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| Experiment in low temperature adaptability of Del 100 cucumber variety |
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| DOI：10.16768/j.issn.1004-874X.2016.10.008 |
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| Abstract: |
| Using cucumber cultivated varieties Del 100 commonly as test material，which commonly used
in Ningxia solar greenhouse cultivation；through the intelligent artificial climate chamber simulation facility in the
production of three low-temperature environment，to measure the changes of four physiological and biochemical
indexes--MDA，proline，electrical conductivity and superoxide dismutase under chilling injury situation. The
results showed that：cucumber seedlings were less affected at 23℃/12℃ environment，followed by 23℃/9℃
environment，and cucumber seedlings were seriously damaged under 23℃/6℃ environment. Cucumber seedlings
could tolerate for 6 days at 23℃/12℃ environment，at 23℃/9℃ environment they can withstand 4 days，and 2
days at 23℃/6℃. Cucumber seedlings have different recovery time under 23℃/17℃（ CK） after being treated by
low temperature stress，the recovery of 6D was not obvious after being treated by 23℃/12℃. 4D recovery process
was not obvious at 23℃/9℃. The recovery of 2D was not obvious after being treated by 23℃/6℃. The recovery of
plants depends on the early impact of the degree of low temperature stress and stress time. |
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