Pedosphere 19(3): 398--402, 2009
ISSN 1002-0160/CN 32-1315/P
©2009 Soil Science Society of China
Published by Elsevier B.V. and Science Press
| Growth responses of wheat cultivars to rock phosphate in hydroponics |
M. ASHRAF1 , RAHMATULLAH2, M. A. MAQSOOD2, S. KANWAL2, M. A. TAHIR2 and L. ALI2 |
1 Directorate of Land Reclamation, Irrigation & Power Department, Punjab (Pakistan)
2 Institute of Soil & Environmental Sciences, University of Agriculture, Faisalabad (Pakistan) |
| ABSTRACT |
| Screening cultivars to grow under conditions of low phosphorus (P) availability and utilize P efficiently from compounds of low solubility in soils may be beneficial to overcome poor plant growth in P-deficient soils. The growth behavior and P utilization efficiency of seven wheat cultivars grown in hydroponics were studied, using rock phosphate as P source. The wheat cultivars grown for 30 days were significantly different in biomass accumulation, P uptake and P utilization efficiency. The dry matter production of all the cultivars was significantly correlated with P uptake, which in turn correlated to the drop in the root medium pH. The ranking of wheat cultivars on the basis of dry matter yield, P uptake and P utilization efficiency was Zamindar 80 > Yecora > C 271 > WL 711 > Barani 83 > PARI 73 > Rohtas. The cultivar Zamindar 80 appeared to possess the best growth potential in P-deficient soils. |
| Key Words: cultivars, hydroponics, nutrition, rockphosphate, wheat |
| Citation: Ashraf, M., RAHMATULLAH, Maqsood, M. A., Kanwal, S., Tahir, M. A. and Ali, L. 2009. Growth responses of wheat cultivars to rock phosphate in hydroponics. Pedosphere. 19(3): 398-402. |
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