7804,是中国农科院麻类研究所从“来阳红麻”与714杂交组合中选育而成的红麻良种。1980年引入余江县农科所进行品种区域试验。通过三年的对比观察,证明这个品种具有产量高、品质优良、抗炭疽病能力强、生育期短,能留种等优点,比目前推广的青皮三号有更大的优越性。 7804, is the Chinese Academy of Agricultural Sciences Institute of hemp from “Laiyang kenaf” and 714 cross-breeding kenaf varieties. Introduced Yujiang County Agricultural Research Institute in 1980 to carry out regional trials of varieties. After three years of comparative observation, it is proved that this cultivar has the advantages of high yield, good quality, strong ability of resisting anthracnose, short growth period, and being able to keep seeds, which is more superior than the current promotion of Qingpi No.3.