Authors : Jhoana Mechaela M. Adison; Angel S. Dagpin; Melliz Cecilia R. Ecija; Sheila Mae B. Junio; Jeiem Raian A. Manalo; Gecelene C. Estorico

Volume/Issue : Volume 11 - 2026, Issue 3 - March

Google Scholar : https://tinyurl.com/6vuvxtz4

Scribd : https://tinyurl.com/46v6cxbv

DOI : https://doi.org/10.38124/ijisrt/26mar1604

Note : A published paper may take 4-5 working days from the publication date to appear in PlumX Metrics, Semantic Scholar, and ResearchGate.

Abstract : Thermal stress is a major abiotic factor affecting species within the Poaceae family, yet its geographic impacts remain insufficiently explored. As global temperatures continue to rise, understanding how grasses respond to temperature extremes is increasingly important for agricultural productivity and ecosystem stability. This systematic review examined the effects of thermal stress on Poaceae species, with emphasis on growth and physiological responses. Following PRISMA guidelines, peer-reviewed English articles from multiple databases were screened, resulting in ten high-quality studies. Evidence certainty was evaluated using the GRADE framework to synthesize findings. Results indicate that temperature significantly affects growth, physiology, germination, and reproductive development in Poaceae species. Most grasses grow optimally within 20–30°C. High temperatures cause physiological stress, including reduced photosynthesis, increased leaf senescence, oxidative damage, and decreased grain yield in crops such as wheat and rice. Low temperatures slow metabolic processes but may also trigger protective responses, such as increased antioxidant production. Thermal tolerance varies among species, with some grasses showing greater adaptability to fluctuations. Heat stress can lead to sterility and yield loss, while cold stress delays flowering and disrupts pollination. Overall, thermal stress alters key physiological and developmental processes, emphasizing the need to maintain optimal temperature conditions.

Keywords : Temperature, Climate Change, Thermal Stress, Poaceae, Abiotic Stress, Heat Stress, Cold Stress, Plant Physiology, Growth Response, Germination, Photosynthesis, Oxidative Stress, Antioxidants, Crop Yield, Reproductive Development, Stress Tolerance, Phenology, Agricultural Resilience, Climate Adaptation, Cereal Crops.

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