Redistribution of sulphur during generative growth of barley plants with different sulphur and nitrogen status

摘要: The effect of S and N application on the distribution redistribution compounds in spring barley (Hordeum vulgareL.) was investigated pot experiments by determination changes content total-, sulphate- thiol-S leaves, ears stems during grain-filling period. Nitrogen sulphur had a clear interactive yield all plant parts with little or no at low rates similar without application. sulphate concentration different markedly affected rate. This most pronounced less least ears. In S-replete plants, leaf decreased grain development an average 28%, while S-deficient plants did not change About 70% redistributed to growing adequate supply compared about 35% plants. proportion ear originating from 49% 23%, respectively. study verifies that is relatively immobile as tissue considerably smaller than N. results suggest availability soil root important for developing grains exceeded amount exported leaves.