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Photosynthetic quotient relationship to inorganic nitrogen of rivers in Trengganu

Photosynthetic quotient (P. Q) values with depth of rivers in Trengganu were found to be lowered by high levels of indigenous ammonium nitrogen, ranging from 1.2 -0.8, contrary to temperate conditions where high levels of nitrate increase the P. Q values from 1.5 to 2.0. This is attributed to the...

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Main Author: Shamsuddin, Lokman
Format: Article
Language:English
English
Published: 1983
Online Access:http://psasir.upm.edu.my/id/eprint/2213/1/Photosynthetic_quotient_relationship_to_inorganic_nitrogen_of_rivers.pdf
http://psasir.upm.edu.my/id/eprint/2213/
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spelling my.upm.eprints.22132013-05-27T06:59:35Z http://psasir.upm.edu.my/id/eprint/2213/ Photosynthetic quotient relationship to inorganic nitrogen of rivers in Trengganu Shamsuddin, Lokman Photosynthetic quotient (P. Q) values with depth of rivers in Trengganu were found to be lowered by high levels of indigenous ammonium nitrogen, ranging from 1.2 -0.8, contrary to temperate conditions where high levels of nitrate increase the P. Q values from 1.5 to 2.0. This is attributed to the fact that nitrate, in lieu of ammonia, produces two extra molecules of oxygen per atom of nitrate nitrogen assimilated, culminating in higher P. Q values. Nevertheless, the present findings tally well with that of marine phytoplankton (ie. P.Q is 1.2) when ammonia is the prime source of nitrogen. 1983 Article NonPeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/2213/1/Photosynthetic_quotient_relationship_to_inorganic_nitrogen_of_rivers.pdf Shamsuddin, Lokman (1983) Photosynthetic quotient relationship to inorganic nitrogen of rivers in Trengganu. Pertanika, 6 (1). pp. 78-82. English
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
English
description Photosynthetic quotient (P. Q) values with depth of rivers in Trengganu were found to be lowered by high levels of indigenous ammonium nitrogen, ranging from 1.2 -0.8, contrary to temperate conditions where high levels of nitrate increase the P. Q values from 1.5 to 2.0. This is attributed to the fact that nitrate, in lieu of ammonia, produces two extra molecules of oxygen per atom of nitrate nitrogen assimilated, culminating in higher P. Q values. Nevertheless, the present findings tally well with that of marine phytoplankton (ie. P.Q is 1.2) when ammonia is the prime source of nitrogen.
format Article
author Shamsuddin, Lokman
spellingShingle Shamsuddin, Lokman
Photosynthetic quotient relationship to inorganic nitrogen of rivers in Trengganu
author_facet Shamsuddin, Lokman
author_sort Shamsuddin, Lokman
title Photosynthetic quotient relationship to inorganic nitrogen of rivers in Trengganu
title_short Photosynthetic quotient relationship to inorganic nitrogen of rivers in Trengganu
title_full Photosynthetic quotient relationship to inorganic nitrogen of rivers in Trengganu
title_fullStr Photosynthetic quotient relationship to inorganic nitrogen of rivers in Trengganu
title_full_unstemmed Photosynthetic quotient relationship to inorganic nitrogen of rivers in Trengganu
title_sort photosynthetic quotient relationship to inorganic nitrogen of rivers in trengganu
publishDate 1983
url http://psasir.upm.edu.my/id/eprint/2213/1/Photosynthetic_quotient_relationship_to_inorganic_nitrogen_of_rivers.pdf
http://psasir.upm.edu.my/id/eprint/2213/
_version_ 1643822252685262848
score 13.211869

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