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Effect of figleaf gourd as stock on physiological characteristics of grafted cucumber under low temperature



Effect of figleaf gourd as stock on physiological characteristics of grafted cucumber under low temperature



Journal of Plant Resources and Environment 16(2): 48-52



Using cucumber ( Cucumis sativus 'Jinyan No. 4') as ingraftnent and cucumber and figleaf gourd ( Cucurbita ficifolia Bouche) as stocks, the tolerance of own-rooted and grafted cucumbers to low temperature was evaluated. Contents of sucrose ( Sue), glucose ( GIc) and soluble protein ( Pr) in leaf and content of isopentenyl adenosin ( WA) in stem and leaf were determined respectively, and carboxylation efficiency ( CE) was calculated. The results showed that Sue, Glc, Pr and CE in cucumber/figleaf gourd grafted plant were higher than those in own-rooted and cucumber/cucumber grafted plants. The iPA distributed with a gradient in stem of both grafted and own-rooted plants, iPA content was the highest in stem apex, followed by upper stem segments, and then lower stem segments. The 1PA content in stem of both own-rooted and cucumber/cucumber grafted plants was less than that of cucumber/figleaf gourd grafted plant, while 1PA content in leaves of both own-rooted and cucumber/ cucumber grafted plants was higher than that of cucumber/figleaf gourd grafted plant. It is suggested that the tolerance of grafted cucumber to low temperature is enhanced while figleaf gourd as stock is used.

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Accession: 015603282

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