摘要
为明确不同植物生长调节剂对禄劝九龙烤烟生长发育及产质量的影响,以'云烟87'为材料,于2022年4月25日—9月1日在禄劝县九龙镇进行试验,设清水(D0)、多肽保(D1)、苄氨·赤霉酸(D2)、绿施达(D3)、芸苔素内酯(D4)、胺鲜酯(D5)共6个处理,在移栽后0、30、60d外源喷施处理药剂,调查并分析烤烟的生育期、农艺性状、病害情况、光合特性以及烤后烟叶经济性状和化学成分.结果表明,D1处理生育期最短,农艺性状表现最优;D4处理发病率最低,较D0处理烟草普通花叶病发病率低55.84％,烟草黑胫病发病率低57.05％;D4处理光合特性指标最优,较D0处理净光合速率增加0.68 μmol/(m2·s),气孔导气度增加0.05 mol/(m2·s),胞间CO2浓度增加1.15 μmol/m2,蒸腾速率增加0.02 mmol/(m2·s);D1处理外观质量表现及评分最佳,与其他处理相比,产量、均价、产值均显著增加,化学成分协调及评分较高.综上所述,合理施用多肽保可有效促进烤烟生长发育,增强烤烟抗病性,促进烤烟品质的提升.
Abstract
In order to clarify the effects of different plant growth regulators on the growth,development,yield and quality of flue-cured tobacco in Jiulong Town of Luquan County,'Yunyan 87'was used as the material,and six treatments were set up,including water(D0),polypeptide(D1),benzylamine gibberellic acid(D2),lvshida(D3),brassinolide(D4)and aminoethyl hexanoate(D5).The growth period,agronomic traits,diseases,photosynthetic characteristics of flue-cured tobacco,economic traits and chemical composition of flue-cured tobacco leaves were investigated and analyzed at 0,30,60 d after transplanting.The results showed that D1 treatment had the shortest growth period and the best agronomic traits.The incidence of D4 treatment was the lowest,which was 55.84％ lower than that of D0 treatment,and the incidence of tobacco black shank was 57.05％ lower than that of D0 treatment.Compared with D0 treatment,the net photosynthetic rate of D4 treatment increased by 0.68 μmol/(m2·s),stomatal conductance increased by 0.05 mol/(m2·s),intercellular CO2 concentration increased by 1.15 μmol/m2,and transpiration rate increased by 0.02 mmol/(m2·s).The appearance quality and score of D1 treatment were the best.Compared with other treatments,the yield,average price and output value were significantly increased,and the chemical composition coordination and score were higher.In summary,the rational application of polypeptide can effectively promote the growth and development of flue-cured tobacco,enhance the disease resistance of flue-cured tobacco,and promote the quality of flue-cured tobacco.
基金项目
河北中烟工业有限责任公司科技项目(2022130000340019)
维普
万方数据