heat-tolerance
Heat-tolerance in plants refers to the ability of plant species to maintain normal physiological and developmental processes under elevated temperature conditions. As global temperatures rise, heat stress has become a critical factor limiting crop productivity and quality worldwide, making the study and breeding of heat-tolerant varieties essential for food security. Understanding the genetic and molecular mechanisms underlying heat tolerance enables researchers and breeders to develop cultivars better adapted to increasingly challenging climate conditions.
open_in_new WikipediaPubMed · 2026-05-03
Researchers found that combining moderate water stress with standard growing temperatures (25–35°C) actually boosted seed yield, oil content, and stress resilience in two herb species used as food and medicine crops. One species excelled at producing seeds and oil, while the other was better at defending itself biochemically against stress.
Moderate drought combined with standard temperature (25–35°C) produced the highest seed yield, germination rates, and fatty acid levels in both species.
Lallemantia iberica outperformed L. royleana in seed yield by 10.1%, oil content by 13%, and linoleic acid content by 61.3%.
L. royleana showed stronger biochemical stress defenses, with 46.5% higher catalase activity and 20.4% more total phenols than L. iberica.