农学学报2017，Vol.7Issue(12)：65-69,5.
烟草品种和打顶时期对烟草赤星病发病情况的影响
Influence of Varieties and Topping Time on Tobacco Brown Spot Morbidity
贺刚 1廖衡斌 1李文宇 1朱旭东2
作者信息
- 1. 祁东县烟草公司,湖南衡阳421600
- 2. 湖南农业大学农学院,长沙410128
- 折叠
摘要
Abstract
The paper aims to explore the relation of morbidity degree of brown spot with varieties and topping time of tobacco. An experiment was conducted with the split plot design to study the effect of different varieties and different topping time on morbidity degree of brown spot. Three varieties ('Yunyan 87','Yunyan 97'and'K326') were taken as the main plot, and three topping methods (at squaring stage, initial flowering stage and full-bloom stage) were adopted as the split plot. The results showed that:'Yunyan 97'displayed the strongest resistance to tobacco brown spot, followed by'K326', and'Yunyan 87'had the weakest resistance. Topping at full-bloom stage had the best control effect on tobacco brown spot morbidity for'Yunyan 87'and'K326', and topping at initial flowering stage had the best effect for'Yunyan 97', while topping at squaring stage had the worst effect. According to the practical situation of tobacco planting area in Qidong and with overall consideration of tobacco yield and quality, the optimum way is topping at initial flowering stage for'Yunyan 97','Yunyan 87 'and'K326'.关键词
烟草赤星病/打顶时期/品种Key words
Tobacco Brown Spot/Topping Time/Variety分类
农业科技引用本文复制引用
贺刚,廖衡斌,李文宇,朱旭东..烟草品种和打顶时期对烟草赤星病发病情况的影响[J].农学学报,2017,7(12):65-69,5.
