Effect of Covering Mode and Substrate on the Rooting of Marcots of <i>Anacardium occidentale</i> L. in the Sahelian Zone (Maroua, Cameroon)

Anacardium occidentale is one of the most popular fruit trees in dry tropics. Unfortunately, several genotypes this species face problem productivity and low variability. The objective study to contribute improvement agronomic potential by aerial layering Diamaré. Specifically, effect covering mode substrate on rooting marcots were evaluated. work consisted carrying out a 7 cm girdling orthotropic branches having diameter ranging from 2.54 5.73cm, then sleeves laid. Three substrates used: sawdust previously decomposed, sawdust/black soil mixture (in proportion One-half) black soil. mantles covered with aluminum foil polyethane plastic. experimental design used was split plot three replications. constituted main treatment, mode, sub- treatment. unit 15 marcots. rate ranged 98.88±2.24% aluminium 99.44±1.66% those As for substrate, it varied 98.33±2.58% composed 100% mixture. No significant difference recorded between modes (P ≥ 0.05) also (P≥ 0.05). However Root length significantly (p≤ 0.01) 49.6±13.32mm 72.5±23.39mm All treatments satisfactorily. A. shows good ability. These results are useful process species.