Primary selection and utilization of a new germplasm teosinte

Torrid Zone teosinte (Zea mexicana）is shortday plant, and does not bloom and produce seed in the longday area of north China. An experiment was conducted in the long day area to estimate the reproduction property and hybrid selection possibility of a new germplasm teosinte Lumu No.2 with photoperiod nosensitivity, which was selected from nature variance plant by systematical breed. This study showed that the new germplasm was able to produce seeds in longday area, and its florescence date was in early or medium August and the seed mature date was in early October. The fresh grass and seed yield was 45 930 kg/ha and 1 595.5 kg/ha, respectively. The successful rate of hybrid selection was 72.7% when Lumu No.2 was used as father plant. This study suggested that the new germplasm could plant in longday area, which would amplify the germplasm of hybrid selection and reduce cost of corn seed production.