Turion morphological responses to water nutrient concentrations and plant density in the submerged macrophyte Potamogeton crispus.

ABSTRACT: Asexual propagules are the dominant means of propagation in most submerged macrophytes. To improve the understanding of how water nutrient concentrations and population density influence the turion production of Potamogeton crispus L., the turions were planted in mesocosms with three water nutrient conditions (ambient lake water, high P and high N) and two plant density levels (4 and 15 turions m(-2)). After a 9-month experiment, the +P in the water column significantly increased the total turion number per plant under both of the plant density treatments. However, the +N in the water column did not affect the turion number per plant under low plant density. The +P in the water and high plant density significantly reduced the turion individual biomass. An examination of 3210 turion individ

SUBMITTER: Qian C 

PROVIDER: S-EPMC4233331 | biostudies-literature | 2014 Nov

REPOSITORIES: biostudies-literature