Abstract
The influence of the stage of topping and the planting distance as they influenced agronomic and chemical characters during the years 1974–1976 was studied on cigarette tobacco. The plants were spaced 41, 51 and 61 cm in the row, 122 cm between rows. The tobacco was topped at the early button stage, the button stage and at 25% flowering. A planting distance of 41 cm with early topping produced the best results, taking into consideration both agronomic and chemical factors. Early topping had no significant effect on yield, grade index, maturity index and percentage of reducing sugars. Late topping reduced revenue, percentage of nicotine, total alkaloids and total nitrogen. Close planting in the row increased yield and revenue while it decreased the level of total alkaloids and total nitrogen and had no significant effect on the other parameters studied.
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