Assessing Heat Tolerance in Creeping Bentgrass Lines Based on Physiological Responses.

ABSTRACT: Heat stress is a major concern for the growth of cool-season creeping bentgrass (Agrostis stolonifera L.). Nonetheless, there is a lack in a clear and systematic understanding of thermotolerance mechanisms for this species. This study aimed to assess heat tolerance in experimental lines and cultivars to determine important physiological and biochemical traits responsible for improved tolerance, including the use of OJIP fluorescence. Ten creeping bentgrass lines were exposed to either control (20/15 °C day/night) or high temperature (38/33 °C day/night) conditions for 35 d via growth chambers at Griffin, GA. Principal component analysis and clustering analysis were performed to rank stress performance and divide lines into different groups according to their tolerance similarities,

SUBMITTER: Fan Q 

PROVIDER: S-EPMC9824340 | biostudies-literature | 2022 Dec

REPOSITORIES: biostudies-literature