烤烟新品种龙江981的选育及其特征特性

摘要

The new flue-cured tobacco variety Longjiang981 was developed via directional selection through traditional cross breeding technology with Longjiang912 as the female parent and CV87 as the male parent. The genetic traits of Longjiang981 were stable and the plants grew uniformly and vigorously in the field. It was easy to cure. Longjiang981 was resistant to PVY, moderately resistant to brown spot and Granville wilt, yet moderately susceptible to blank shank, TMV, CMV and root-knot nematode. Compared with the control variety NC89, the leaf yield, yield value, average price and ratio of high class leaf of Longjiang981 increased by 16.78%, 31.32%, 13.28% and 9.85%, respectively. Longjiang981 had a better cured leaf quality with balanced chemical composition, and better met the requirements of tobacco industry. With higher quality, resistance, yield and wide adaptability. Longjiang981 is suitable for China’s northern tobacco growing areas.%烤烟新品种龙江981系以龙江912作母本，CV87为父本，采用常规育种技术定向选育而成的烤烟新纯系品种。该品种植株结构合理，遗传性状稳定，田间生长势强，易烘烤。抗PVY，中抗赤星病、青枯病，中感黑胫病、TMV、CMV和根结线虫病。与对照品种NC89相比，烟叶产量、产值和均价分别提高16.78%、31.32%和13.28%，上等烟比例增加9.85个百分点。烤后原烟外观质量好，内在化学成分协调，烟叶质量符合中式卷烟需要，是一个品质、抗性、产量、适应性等方面较能兼顾的优良新品种。该品种适宜我国北方烟区种植。