烤烟良种G—28,全名斯佩特基—28(Speight G—28),原系美国从C—139与牛津1—181杂交组合中选出的Spetghtq至杂交第4代再与NC95杂交选育出来的。1975年引进我省试种,1980—1982年列入全省烤烟品种区域试验的供试品种,在11个试验点中的绝大部分点上表现较好,一般亩产300斤左右,高的达400斤;烟碱含量适中,衡量烟叶品质的主要化学成分组合较为协调;(见表)烟叶油分足,香气较好,特别是叶 Flue-cured tobacco variety G-28, full name Speight G-28, the original United States from the C-139 and Oxford 1-181 cross-selected Spentghtq to the fourth generation of hybridization and NC95 hybridization Bred out. Introduced in 1975 in our province to try planting, 1980-1982 included in the province of tobacco varieties regional test varieties tested, 11 points in the test most of the points performed better, the general average per mu yield of about 300 pounds, high Up to 400 kg; moderate nicotine content, the main chemical composition to measure the quality of tobacco is more coordinated; (see table) tobacco leaves adequate, aroma is better, especially leaves