【摘要】 以平均节间长、最长节间、节间直径、顶二叶叶长和叶宽5个指标,比较了野生狗牙根(Cynodon dac-tylonL.)在阳生地、阴生地和旱生地3种生境下的形态差异,结果表明:野生狗牙根的平均节间长、最长节间、叶长、叶宽4个指标在3种生境下表现出显著差异,但节间直径没有明显差异;就成坪性、实用性的综合指标而言,旱生狗牙根较强于阳生狗牙根和阴生狗牙根。据此推测野生狗牙根能通过对自身形态结构的调整对不同生境产生可塑性响应,并以此来适应环境胁迫。更多还原

【Abstract】 The differences in form characteristics of wild bermudagrass(Cynodon dactylon L.) were compared with 5 indexes including the average of internode length,the length of longest internode,the internode diameter,the leaf length,the leaf width in 3 kinds of different habitat(sun ground,shade ground,xeric ground).The results showed that the average of internode length,the length of longest internode,the the leaf length,the leaf width displayed remarkable differences in 3 different habitats,but there was no obvious difference in the internode diameter.Results indicate that the wild Cynodon dactylon L.would pass and the plasticity response produce to one’s own form adjustment of structure to different habitats,adapt to environment coerce.更多还原