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水深梯度对竹叶眼子菜生长和繁殖的影响
THE GROWTH AND REPRODUCTION RESPONSE OF POTOMOGETON MALAIANUS MIQ. TO WATER DEPTH GRADIENT
【摘要】 研究结果表明:水深决定了其生长区内竹叶眼子菜茎的长度,竹叶眼子菜茎叶比与水深有显著相关性,关系式:Y=0.00517X+0.3126;竹叶眼子菜地上与地下部分生物量分配与水深没有相关性;沿着水深梯度,竹叶眼子菜的抽条数(无性繁殖)和花序数呈递减趋势。
【Abstract】 A field study was undertaken to investigate the growth and reproduction response of P. malaianus to water depth gradient. The results showed that the stem length of P. malaianus was decided by water depth where the plant grows. There is a significant relationship between stem:leave ratio of P. malaianus and water depth gradient. that the relationship between below-ground biomass of P. malaianus and water depth gradient was not found. With increasing of water depth, the number of plantlet and inflorescence gradually dwindles.
【关键词】 水深梯度;
竹叶眼子菜;
生长;
繁殖;
【Key words】 Water depth gradient; Potamogeton malaianus Miq.; Growth; Reproduction;
【Key words】 Water depth gradient; Potamogeton malaianus Miq.; Growth; Reproduction;
【基金】 中国科学院资源环境科学技术局重大项目!KZ951-Al-102;KZ951-B1-104
- 【文献出处】 水生生物学报 ,ACTA HYDROBIOLOGICA SINICA , 编辑部邮箱 ,1999年03期
- 【分类号】Q948
- 【被引频次】69
- 【下载频次】531