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...

وصف كامل

محفوظ في:
التفاصيل البيبلوغرافية
المؤلف الرئيسي: Shamsuddin, Lokman
التنسيق: مقال
اللغة:English
English
منشور في: 1983
الوصول للمادة أونلاين: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/
الوسوم: إضافة وسم
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المؤسسة: Universiti Putra Malaysia
اللغة: English
English
الوصف
الملخص: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.