Western Australia, Tobacco, Sucker growth, Tobacco topping, Synthetic plant hormones
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Experiments conducted overseas and elsewhere in Australia have shown that the application of mineral oils to the cut surface of the tobacco stem after topping (removal of the flower head) have reduced the amount of sucker growth of tobacco plants. Previous experience in Western Australia has shown that the most appropriate time for topping of tobacco crops has been after the first leaf has been harvested. This operation has the effect of putting more body and width into the tip leaves, which, without topping, tend to be narrow and comparatively light in weight. With late planted crops, however, crops are generally left untopped, since the topping operation tends to retard the ripening of leaf by several weeks, although, after this period, the leaves ripen more rapidly and evenly.
Haney, T G.
"The prevention of sucker growth of tobacco after topping,"
Journal of the Department of Agriculture, Western Australia, Series 3: Vol. 1
, Article 33.
Available at: https://researchlibrary.agric.wa.gov.au/journal_agriculture3/vol1/iss4/33