Scientia Agricultura Sinica ›› 2006, Vol. 39 ›› Issue (04): 772-778 .

• HORTICULTURE • Previous Articles     Next Articles

Evaluation of Salt Resistance of Cucumber at Seed Germination and Rootstock-Seedling Stages

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  1. 华中农业大学园艺林学学院,园艺植物生物学教育部重点实验室
  • Received:2005-10-27 Revised:1900-01-01 Online:2006-04-10 Published:2006-04-10

Abstract: 【Objective】Salt resistance ability screening of different genotypes of cucumber (scion) and rootstock is the basis research work for the evaluation of salt resistance ability. 【Method】Salt resistance of 20 cucumber cultivars at seed germination stage and 22 species of rootstocks at seedling stage were evaluated by using cluster analysis. Relative trend of germination, relative percentage of germination and relative germination index of cucumber seed and salt injury index of rootstock were used to detect the salt resistance of cucumber seeds and rootstock. 【Result】Zaoduojia, Huazao 2, Zhongnong 8, Jinyu 1 and Jinyou 3 held high resistance to salt stress, whereas Jinguan 1, Xuyou 1, Jinchun 5, Jinchun 4, Dongfangmingzhu, Xiangzao 3, Tezao 1 and Jinyou 1 were moderately salt tolerant, but Baipihuanggua, Ningfeng 8, Meinong 4, Jinchun 3, Jinza 4, Jinza 2 and Jinchun 2 cucumber cultivars were sensitive to salt stress. Rootstocks could be clustered to two groups, Cucurbit pepo L. cv. Chunbaiyu, Zaoqingyidai and Jizao xiuyu, Cucurbita moschata Duch. cv. Tiejiangjun F1were sensitive to salt stress whereas the other species of rootstocks were tolerant to salt stress, and salt resistant rootstocks could be clustered to three subgroups, Lagenaria siceraria Standl. var. clavata Makino cv. Xiaoganhugua, Tongxinhugua, Hanlongbiyu and Chaofeng8848 showed the highest salt resistance, Cucurbit ficifolia cv. Heizinangua exhibited tolerant, whereas the other thirteen species showed more salt resistance. 【Conclusion】Salt resistance ability varied with different genotypes of cucumber(scion) and rootstock, and the salt resistance ability of cucumbers and rootstocks could be screened at germination stage and seedling stage, respectively.

Key words: Cucumber (Cucumis sativus L.), Salt resistance ability, Rootstock, Salt injury index, Cluster analysis

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