Concentration of total phosphorus in grain of common wild rice, cultivated rice and upland rice

Abstract

The purpose of this study was to evaluate the variation on phosphorus concentration in rice grain. Thestudy composed with two experiments, the first experiment was to analyzed the phosphorus concentration both inhusk rice and brown rice in some varieties of common wild rice, cultivated rice and upland rice harvested in Phetchaburi.The second experiment subjected to analyze the phosphorus concentration in brown rice collected from the areaof Hui-namkhun Royal Project Development Center (HK), Chiangrai and the area of Kaenoi Royal ProjectDevelopment Center (KN), Chiang Mai. Both experiments were provided in Completely Randomized Design with3 replications. The results from first experiment showed a higher phosphorus percentage values accumulated in huskrice than brown rice for 0.1%g P in all rice varieties. Prathum Thani1, IR68144, Sew Mae Jan and annual commonwild rice were highest on phosphorus concentration values. In the second experiment the average of phosphoruspercentages values in brown rice collected from Hui-namkhun was not different from those which collected fromKaenoi Royal Project Development Center. Variation of varieties within locations were affected by genetic andenvrironment. The variation was presented in each group effect from both of genetically and environment variations.