烤烟早熟品种比较试验

为筛选适合云南烟区种植的烤烟早熟品种,在云南玉溪进行了品种比较试验,以K326为对照,对6个早熟品种的生育期、田间自然发病率、产量及产值等性状进行观察分析.结果表明:6个早熟品种中,8902-42和Islangold的生育期与对照相同,没有表现出早熟特性,其余品种的大田生育期比对照K326缩短5～10d,PVH19的生育期比对照K326缩短10d,表现出较明显的早熟特性.龙江911、宣洞区和PVH19田间自然发病率较低,综合抗性较好.龙江911和PVH19的产量、产值均超过对照K326,上等烟比例除PVH19与K326接近外,其余品种均低于对照.综合分析各性状,PVH19表现最好,龙江911次之,筛选出的2个品种可以在云南烟区进行试验示范.

Comparison Test of Early Mature Flue-cured Tobacco Varieties

Comparison test was conducted in Yuxi Yunnan with 6 early mature flue-cured tobacco varieties and K326 as the check, the objective of the test is screen tobacco varieties suitable for growing in Yunnan. By investigating the growing periods and the natural disease incidence in the field and analyzing the yield and the output, the results showed that among the 6 early mature varieties, 8902 and Islangold had the same growth period with the check, the nature of early mature did not showed up, while the other 4 varieties were 5~10d shorter in their growing periods, PVH19 showed pronounced early mature character and it was 10d earlier in growth period than the ck variety K326, Longjiang911 Xuandongqu and PVH19 had lower natural disease incidence in the field and better multiple disease resistance; Longjiang 911 and PVH19 had higher yields and output value than that of the ck; ratio of the grade A cured leaf of all the tested varieties were lower than that of the ck except PVH19 which was close to the ck. In summary of all the important characteristics of these varieties performed, the best was PVH19 followed by Longjiang91, the two varieties could be chosen for pilot growing in Yunnan tobacco area.