02251naa a2200301 a 450000100080000000500110000800800410001902200140006002400520007410000200012624501620014626000090030852013430031765000190166065000160167965000100169565000170170565000160172265000240173865000120176265300220177465300230179665300230181965300180184270000170186070000180187777300540189521549332023-07-13       2023    bl uuuu     u00u1 u    #d  a2317-15457 ahttps://doi.org/10.1590/2317-1545v452641662DOI1 aGOMES, S. E. V.  aClimate and seed size of a dry forest speciesbinfluence on seed production, physiological quality, and tolerance to abiotic stresses.h[electronic resource]  c2023  aSeed production, quality and germination are likely to be affected by a drastic climate change in semi-arid areas predicted for the end of the century. We evaluated Anadenanthera colubrina var. cebil (Griseb.) Altschu (Fabaceae) seeds of different sizes, populations and harvest years for germination and tolerance to environmental stresses aiming to predict impacts of future climate. Seeds were accessed for germination temperature, salinity and osmotic limits and requirements. Germination of large and small seeds harvested in different populations was evaluated in optimum and stressful temperature, salinity and water deficit. A glasshouse pot assay tested weekly irrigation regimes and seedlings emergence and growth. Optimal temperature for seeds germination was 34.8 oC and limits were 5.6 oC and 50.9 oC. Large and small-sized seeds do not differ in germination, however small seeds are more efficient in stressful conditions. Seedlings can emerge and grow under small weekly irrigation for four months. The predicted increase in temperature will not impair germination, however, the time available for seedling establishment will decrease due to lacking rainfall. The increase in the amount of small-sized seeds produced in drought years is a strategy for coping with harsh environments, rather than a decrease in seed quality.  aClimate change  aGermination  aSeeds  aGerminação  aIrrigação  aMudança Climática  aSemente  aEstresse abiotico  aEstresse ambiental  aSementes de angico  aSoma térmica1 aGOMES, R. A.1 aDANTAS, B. F.  tJournal of Seed Sciencegv. 45, e202345013, 2023.