ANATOMY OF JAMBEIRO PLANTS FORMED THROUGH CUTTINGS IN A HYDROPONIC SYSTEM

Résumé

The jambeiro is a fruit tree widely valued in South and Central America, but commercial production of seedlings through seeds is limited because the seeds are recalcitrant and produced irregularly in the fruits. For this reason, propagation by cuttings becomes a viable alternative to obtain uniform and early seedlings. This work aimed to produce jambeiro seedlings through cuttings in a hydroponic system. Semi-woody and herbaceous cuttings were used, with the base of the cuttings immersed in a solution containing 2 g L-1 of Indole-Butyric Acid and immediately transferred to a tray containing a nutrient solution. After 60 days, leaves and roots
were collected for anatomical analysis. In the leaves, transverse sections of the leaf blade and abaxial and adaxial paradermis were obtained, and in the roots, transverse sections were obtained. It was found that the hydroponic system proved to be viable for the formation of jambeiro seedlings. Anatomical analyzes demonstrated adequate development of the shoot tissues and root system of the seedlings, suggesting that they have the potential to survive after planting in the field. This represents a significant contribution to the sustainable production of jambeiro seedlings, especially in reforestation and environmental conservation contexts.