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赣棉78—7系我所1975年用徐州142与辽棉3号杂交,经单株选择,南繁加代连续选育而成。1976年杂种一代混合收花留种,1977年在杂种二代群体中选出73号优良单株,同年9月赴海南加代进入选种圃(南繁21号),经田间观察,收花测产和室内考种结果,综合性状优异。1978、1979年进入所内品系比较。表现比推广品种沪棉204增产显著。根据田间顺序排列号定名为赣棉78—7。1980—1981年参加了全省棉花新品种区试,在不同类型棉区对其丰产性能、纤维品质及适应范围进行了鉴定。1982年参加了全省棉花新品种生产试验。1983年九江地区科委将赣棉78—7列为该区推广棉花良种之一。1984年省农牧渔业厅列为全省重点推广品种。同年6月由省农科院主持通过了技术鉴定。
Gan cotton 78-7 Department of our 1975 with the Xuzhou 142 and Liaomian 3 hybrids, the single plant selection, South Fan generation from continuous breeding. In 1976, the hybrid generation was planted in a mixed flowering plant. In 1977, 73 elite single plants were selected from the second generation of hybrids. In September of the same year, they went to Hainan Province and entered the selection garden (Nanfan 21). After field observation, Production and indoor test results, excellent comprehensive traits. 1978, 1979 into the department of comparison. Performance than the promotion of varieties of cotton Huo 204 significant increase. According to the order of field named Gan cotton 78 - 7. 1980-1981 participated in the province’s new varieties of cotton test, in different types of cotton area its high yield performance, fiber quality and the scope of the adaptation were identified. In 1982 participated in the province’s new varieties of cotton production test. 1983 Jiujiang Science and Technology Commission will Jiangxi cotton 78-7 as one of the areas to promote cotton varieties. In 1984 the province agriculture, animal husbandry and fishery as a province to promote key varieties. In June the same year by the Provincial Academy of Agricultural Sciences presided over the technical appraisal.