EFFECTIVENESS TEST OF THE MULTIPLICATION TECHNIQUE OF PINEAPPLE DISCHARGES (ANANAS COMOSUS) ON THREE GROWING SUBSTRATES

The trial focused on the multiplication of pineapple suckers obtained from their cut stems and grown in trays under 3 treatments with 4 repetitions. The objective of the trial is to test the efficiency of the multiplication of pineapple shoots on the three culture substrates. The experimental device is completely randomized. The T1 treatment consists of cow dung, decomposed plant debris, landfill sand, coarse coconut fibers and those partially powdered. The T2 treatment consists of coarse coconut fibers and those partially powdered. The T3 treatment consists only of white sawdust. The results obtained showed that, 30 days before weaning, the high number of rejections (7.62±2.25) was obtained from the T1 treatment. The pineapple stems of treatments T2 and T3 gave respectively 5.56±2.06 and 6.69±3.38 rejections. At the 4th weaning, the rods of the T1 treatment gave more rejections (10.50 ± 1.29) than those of the T2 and T3 treatments which gave only 8.25 ± 0.96 and 9.50 ± 1 respectively 29 rejections. The suckers of the T1 treatment produced more leaves (22.75±0.96) on the 60th day after the 4th weaning than those of the T2 and T3 treatments which produced only 20.25±0.5 and 22± respectively. 0.82 sheets. They also weighed more (69.57±0.99g) than those of the T2 and T3 treatments which each gave 49.57±1.87g. Thus the approach of the T1 substrate improved the number of suckers, that of the leaves as well as the mass of the suckers.