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为了明确烤烟杂交新品系SF04的适应区域、应用价值、栽培烘烤特性及抗病性等,本研究在云南省5个不同生态区开展品种小区试验。试验表明:烤烟杂交新品系SF04株型为塔形,叶形长椭圆形,大田生育期120 d,封顶株高110.5 cm,平均有效叶数20.5片,最大腰叶长68.6 cm,最大腰叶宽29 cm,节距4.8 cm,茎围9.3 cm;产量为2 995.5 kg/hm2,产值25 692.2元/hm2,产指1 493.1,上等烟比例30.1%,产量、产值的高稳性较好,尤其在昭通、曲靖试点表现突出。经抗性鉴定结果表明,SF04抗黑胫病、中抗南方根结线虫病,感TMV和赤星病,但不高感某一种病害,这与田间自然发病调查结果一致。综合分析表明,SF04遗传性状稳定,综合表现超过对照K326,可进一步进行生产示范及工业评价。
In order to clarify the adaptation region, application value, cultivation and bake characteristics and disease resistance of SF04, a new variety of flue-cured tobacco hybrids was developed in five different ecotopes in Yunnan Province. The results showed that the plant type of SF04 was tower-shaped with long leaves and oval shape. The growth period of the field was 120 days, and the height of capping plant was 110.5 cm. The average effective leaf number was 20.5. The maximum waist length was 68.6 cm. 29 cm, 4.8 cm in pitch and 9.3 cm in stem. The yield was 2995.5 kg / hm2, the output value was 25 692.2 yuan / hm2, the index was 1 493.1, and the proportion of superior tobacco was 30.1% Especially in Zhaotong, Qujing outstanding performance pilot. The results of resistance evaluation showed that SF04 anti-shank disease was resistant to root-knot nematode disease, TMV and brown spot disease but not to a certain kind of disease, which was consistent with the findings of natural incidence in the field. Comprehensive analysis showed that the genetic trait of SF04 was stable and its comprehensive performance was higher than that of CK326, which could be used for further demonstration of production and industrial evaluation.