早熟玉米新品种亚盛12号选育报告

Breeding Report on the New Early Maturing Maize Variety Yasheng 12

为丰富甘肃省内高海拔旱作区适种玉米品种,以自育自交系LKM66为母本、LKF5-1为父本杂交选育出早熟玉米新品种亚盛12号。2021—2022年参加甘肃省河西联合体早熟组区域试验,2 a 10点(次)平均折合产量11418.5 kg/hm2,比对照品种德美亚3号增产5.25%。2022年参加甘肃省河西联合体早熟组生产试验,5点(次)平均折合产量11886.0 kg/hm2,比对照品种德美亚3号增产6.57%。该品种株高260.5 cm,穗位高90.9 cm。穗长19.5 cm,穗行数14~16行。籽粒半马齿型,百粒重33.1 g。籽粒含蛋白质101.0 g/kg、粗淀粉696.7 g/kg、粗脂肪51.8 g/kg、赖氨酸2.9 g/kg,容重756 g/L。具有活秆成熟、籽粒大、品质好、稳产性较好等特点,适宜在甘肃省早熟玉米生产区种植。

To enrich the variety of maize suitable for high-altitude dry farming areas in Gansu Province,the new early maturing maize variety Yasheng 12 was successfully bred using the inbred lines LKM66 as the female parent and LKF5-1 as the male parent.In the 2021 to 2022 regional trials by the Hexi Consortium's early maturing group in Gansu,Yasheng 12 had an average yield of 11418.5 kg/ha among 10 pints in 2 a,which was 5.25%higher than that of the control variety Demiya 3.In the 2022 production trials,it averaged a yield of 11886.0 kg/ha from 5 pints,6.57%higher than the control variety Demiya 3.The variety has a plant height of 260.5 cm,ear height of 90.9 cm,ear length of 19.5 cm,and 14 to 16 rows per ear.The grains are half dent type,with a 100-grain weight of 33.1 g.The grain contains 101.0 g/kg protein,696.7 g/kg crude starch,51.8 g/kg crude fat,2.9 g/kg lysine,and has a test weight of 756 g/L.It features early maturity,large grains,good quality,and stable yield,making it suitable for cultivation in Gansu's early maturing maize production areas.