed set varied widely according to which individuals of the species were crossed. The investigated species formed two groups, within which interfertility was high, and between which interfertility was low. These groups are compared with the taxonomic subsections of the Acutae and some amendments in the composition of the subsections are suggested.
In interspecific backcrosses, it was found that seed set was impaired only if the hybrid was the female parent. The pollen grains of interspecific hybrids were found to be more variable in size than those of non-hybrids.
Results obtained in these investigations confirm that C. juncella is conspecific with C. nigra and that north-west European plants of C. recta are actually interspecific hybrids of two types.