Study On Breeding And Supporting Technology Of New Maize Variety "Dafeng 30"

The new maize variety "Dafeng 30" is a combination of high quality maize inbred line Mol7 which has matured in China and foreign maize inbred line PH6WC.Through the reincarnation and selfing process,based on the advantages of high yield and high yield of domestic excellent inbred lines,combined with the excellent resistance of the US Department of inbred lines,we used domestic and foreign corn germplasm resources to achieve the advantages of foreign backbone corn.In the process of species name selection in Shanxi spring sowing precocious area and spring sowing in the late maturing area,Dafeng 30 had excellent performance.Based on the analysis of the systematic risk assessment of the development of the new varieties of maize in the "Dafeng 30",combined with the experience of developing large new varieties of maize seed enterprises in foreign countries,we have completed the research on seed production,disease resistance,the main cultivation techniques and including the pilot study.From 2013 to 2015,successively in Zhejiang,Shaanxi,Ningxia,Inner Mongolia,Shandong,Hebei and other 11 provinces,municipalities and autonomous regions for 3 years to promote the demonstration,radiation led the surrounding area to achieve a total of 578.9 million mu of planting area,we achieved corn production total 48602.2 million kilograms.The region directly increase the economic benefits of 97204.1 million yuan,and achieved good economic,social and ecological benefits.At the same time,it is good for the development of China’s corn seed industry in the systematic development of new varieties of corn.