1 and Kenjiandou 43 were bred by crossing Kenlongdou No.7 as female parent and Kennong No.5 as male parent, and were approved and popularized in March 2006. Easy varieties have high yield, disease resistance, high quality, wide adaptability and excellent comprehensive characters. At the same time, the culture technology was discussed.

2. Kendao 43 was bred by hybridization between Beidahuang Kenfeng Seed Industry Co., Ltd. and Rice Research Institute of Heilongjiang Academy of Agricultural Reclamation 07-2002 as the male parent.