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Germination and Growth of Potamogeton pectinatus (L.) at Different Water Depths in Lake Nainital, Uttar Pradesh, India
Author(s) -
Purohit Rekha,
Singh S. P.
Publication year - 1987
Publication title -
internationale revue der gesamten hydrobiologie und hydrographie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.524
H-Index - 52
eISSN - 1522-2632
pISSN - 0020-9309
DOI - 10.1002/iroh.19870720212
Subject(s) - potamogeton , germination , biology , uttar pradesh , shoot , potamogetonaceae , water column , botany , photic zone , horticulture , aquatic plant , macrophyte , ecology , phytoplankton , nutrient , socioeconomics , sociology
Data on germination of tubers and subsequent growth of young plants of Potamogeton pectinatus were recorded at different depths of the water column in Lake Nainital. The depth of euphotic zone is about 5 m. Tubers were placed at 1, 2.5, 5.0, 7.5 and 10 m water depth in brass net bags. A highly significant negative correlation was found between depth on one hand and germination percentage of tubers, length of shoots and number of leaves on the other hand. Germination of tubers was positively related to pH, dissolved oxygen and temperature of water.