Screening of phytic acid and inorganic phosphorus contents in corn inbred lines and F1 hybrids in tropical environment

Seeds of inbred lines and F1 hybrids of corn (Zea mays L) grown from late rainy season of 2007 to early rainy season of 2009 at the National Corn and Sorghum Research Center, Thailand, were analyzed to determine the contents of phytic acid (PA) and inorganic phosphorous (InP). The PA contents in the tested inbred lines and F1 hybrids ranged from 800 to 1,000 mg per 100 g seed. The two groups of Ki inbred lines (Nursery no. 122 in the 2007 late rainy season), based upon the analysis of PA, were categorized to low (L) (the value o