02099naa a2200265 a 450000100080000000500110000800800410001902200140006002400430007410000250011724501170014226000090025950001350026852012160040365000120161965000200163165000170165165300150166870000160168370000200169970000210171970000170174070000180175777300580177521509472023-03-27       2022    bl uuuu     u00u1 u    #d  a0120-99657 a10.15446/agron.colomb.v40n1.940792DOI1 aSANTOS, J. R. P. dos  aDynamics of the weed community during pineapple growth in the Brazilian semi-arid region.h[electronic resource]  c2022  aTítulo em espanhol: Dinámica de la comunidad de malezas a lo largo del crecimiento de piña en la región semiárida brasileña.  aThe pineapple belongs to the family Bromeliaceae and is a slow-growing succulent monocot with a reduced superficial root system. For this reason, the interference of weeds in competition with this crop can cause significant losses to the production. One of the bases to elaborate a control strategy is the knowledge of the diversity of weeds that occur in the cultivated areas. The objective of this study was to identify the weed community during pineapple growth in a semi-arid climate region of Brazil. Weeds were collected 60, 120, 180, 240, 300, and 360 days after planting (DAP) the pineapple. These collections were made in three different plots every two months until floral induction, composed of three pineapple cultivars. The weed community found in the irrigated pineapple field, in semi-arid climate conditions, was mostly composed by species belonging to the families Amaranthaceae, Asteraceae, Convolvulaceae, Fabaceae, Malvaceae, and Poaceae. The highest diversity of weed species was found at 60 DAP. The species Ipomoea acuminata was present throughout the development of the pineapple and showed the highest importance value index in most of the periods evaluated during the pineapple growth.  aAbacaxi  aAnanás Comosus  aErva Daninha  aSemiárido1 aMAIA, V. M.1 aSILVA, B. S. da1 aDEMICHELI, P. M.1 aASPIAZÚ, I.1 aCONCENÇO, G.  tAgronomía Colombianagv. 40, n. 1, p. 109-119, 2022.