Abstract:
In order to promote the popularization of high quality maize variety Pengyu 14,the breeding process,characteristics,cultivation techniques and breeding of parents and hybrids were introduced.Pengyu 14 was a maize hybrid bred of Heilongjiang Dapeng Agricultural Co.,Ltd.by crossing the self bred inbred lines Zhajibian as the female parent and the self bred inbred lines fm104 as the male parent in 2012.The seedlings of this hybrid have strong soil arching ability,and the adult plant type was semi-compact.The plant height was260 cm,and the ear height was 110 cm.Grain bulk weight was 748-775 g·L
-1,crude starch was 70.75%-73.99%,crude protein was 8.69%-11.98% and crude fat was 4.03%-4.18%.The hybrid showed strong resistance to corn leaf blight,head smut and stalk rot,at the same time the hybrid had the characteristics of high quality and suitable for machine harvest.The growth days from emergence to maturity were about 120 days while the active accumulated temperature should be about 2 400℃ above 10℃in adaptation zone.Pengyu 14 passed the Heilongjiang Province variety certification in 2020 with the certification number 2020 L0019,while the hybrid had broad prospects for promotion.