Abstract: [Objective] This project aims at studying the effects of different concentrations of sea water on the germination of muskmelon seeds, exploring the tolerance to salt in the hope of providing the foundation for selecting and breeding salt tolerant melon varieties and utilizing seawater resources and beach land.[Method]Using petri dishes sprouting method, the effects of different concentrations of seawater-stress on germination rate, germination potential, germination index, average germination speed of seven varieties melon seeds were studied.[Result]The results showed that low concentration seawater could promote Jinmi 6 muskmelon and Hongsucui melon seed germination;A high concentration of seawater-stress had inhibitory effects on melon seed germination ability;With the increase of seawater concentrations, the inhibitory effects were strengthened.Different varieties of melon seeds have different salt tolerance.Considering the 4 indexes of germination rate, germination potential, germination index and average germination speed of muskmelon seeds, Muskmelon Jinmin 6 was the most salt-tolerant variety, and Xizhoumi17 was the weakest one.[Conclusion]After comparing and studying, the seed salt tolerance of Jinmin 6 is better, and it can be planted in salt stress area.

摘要： [目的]研究不同浓度海水对甜瓜种子萌发的影响,分析甜瓜种子对盐的耐受能力,为筛选培育耐盐甜瓜品种,利用海水资源及滩涂地奠定基础.[方法]以7种种植广泛的优良甜瓜品种种子为试验材料,采用培养皿发芽法,研究不同浓度海水胁迫对种子发芽率、发芽势、发芽指数、平均发芽速度的影响.[结果]低浓度海水可以促进金蜜六号和红酥脆品种甜瓜种子萌发.较高浓度海水胁迫对甜瓜种子的发芽能力有抑制作用,随着海水浓度的增加抑制作用加强.不同品种甜瓜种子的耐盐性不同,综合甜瓜种子的发芽率、发芽势、发芽指数、平均发芽速度4个指标来看,金蜜六号为最耐盐品种,西州密17号为最不耐盐品种.[结论]金蜜六号甜瓜种子耐盐性较好,可在盐胁迫地区种植.