Effects of nitrogen on the growth and nitrogenous compounds of Ceratophyllum demersum

TY - JOUR

T1 - Effects of nitrogen on the growth and nitrogenous compounds of Ceratophyllum demersum

AU - Best, E.P.H.

N1 - Reporting year: 1980 Metis note: Limnological Institute Publication no: 196

PY - 1980

Y1 - 1980

N2 - The effects of high concentrations of nitrogen on Ceratophyllum demersum L. were studied. Nitrogen was added in the form of nitrate or ammonia. Growth and morphology were not affected by nitrate up to a concentration of 105 mg l−1. Ammonia, supplied in low concentration during a short period, stimulated growth; higher concentrations, applied for a prolonged period, were toxic. Increased levels of both nitrate and ammonia in the ambient water enhanced the nitrogen content of the plants. The amino acid concentration and composition, however, remained relatively constant.

AB - The effects of high concentrations of nitrogen on Ceratophyllum demersum L. were studied. Nitrogen was added in the form of nitrate or ammonia. Growth and morphology were not affected by nitrate up to a concentration of 105 mg l−1. Ammonia, supplied in low concentration during a short period, stimulated growth; higher concentrations, applied for a prolonged period, were toxic. Increased levels of both nitrate and ammonia in the ambient water enhanced the nitrogen content of the plants. The amino acid concentration and composition, however, remained relatively constant.

U2 - 10.1016/0304-3770(80)90051-0

DO - 10.1016/0304-3770(80)90051-0

M3 - Article

VL - 8

SP - 197

EP - 206

JO - Aquatic Botany

JF - Aquatic Botany

SN - 0304-3770

IS - 2

ER -