PJB-1996-13
SULPHATE ACQUISITION BY SUNFLOWER FROM ROOT MEDIUM WITH VARIABLE pH
BADR-UZ-ZAMAN, M. SALIM, B.H. NIAZI AND RAHMATULLAH
Abstract
A controlled conditions study on sunflower grown in root medium with a pH range of 4.5 to 8.5 revealed a consistent growth improvement with the rise in root medium pH. Similarly, the sulphate concentration of root and shoot consistently increased with the increase in root medium pH. The same trend was observed in the total sulphate uptake by sunflower shoot. A significant positive correlation between biomass accumulation and sulphate uptake by sunflower shoot indicated the distinct role of sulphur in optimum growth of this non conventional oil seed crop of Pakistan.
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