Peasant agroecology faces limitations in commercial visibility and institutional recognition despite its contributions to ecological, food and cultural sustainability. This article analyses the participatory construction of a territorialised collective brand within the Red de Soberanía Alimentaria de Productores Indígenas de la Montaña de Guerrero, Mexico (SAPIGro), and systematises the Territorialised Collective Brand Model (TCBM). The research was conducted in 2024 with 18 families from seven rural Indigenous communities using a participatory action research strategy that combined symbolic co-design workshops, participant observation, documentary analysis and Frederic Vester’s systemic analysis matrix to identify critical variables within the local agri-food system. The results show that the TCBM is structured around four interrelated dimensions: identity, organisational, productive and commercial–symbolic. Cultural identity operates as a regulatory variable, while organisational capacities and market access constitute critical variables. The collective brand functions as a social innovation and symbolic territorialisation mechanism that strengthens community agency, revalues Indigenous agroecological food systems, and provides transferable methodological inputs for rural development policies and strategies grounded in territoriality and solidarity-based economies.

Understanding the impact of hydric stress on medicinal plants in the context of climate change is becoming increasingly important. This study aimed to assess the quality of a seed lot of Agastache mexicana subsp. mexicana (Amm) through a novel calculation of the Vigour Index on time basis (${VI}_T$). The evaluation was based on relationships among plant height, leaf number, survival time, and plant density across six irrigation regimes, referred to as stages, which differed in the timing and quantity of water, designed to impose water stress from seedling emergence until plant death. To maximise growth and survival time, we utilised two input factors: Artificial Shade Levels (ASLs) of 38%, 87%, and 94%, as well as Silicon Dioxide Levels (SDLs) of 0.0%, 0.2%, 0.4%, and 0.8%. The effects of these treatments were measured using the Survival Index (SI) and the ${VI}_T$. The plants achieved their highest SI and ${VI}_T$ values influenced by minimum mortality and maximum height and leaf number in stage three. This behaviour aligned with the field capacity of the substrate, supporting the evaluation of stages one and two as waterlogging stress, while the remaining stages were classified as drought stress. The ${VI}_T$ results showed statistically significant effects from ASL, particularly at 94%. However, the ${VI}_T$ in relation to SDL was not statistically significant. The ${VI}_T$ measurements were visualised using spline interpolation, a method that provides an effective approach to quantify adverse conditions affecting Amm’s development and that it can support to identify the hydric stresses type.