甜瓜萌芽期耐低温种质资源的筛选

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中图分类号：S652 文献标志码：A 文章编号：1673-2871（2025）08-095-06

Study on screening cold-tolerant germplasm resources of melon at germination stage

WEIXiaomin'，XUWenlong'，SHANGJianli²，ZHOUDan² （1.InstituteofalrouctQuaitydfetyholoHnanUesityfialHusandryndonomo 450046Heathiutedeale China）

Abstract：Toestablishanefficientscreening methodforcoldtolerance inmelonandrapidlyidentify/utilizecold-tolerant germplasmresources，this study firstused7melonaccessions with differentcold temperature tolerance，anddetermined 17∘C as the optimal temperature forlow temperature screening during the germination stage.Subsequently，268 melon accessionswere evaluated at 17∘C toidentify extreme cold-tolerant and cold-sensitive materials.Further analysis selected fivehighlytolerantandfivehighlysensitive materials todeterminetheirphotosyntheticrate.Theresultsshowedthatthe accessions with strong cold tolerance during germination maintained higher photosynthetic rate under low-temperature stres.Thisstudyultimatelyidentified1lhighlycold-tolerantaccessionssuitablefordirectorindirectuseinlow-temperature tolerance breeding.

Keywords：Melon;Germplasm resources;Germination stage;Cold tolerance

甜瓜（CucumismeloL.）作为葫芦科重要的经济作物之一，因其丰富的营养价值、独特的风味和广泛的适应性，在全球范围内具有重要的经济价值和市场需求。（剩余6895字）