Photosynthesis of Flue–Cured Tobacco (Nicotiana Tabacum L.) Plants Subjected to Different Fertilization Rates in Huila, Colombia

Veronica Hoyos; Guido Plaza; Stanislav Magnitskiy

Volume : III, Issue : IX, September - 2014

Photosynthesis of Flue–Cured Tobacco (Nicotiana Tabacum L.) Plants Subjected to Different Fertilization Rates in Huila, Colombia

Veronica Hoyos, Guido Plaza, Stanislav Magnitskiy

Abstract :

A balanced management of nutrients in a crop involves several aspects, such as the application of the essential elements for crop growth, taking into account the soil conditions that influence their availability, time, sources and doses according to crop needs. The lack of any of these elements has both direct and indirect effects. The aim of this study was to evaluate physiological parameters, such as photosynthesis (Pn) and maximum efficiency of the photosystem II (Fv/Fm), depending on the nutritional status of tobacco (Nicotiana tabacum L.) plants in the municipalities of Campoalegre and Garz�n in the province of Huila, Colombia. The photosynthesis was primarily affected at the initial stages of the crop. Net photosynthesis, and maximum PSII efficiency of tobacco were affected mainly by the location evaluated. The fertilizer application rate influenced the Fv/Fm, and the fertilization source influenced Pn, y Fv/Fm.