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| Effects of waterlogging stress on growth and development of fresh corn seedling |
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| DOI：10.16768/j.issn.1004-874X.2017.10.001 |
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| Abstract: |
| Double pots waterlogging experiment was conducted to analyze the influence of waterlogging stress
on fresh corn seedling root，aboveground morphology，photosynthesis，and leaf protective enzyme activity，compared
with conventional water supply. The results showed that the maize root length and root activity decreased significantly
under waterlogging stress，and the trend was more and more evident with longer duration of waterlogging，but the
effect of waterlogging stress on number of root system was relatively small. The corn plant obviously reduced and blade
rate dropped significantly under waterlogging. Leaf chlorophyll content and net photosynthetic rate were significantly
lower than control after waterlogging，and the transpiration rate dropped significantly after 12 d. The SOD and POD
enzymes activities of the leaf increased under waterlogging stress，and those enzymes activities increased significantly
after 12 d. SOP and POD enzymes activities can be used as physiological indexes to reflect the waterlogging tolerance
of fresh corn seedling. |
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