Study on screening cold-tolerant germplasm resources of melon at germi-nation stage
WEI Xiaomin
XU Wenlong
SHANG Jianli
ZHOU Dan
Abstract：To establish an efficient screening method for cold tolerance in melon and rapidly identify/utilize cold-tolerant germplasm resources,this study first used 7 melon accessions with different cold temperature tolerance,and determined 17 ℃ as the optimal temperature for low temperature screening during the germination stage.Subsequently,268 melon ac-cessions were evaluated at 17 ℃ to identify extreme cold-tolerant and cold-sensitive materials.Further analysis selected five highly tolerant and five highly sensitive materials to determine their photosynthetic rate.The results showed that the accessions with strong cold tolerance during germination maintained higher photosynthetic rate under low-temperature stress.This study ultimately identified 11 highly cold-tolerant accessions suitable for direct or indirect use in low-tempera-ture tolerance breeding.
Keywords：MelonGermplasm resourcesGermination stageCold tolerance
Publication Date：2025-08-05
Online Publishing Date：2025-09-01(First online date of this platform, not the publication date of the document)
Pages：6( 95-100 )