Leaf and root chemical constituents of seven citrus rootstocks under the arid environment of Qatar

Certain leaf and root chemical constituents of seven citrus rootstock seedlings were determined to study and compare the nutritional status among these rootstocks. The rootstocks used were Macrophylla, Volkameriana, Rangpur lime, Cleopatra mandarin, Citrus amblycarpa, Sacaton citrumelo and Yuma citrange. Seedlings were grown in calcareous soil and irrigated with moderatly saline water under the arid environment of Qatar State, Arabian Gulf. Results showed that leaves of Macrophylla, Volkameriana and Rangpur lime contained significantly higher protein, ash, N, P, K, Fe, Mn and Cu and lower carbohydrates and Na contents than that of the other four studied rootstocks. However, the chemical constituents of roots did not show remarkable differences.