播期和移栽期对烤烟‘豫浓香201’生长发育及品质的影响

打开文本图片集

Abstract：Thisstudyexploredtheefectofsowingandtransplantingdatesonthegrowth，development，qualityandyieldofthe flue-curedtobacovarietyYunongxiang21mingtodeteethebestcultivationpattnforthisvarietyinXuchag.Aadom block design was adopted with four treatments： early sowing and early transplanting （T1） ， early sowing and late transplanting （T2） ，late sowing and early transplanting （T3） ， and late sowing and late transplanting （T4） . The growth period， disease occurrence， agronomic traits，cooc raitsndontetfoutiicalompoentsdutralroaompoetseredeteidforchtratet while the apperance and sensory quality of flue-cured tobacco were evaluated. The results showed that T1 had a low proportion of highgrade leaves and poor sensory quality of tobacco. T2 had high appearance and sensory quality， the highest average tobacco price （31.05 yuan/kg）， but a low yield and output value. T3 had high comprehensive score of the appearance quality， but presented early flowering， and its output value was the lowest among the treatments. T4 showed the best comprehensive performance， no early flowering，a low disease incidence in the field，and the highest yield 2298.75kg/hm2 and output value （ 69 950.96yuan/hm2 ）.Moreover，it demonstratedthebestchemicalcomponntcoordination，ndthehghesttotalcontentofneutralaromacompoundsintheiddleand upperleaves，which increased by 23.93% and 17.18% ，respectively，comparedwiththat in thelowestleaves.Inaddition， T4 had the highestotalsensoryscore.Inconlusion，itwassuggestedthatthecultivationmodeoflatesowingandlatetansplanting（sowing on March6andtransplantingonMay10）withaseedling stageof65dshouldbedemonstratedand promotedintheproductionof 'Yunongxiang 201' in Xuchang.

Keywords：flue-curedtobaco;Yunongxiang2Ol;sowingdate;transplantingdaterowthanddevelopment;tobaccoleafqualiy

烤烟‘豫浓香201’是近年来新选育的品种，该品种生育期短、成熟集中、易烘烤，是黄淮烟区的优势替代品种[1，其生长发育及品质是自身遗传特性、生态环境和栽培措施等因素共同作用的结果。（剩余7166字）