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Fazli Karim, Muhammad Shahid, Khalid Gohar Khan and Saleem Khan, 1999. Influence of Topping Stages and Levels on Chemical
Characteristics of Flue-cured Virginia Tobacco. Pakistan Journal of Biological Sciences, 2: 148-150.
DOI: 10.3923/pjbs.1999.148.150
URL: https://scialert.net/abstract/?doi=pjbs.1999.148.150
DOI: 10.3923/pjbs.1999.148.150
URL: https://scialert.net/abstract/?doi=pjbs.1999.148.150