Premium
The influence of the level of potassium supply to young tobacco plants ( Nicotiana tabacum L.) on short‐term uptake and utilisation of nitrate nitrogen ( 15 N)
Author(s) -
Koch Klaus,
Mengel Konrad
Publication year - 1974
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.2740250504
Subject(s) - nicotiana tabacum , nitrogen , potassium , nitrate , chemistry , amino acid , botany , solanaceae , horticulture , biology , biochemistry , organic chemistry , gene
The influence of the level of potassium supply on the incorporation of labelled nitrogen ( 15 N) was studied in young tobacco plants. During a 4‐h period the plants, which were well supplied with potassium, absorbed a greater amount of labelled nitrogen and utilisation of this nitrogen for the synthesis of organic nitrogen compounds occurred more rapidly. The results clearly indicate that in the plants with lower K supply soluble amino acids accumulated whereas in the “+K” plants the incorporation of amino nitrogen into the protein fraction was accelerated.