Khalid Al Hakimi*(1), Mohammed Al Yafrosy(1), and Ashraf Al Romaisah(1)
(1) Plant Production Department, Faculty of Agriculture and Food Sciences, Ibb University, Yemen.
(*Corresponding author: Khalid Al Hakimi, E-Mail: k_alhakimi@yahoo.com)
Received:28/02/2022 Accepted:26/06/2022
Abstract:
This study aimed to identify the effect of different concentrations of indole butyric acid IBA and Humic acid HA at rates (0, 200, 400, 600) and (0, 15, 30, 45) ppm, respectively, on the of sugar cane Saccharum officinarum L. In terms of rooting percentage, number of roots, length of roots, fresh and dry weight of roots, number of leaves/plant, number of stems/plant, plant height, fresh and dry weight of the vegetative growth. The experiment was carried out using randomized complete blocks (R.C.B.D) in three replications. The results of the experiment showed that soaking the cuttings in indole butyric acid IBA led to a significant increase in the rooting rate at a concentration of 200 ppm. The results also showed that the other of the studied traits were significantly affected, reaching the highest value with significant differences for the number of leaves, number of tillers, plant height, fresh and dry weight of the shoot system at concentration 400 ppm compared to the control, while the difference between the different concentrations of IBA did not reach the significant level. The results also showed that soaking the cuttings with humic acid led to a significant increase in all measures of root and vegetative growth studied, where the treatment of 30 ppm recorded the highest values with a significant superiority compared to the control.
Key words: Indole butyric acid IBA, humic acid HA, measures of root growth, measures of vegetative growth and sugar cane Saccharum officinarum L.
Full paper in Arabic: pdf