Sulphur concentrations and distribution in three varieties of oilseed rape in relation to sulphur fertilization at vegetative stages
2001
Matula, J. (Vyzkumny Ustav Rostlinne Vyroby, Prague-Ruzyne (Czech Republic)) | Zukalova, H.
A pot trial was conducted on three varieties of winter rape: line variety Lirajet, its genetically modified form Lirajet Roundup Ready and hybrid variety Pronto to study the effect of graded sulphur application rates on concentrations and distribution of total sulphur, sulphates and glucosinolates in the parts of oilseed rape plants at the stage of spring regeneration of leaf rosette, stem extension and flowering. Large differences in the concentration and distribution of total sulphur and sulphates were determined between the varieties, particularly between the line variety Lirajet and its genetically modified form. The effect of graded sulphur application rates on the concentration and distribution of total sulphur and sulphates in the plant parts was confirmed. The highest increase in their contents at vegetative stages was observed in leaves. The trends of glucosinolate contents and distribution were not found to be explicitly related with S-fertilizing. Their proportions in the vegetative parts of oilseed rape were minimal. In the course of vegetative stages, a shift was observed in their higher contents in these vegetative parts of oilseed rape: roots, stem, racemes, leaves. Only the variety Pronto had somewhat higher values of glucosinolate contents in all vegetative parts including leaves.
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