Effect of Temperature Change on Cold Resistence of Tomato Seedlings

doi:10.3321/j.issn:1000-7091.1999.03.015

Abstract

Abstract: Tomato seedlings which have been risen in low (15℃) , Medium (20℃) and high temperature (25℃) were put into same condition (25℃) before set in field. In order to find change of cold resistance, the content of proline, binding water and free water were determined. The results were as follows: Cold resistance of tomato seedlings was better when it was rosen in low temperature, weak when it was rosen in medium temperature and weakest when it is rosen in high temperature. But the cold resistance of seedlings of three treatments declined rapidly after temperature was changed into high temperature, especially the seedlings rose in low temperature, the cold resistance of seedlings of three treatments was no obvious difference before they were set in field.

Key words: Tomato, Cold Resistance, Proline, Low temperature treatment

Sun Deling, Fang Wenhui, Zhang Baozhen, Li Suwen. Effect of Temperature Change on Cold Resistence of Tomato Seedlings[J]. ACTA AGRICULTURAE BOREALI-SINICA, 1999, 14(3): 75-78. doi: 10.3321/j.issn:1000-7091.1999.03.015.

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http://www.hbnxb.net/EN/Y1999/V14/I3/75

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