Comprehensive evaluation of new flue-cured tobacco varieties in Yibin
This study screened high-quality flue-cured tobacco varieties suitable for planting in Yibin tobacco area of Sichuan Province,and provided a scientific basis for the reserve,promotion and application of new varieties.Taking Yunyan 87 as the control,the differences in growth period,agronomic traits,disease resistance,economic traits and tobacco leaf quality of new flue-cured tobacco varieties(lines)Yunyan 121,Xiangyan 7,Zhongchuan 208 and SC3262 were analyzed and compared,and the grey correlation degree was used to conduct a comprehensive evaluation.The results showed that the growth period of SC3262 and Xiangyan 7 was slightly longer,the effective leaf number of Xiangyan 7 was more,the leaves of SC3262 were broader,Zhongchuan 208 had better resistance to tobacco virus diseases,Xiangyan 7 had better resistance to tobacco rhizome diseases,Xiangyan 7 and SC3262 had higher yield and output value,and Xiangyan 7 had better comprehensive quality.The results of grey correlation degree showed that Xiangyan 7 had the best comprehensive trait,followed by Zhongchuan 208,which was suitable for planting in Yibin tobacco area,which could be further demonstrated and verified,and the cultivation technology research should be carried out.
万方数据
维普
