Influence of tapping dates and tapping directions on “talih” gum yield from Acacia seyal Del. var. seyal. in the Blue Nile State, Sudan

Ammar Fadlalla Gessmalla and Amin A. Al Sir

Net Journal of Agricultural Science
Published: August 15 2016
Volume 4, Issue 3
Pages 45-49

Abstract

Acacia seyal Del. var. seyal is an important multipurpose tree in the savanna zone of Blue Nile State. The tree produces “talih” gum, which is collected from the natural exudation. However, a little information is available about the tapping possibility of the tree. The objectives of the study were to determine the effect of tapping dates and tapping directions on Acacia seyal Del var. seyal “talih” gum yield. Therefore, a randomized complete block design was used, three tapping dates (1^st November, 15^th November and 1^st December). Three treatments or directions of tapping were selected, the first direction (East-West), the second direction (North-South), and the third in all direction of tree circumference of stem as control. Diameter of tapped trees was >15 cm, 14 to 15 incisions were done per tree, the space between the incisions was 20 to 25 cm, axe was used for tapping. The results revealed that there were a significant differences between the means of gum yield at the first dates of tapping 1^st November and the other two dates of tapping (15^th November and 1^st December), and also there were a significant differences between the means of gum yield at the directions of tapping, first direction of tapping (East-West) ranked a higher gum yield compared to the other two directions of tapping (North-South) and control.

Keywords: Tapping, Acacia seyal, “talih” gum, natural exudates, incisions.

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