북한 지역 적응 옥수수 품종 선발을 위한 출사 및 생육 생태 연구

As a basic study on the development of maize varieties adaptable to the northern part of the Korean peninsula, 17 varieties/line cross were cultivated from 2017 to 2018 in Donggang, Liaoning Province and Longjing, Yanbian Prefecture, according to the Chinse traditional cultural practices. Regional difference of accumulated temperature from plant to silking was lower than of the number of days, on the contrary the annual variation of the number of days was lower than the accumulated temperature. In Yongjeong, late variety of North Korea maturity group could be cultivated, and Donggang correspond to the area connecting Supoong, Huecheon, Shinpo, Yangdeok and Pyeonggang. The varieties with an average yield of more than 1,000kg per 10ain three locations were Shinwhanok and Whangdaok. In the northern high mountainous regions, Samjiyeon, Pungsan, and Jangjin are difficult to cultivate maize. But middle high mountains Hyesan is classified by a maturity group middle, northern region Soenbong is middle and/or middle late parts, and northern mountainous Junggang and Chongjin in north east coastline area are middle late and/or late. respectively.