Abstract
Seedlings and detopped plants of Chinese chive (Allium tuberosum Rottler) were grown in four levels of nutrient solution pH (4.5, 5.5, 6.5 and 7.5 of 1 strength solution) and four concentrations (1/4, 1/2, 1 and 2 units of standard solution of pH 6.0) to study conditions for hydroponic production. The growth of seedlings was less affected by the solution pH, but was reduced at the highest concentration (2 units of standard solution). The re-growth of detopped plants was reduced at pH 4.5 and by the highest concentration. These results show that Chinese chive has the adaptability to wide range of pH and concentration of the nutrient solution in hydroponic cultivation. It is estimated that the optimal pH is 5 to 7, and optimal concentration of nutrient solution is 1/4 to 1 unit of standard solution for hydroponic cultivation of Chinese chive.
