The influence of the level of potassium supply to young tobacco plants (Nicotiana tabacum L.) on short-term uptake and utilisation of nitrate nitrogen (15N)

✍ Scribed by Klaus Koch; Konrad Mengel

• Publisher: John Wiley and Sons
• Year: 1974
• Tongue: English
• Weight: 395 KB
• Volume: 25
• Category: Article
• ISSN: 0022-5142
• DOI: 10.1002/jsfa.2740250504

✦ Synopsis

Abstract

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.