摘要
通过田间小区试验比较了云烟87、云烟97、云烟99、云烟203、PVH19、K326、KRK26和红花大金元8个烤烟品种的农艺性状、病虫害发生率、产量、产值和化学成分差异。结果表明:云烟203、KRK26有效叶数较高,云烟97和云烟99较低;叶面积系数则以云烟99、云烟203、红花大金元和云烟97相对较高,PVH19和云烟87相对较小。云烟99、云烟97、KRK26和红花大金元气候斑明显低于其余品种,而赤星病则以红花大金元、云烟87和云烟97相对高于其余品种。云烟87、云烟97和云烟99初烤烟叶产量、产值最高,而PVH19品种明显较低。云烟99、云烟97和KRK26初烤烟叶糖含量最高,烟碱含量接近适宜范围;糖/碱比以云烟99和KRK26最好,氮/碱比则以云烟99和云烟97最佳。综合田间农艺性状、气候斑和赤星病病情程度、烟叶产量、产值、化学成分等指标的分析结果,云烟99总体表现最好。
Field experiment was carried out to compare the differences in agronomic characters, incidence of diseases and insect pests, yield, output value and cfiemical composition among Yunyan87, Yunyan97, Yunyan99, Yunyan203, PVHI9, K326, KRK26 and Honghuadajinyuan. The results showed that the effective leaf number was higher in Yunyan203 and KRK26, but lower in PVH19 and Yunyan87; the leaf area index was higher in Yunyan99, Yunyan203, Honghuadajinyuan and Yunyan97, but lower in PVH19 and Yunyan87; the weather spot on Yunyan99, Yunyan97, KRK26 and Honghuadajinyuan was significantly less than that on other varieties, and the brown spot on Honghuadajinyuan, Yunyan87 and Yunyan97 was relatively higher than that on other varieties; the highest yield and output value of flue-cured tobacco were in Yunyan87, Yunyan97 and Yunyan99, but PVH19 had obviously lower yield and output value; the highest sugar content in flue-cured tobacco was in Yunyan99, Yunyan97 and KRK26, and theirs nicotine content was close to the appropriate range; the best ratio of sugar to nicotine was in Yunyan99 and KRK26, but the best ratio of nitrogen to nicotine was in Yunyan99 and Yunyan97. Therefore, comprehensive analysis of agronomic characters, occurrence degree of weather spot and brown spot, yield of tobacco leaves, output value, chemical composition and other indicators, the results showed that Yunyan99 was the best in overall performance.
出处
《湖南农业科学》
2012年第9期22-25,共4页
Hunan Agricultural Sciences
关键词
烤烟
品种
适宜性
抗病性
产质量
flue-cured tobacco
variety
adaptability
disease resistance
yield and quality
