02037naa a2200337 a 450000100080000000500110000800800410001902200140006002400680007410000200014224501480016226000090031052009510031965000150127065000370128565000160132265000270133865000100136565000190137565300280139465300260142265300150144870000180146370000200148170000220150170000230152370000200154670000200156670000220158677300910160821511832023-03-27       2023    bl uuuu     u00u1 u    #d  a1807-19297 ahttp://dx.doi.org/10.1590/1807-1929/agriambi.v27n5p335-3422DOI1 aGOMES, V. H. F.  aProduction, gas and biochemical exchanges in pear cultivated in semi-arid region under different irrigation managements.h[electronic resource]  c2023  aThe objective of this study was to evaluate the influence of irrigation systems and water depths on physiological, biochemical and production processes of pear trees grown in the Brazilian semi-arid region. The experimental design was randomized blocks, with 2 × 4 factorial scheme, corresponding to two irrigation systems (drip and microsprinkler) and four irrigation depths (60, 80, 100 and 120% of the crop evapotranspiration - ETc), with four replicates. Water deficit and excess applied to plants are harmful to gas exchange as well as to biosynthesis and accumulation of carbohydrates, amino acids and proteins in leaves, compromising the cultivation cycle of pear plants grown in the Sub-Middle São Francisco region. The irrigation depth of 91.8% ETc promotes the highest production of pear (18.49 kg plant -1) under drip and microsprinkler irrigation systems, under the edaphoclimatic conditions of the Sub-Middle São Francisco region.  aIrrigation  aPlant Science and Plant Products  aIrrigação  aIrrigação Localizada  aPêra  aPyrus Communis  aLâminas de irrigação  aManejo de irrigação  aSemiárido1 aSIMOES, W. L.1 aSILVA, J. S. da1 aGARRIDO, M. da S.1 aSILVA, J. A. B. da1 aLOPES, P. R. C.1 aSILVA, W. O. da1 aSANTOS, L. R. dos  tRevista Brasileira de Engenharia Agrícola e Ambientalgv. 27, n. 5, p. 335-342, 2023.