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以K326为对照,采用小区试验对8个烤烟新品系的农艺性状和经济性状进行分析。结果表明:(1)移栽后35 d,供试品系叶片数、株高、茎围、最大叶长与叶宽存在差异。ZYH-4叶片数最多(13.6片),DZ-4株高最高,茎围除YQ-1和ZYH-4外其他品系显著或极显著高于对照品种K326,MT-2、SX-1、ZYH-5叶长和叶宽显著高于K326。(2)移栽后60 d,供试品系主要农艺性状亦存在显著差异。MT-2叶片数最多(24.3片),除YQ-1与MT-2外其他品系株高显著高于对照K326;WY-1茎围最大(11.16 cm),SX-1的叶长最长(83.8 cm),MT-1叶宽最宽。(3)供试品系产量变幅为1 863~3 380.85 kg/hm2。产值、产量、均价和上等烟率表现最好的是MT-2。(4)聚类分析表明,MT-2、DZ-3、YQ-1、SX-1、WY-1的综合经济性状显著优于其他品系。
Taking K326 as control, the agronomic and economic traits of 8 new tobacco lines were analyzed by plot test. The results showed that: (1) At 35 days after transplanting, the number of leaves, plant height, stem circumference, maximum leaf length and leaf width of the tested lines were different. ZYH-4 had the highest number of leaves (13.6), the highest height of DZ-4, and the other lines except YQ-1 and ZYH-4 in stems were significantly or extremely significantly higher than those of K326, MT-2, SX-1 and ZYH -5 leaf length and leaf width were significantly higher than K326. (2) At 60 days after transplanting, there were also significant differences in the main agronomic traits of the tested lines. The number of MT-2 leaves was the highest (24.3), except for YQ-1 and MT-2. The height of stem of WY-1 was the largest (11.16 cm) and the length of SX-1 was the longest 83.8 cm), MT-1 leaves the widest. (3) The yield of the tested lines varied from 1 863 to 3 380.85 kg / hm2. Output, output, average price and best-in-class performance is the best MT-2. (4) Cluster analysis showed that the comprehensive economic traits of MT-2, DZ-3, YQ-1, SX-1 and WY-1 were significantly better than other strains.