Document Type: Original Article


1 M.Sc. Student in Agronomy, Islamic Azad University, Naragh, Iran

2 Ph.D. in Agronomy, Department of Agricultural Sciences, Payame Noor University, I.R. of Iran


Topping stage of tobacco is a key time for development of agriculture measures to promote the quality of leaves. In order to investigating influence of topping timing and suckericide content on tobacco leaf, a factorial experiment on the basis of RCB design with 3 replications was conducted in 2011 at the Tobacco Research Farm of Isfahan. Treatments were including topping time (T1: topping at early button and T2: at early flowering), Prim+ content (A1:8, A2:10, A3:12, A4:14 ml/per plant) and Prime+ concentration (C1: 1.35%, C2: 1.5%) are first, second and third factors, respectively. Results showed that, effects of topping timing and Prim+ content were significant for number of suckers, fresh and dry weight of suckers and leaf area of tobacco. Dry weight and leaf length of tobacco were significantly affected by different Prim+ concentrations. Topping at early button resulted in deduction of suckers in tobacco, consequently caused to production of lower sucker weight and higher tobacco leaf area. Moreover, application of higher concentration of Prim+ at early button stage had considerably better effects on sucker growth control and tobacco leaf quality. This result clearly indicated that topping at early growth stage and controlling sucker growth with using suckericide enhanced tobacco leaf quality in the field


Bawolska M,LisZ(1988). The importance ofcultivar and of topping and suckering practicesin the production of flue-cured tobacco grownat wide spacings. PamietnikPulawski. 92: 45-60.

Czubacka A,Doroszewska T,Trojak-Goluch A (2012). Agronomic characteristics of transgenic tobaccodoubled haploids resistant to Potato virus Y Journal of Food, Agriculture and Environment. 10 (4):374-378.

Gooden DT, Brown AB, Ellington G, Fortnum BA, Marshall MW, Reay-Jones F (2011). South Carolinatobacco growers’ guide.Pp: 90Guo H, Kan Y, and Liu W, 2011. Differential expression of miRNAs in response to topping in flue-curedtobacco (Nicotianatabacum) roots.Plos one. 6 (12): 1-15.

Gregor Z,DubravecK,BajketM(1992). Effect ofgrowth retardants on sucker growth anddevelopment in burley tobacco. PoljoprivrednaZnanstvenaSmotra. 57: 209-215.

Hao J, Chao yang C (2001). Effects of topping and leaves remained on the yield and quality of flue-curedtobacco variety K326. Journal of Fujian Agricultural University.2001-2003.

Hu GS, Li ZY, Mu L, Han JF (2000).Studies on characteristics of nicotine accumulation in NicotianatabacumL. China Tobacco Journal. 6(2): 6-9.

Kara SM, Esendal E (1996). Correlatron and path analysis for yield and component in Turkish tobacco. Tob.res.22:101-104.

Mahadevareddy M, PanchalCY,JanardhanVK,ManjunathS,KotiVR (1990). Effects ofdifferent methods of application ofsuckericides on sucker growth, leaf yield andquality in bidi tobacco. J. Maharashtra Agric.Univ. 15:201-204.

Pandeya RS, Rosa N,Wite FH, Elliot JM (2001).Rapid estimation, of some flue-cured tobacco chemicalcharacteristics by infrared–reflectance spectroscopy.Tobacco science. 22:27-31.

Patel BK, ChavdaCJ,ParmarJD (1996).Efficacy of different promising suckericidesand their combinations for sucker control inbidi tobacco. Tobacco Res. 22: 120-125.

Reed TD, Johnson CS, Semtner PJ, Wilkinson CA (2012).Flue-cured tobacco production guide.Incooperation with the Virginia Bright Flue-Cured Tobacco Board.Pp: 140.

Roton C,Wiernik A, Wahlberg I, Vidal B (2005). Factors influencing the formation of tobacco-specificnitrosamines in french air-cured tobaccos in trials and at the farm level. BeitragezurTabakforschungInternational/Contributions to Tobacco Research. 21: 305-320.

Singh KD, Tripathi SN, Pandey AK (2000). Influence of topping on yield, physical leaf quality parametersand economic return in chewing tobacco. Tobacco Research. 1999. P: 61.

Woltz WG, Mason DD (1966). Effects of plant spacing and height of topping of bright tobacco on someagronomic characteristics.Proc. 4th Intern.Tobacco SciCongr. Athens, Greece. pp. 197-207.

Yi JH, Jia ZH, Sun ZJ (2006). Effect of the topping time on the root growth and the content of nicotine ofFlue-cured tobacco.Journal of Anhui Agriculture Science. 34(12): 2762- 2777.