Abstract:

To screen out suitable flue-cured tobacco varieties in Shaoguan ecological tobacco areas, a field comparative experiment was conducted to study the differences of eight introduced flue-cured tobacco varieties on agronomic traits, disease occurrence, economic traits, appearance quality, sensory quality and chemical composition. The results showed that the field comprehensive performance of ‘FJ312’, ‘Minyan 7’and‘Yunyan 87’ were better than that of the control ‘K326’, the three varieties’ plant height was 78.0 to 108.5 cm, and the maximum leaf area was 1167.41 to 1454.26 cm²; the yield was 1727.05 to 2178.67 kg/hm², which was 20.83%-52.43% higher than that of ‘K326’; the output value was 43368.90 to 58946.13 yuan/hm², which was 29.68%-76.26% higher than that of ‘K326’. The disease resistance, appearance quality and sensory quality of the three varieties were better than those of ‘K326’, and ‘FJ312’ and ‘Minyan 7’ had the strongest disease resistance, whose incidence rate of the tobacco mosaic virus, tobacco bacterial wilt and tobacco brown spot were zero. In a word, ‘FJ312’, ‘Minyan 7’ and ‘Yunyan 87’, which are adaptable in Shaoguan ecological tobacco areas, can be used as local backup flue-cured tobacco varieties and have certain application prospects.

Key words: flue-cured tobacco varieties, introduced varieties, variety selection, disease resistance, yield and quality