Effects of water and temperature on the physiological potential of Albizia polycephala (benth) killip seeds

The significant presence of Albizia polycephala (Benth) Killip in various forest ecosystems highlights its potential to play a crucial role in biodiversity conservation and ecosystem stability. Understanding and promoting the use of this species can greatly contribute to the preservation and restoration of natural environments, as well as sustainable agricultural practices. Seed germination is a complex process influenced by several abiotic factors, notably moisture and temperature. These factors are critical, and under extreme conditions, they can cause irreparable damage to seeds. Therefore, this study aimed to assess the impact of varying water volumes in the substrate and temperatures on the physiological viability of A. polycephala seeds. The interaction between ecology and agriculture is essential to promote sustainable agricultural practices that respect natural ecosystems. Proper forest management can ensure biodiversity conservation and agroecosystem stability. Investing in agroforestry systems can contribute to the restoration of degraded landscapes, fostering harmonious coexistence between agricultural production and environmental preservation.The experiment was conducted at the Fitotechnology Laboratory, Campus of Engineering and Agricultural Sciences, Federal University of Alagoas (CECA-UFAL), in Rio Largo – AL. Treatments included water volumes equivalent to 1.5, 2.0, 2.5, 3.0, and 3.5 times the dry mass of the substrate, with constant temperatures of 30°C and alternating temperatures of 20-30°C. Substrates were not rewetted during the experiment. A completely randomized design (CRD) was employed, and when significance was observed in the F-test, means were compared using Tukey's test at a 5% probability level. Additionally, regression analysis was conducted to analyze quantitative effects. The alternating temperature regime of 20-30°C and a water volume of 3.5 times the mass of the dry substrate proved to be the most favorable combination for conducting germination and vigor tests of A. polycephala seeds. These findings can inform ecological restoration projects and agricultural strategies aimed at enhancing seed viability and supporting ecosystem resilience.