PT  - JOURNAL ARTICLE
AU  - Scherer, H.W.
AU  - Pacyna, S.
AU  - Manthey, N.
AU  - Schulz, M.
TI  - Sulphur supply to peas (Pisum sativum L.) influences symbiotic N<sub>2</sub> fixation
DP  - 2006 Feb 28
TA  - Plant, Soil and Environment
PG  - 72--77
VI  - 52
IP  - 2
AID - 10.17221/3348-PSE
IS  - 12141178
AB  - In a pot experiment (culture substrate: perlite with a granulometric composition 0-3 mm) with peas (Pisum sativum L.) we studied the influence of sulphur supply on S and N concentrations, yield formation, symbiotic N<sub>2</sub> fixation and available amounts of glucose and sucrose. Under S deficiency conditions S and N concentrations as well as the amounts of glucose and sucrose in shoots and nodules were significantly reduced. We assume that the reduced amounts of available photosynthate with suboptimal S supply could become limiting to energy production and as carbon skeletons for ammonia assimilation, and therefore cause a lower N<sub>2</sub> fixation and a reduced yield formation.