Sulphur deficiency in oilseed rape flowers : symtomatology, biochemistry and ecological impact
1995
Schnug, Ewald | Haneklaus, Silvia
ألمانية. Symptoms of severe sulphur (S) deficiency can be observed at all growth stages of oilseed rape. They are most likely if the concentration in fully developed younger leaves drops below 3.5 mg/g S. S deficiency is the only nutrient disorder which shows symptoms on flowers. Symptom expression under S stress is strongly dependent on the photosynthetic activity and thus on general growth conditions. Disorders in shape and colour of flowers are fairly often misinterpreted as an indication of genetic instability in oilseed rape lines and therefore knowledge about environmental factors affecting the appearance of rapeseed flowers is of great importance for rapeseed breeders. However, with prospect of hybrid OSR introduction, there is increasing interest in the relationship between S nutritional status, flower background of "white flowering" and its physiological and ecological impact.
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