The influence of low temperature stress on the cold-resistance physiological indexes of Guadua amplexfolia

Ma-Lan-Tao; Chen-Shuang-Lin; Li-Ying-Chun

Forest Research 21(2): 235-238


ISSN/ISBN: 1001-1498
Accession: 033845924

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At the natural condition, 7 physiological indexes of Guadua amplexifolia such as peroxidases ( POD), Superoxide Dismatase ( SOD catalase ( CAT) and so on were measured at 7 different temperatures, which introduced from tropical region abroad. The result indicated: all indexes measured showed high relativity with low temperature stress. At 9 degrees C, the bamboo suffered slight low temperature stress and the ratio of free-water to bound-water decreased evidently; POD, CAT, Pr. and malondialdehyde(MDA) reached the maximum at 3 degrees C and the physiological injury was serious; SOD and Pro. reached the maximum at 0 degrees C; the lowest temperature Guadua amplexifolia could endure was about -2 degrees C.