Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2018, Vol. 34 ›› Issue (17): 52-55.doi: 10.11924/j.issn.1000-6850.casb17080034

Special Issue: 烟草种植与生产

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Effects of Planting Density on Quality and Economic Characters of‘Yunyan87’in Kunming

  

  • Received:2017-08-08 Revised:2018-05-16 Accepted:2017-09-28 Online:2018-06-20 Published:2018-06-20

Abstract: To explore appropriate cultivation measures of flue- cured tobacco in Kunming, the effects of planting density on neutral aroma components, chemical components and economic characters were studied with field experiments. The results showed that, with the increase of planting density, the contents of total sugar, reducing sugar and potassium increased first and decreased later, contrary to the content change of nicotine and chlorine, and the content of total nitrogen increased. The contents of maillard reaction productions, carotenoid degradation productions, phenylalanine degradation products, cembranoids degradation products, chlorophyll degradation products and neutral aroma components in tobacco leaves were the highest in treatment T2(120 cm× 60 cm), and all showed a first increase and then decrease tendency with the increase of planting density. The economic characters of T2 had the best performance. Therefore, the planting density of 120 cm×60 cm is more appropriate for‘Yunyan87’in Kunming, and could be popularized and applied.