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Growth Responses of Wheat Cultivars to Rock Phosphate in Hydroponics

作者：

Muhammad Ashraf;. Rahmatullah;Muhammad Maqsood;Shamsa Kanwal;Muhammad Tahir;Liaqat Al

单位：

Directorate of Land Reclamation, Irrigation & Power Department, Punjab (Pakistan);Institute of Soil and Environmental Sciences, University of Agriculture Faisalabad, Pakista;Institute of Soil and Environmental Sciences, University of Agriculture Faisalabad, Pakistan

关键词：

wheat cultivars;p uptake;utilization efficiency;soils;and p;rock phosphat

摘要：

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.

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Growth Responses of Wheat Cultivars to Rock Phosphate in Hydroponics

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