Influence of waterlogging time on the growth of <i>Kandelia candel</i> seedlings

CHEN Lu-zhen; WANG Wen-qing; LIN Peng

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CHEN Lu-zhen, WANG Wen-qing, LIN Peng. Influence of waterlogging time on the growth of Kandelia candel seedlings[J]. Haiyang Xuebao, 2005, 27(2): 141-147.

Citation:

CHEN Lu-zhen, WANG Wen-qing, LIN Peng. Influence of waterlogging time on the growth of Kandelia candel seedlings[J]. Haiyang Xuebao, 2005, 27(2): 141-147.

CHEN Lu-zhen, WANG Wen-qing, LIN Peng. Influence of waterlogging time on the growth of Kandelia candel seedlings[J]. Haiyang Xuebao, 2005, 27(2): 141-147.

Citation:

CHEN Lu-zhen, WANG Wen-qing, LIN Peng. Influence of waterlogging time on the growth of Kandelia candel seedlings[J]. Haiyang Xuebao, 2005, 27(2): 141-147.

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Influence of waterlogging time on the growth of Kandelia candel seedlings

School of Life Science, Xiamen University, Xiamen 361005, China;Research Center for Wetlands and Ecological Engineering, Xiamen University, 361005, China

Received Date: 2003-03-03
Rev Recd Date: 2003-10-13

Abstract

Abstract

Influence of waterlogging time on the growth of Kandelia candel(L.)Druce seedlings grown for 70 d in artificialtidal tanks simulated semidiurnal tide under greenhouse was studied.Sand and soil acted as the substrate and artificial seawater with the salinity of 15 were used in cultivation.Shorter water-logging time(inundated for about 2~4 h)promoted the growth of K.candel seedlings,while longer time (inundated more than 8 h)or no water logging(0 h)inhibited their growth.The number and length of aerating roots increased with the increase of waterlogging time.In current condition,the optimal waterlogging time for the growth of K.candel seedlings was about 2~4 h in every tide cycle.Comparing with other treatments,seedlings in 2 h sanded treatment sobtained the highest biomass,made the lowest mass loss of hypocoty l and broadened the photosynthetic area by increasing area per leaf after 70d cultivation.And the soil treatments had the similar tendency.However,waterlogging for 8 h in every tide cycle is critical for normal development of seedlings.K.candel seedlins were highly tolerant to water logging and a proper waterlogging was beneficial to the growth of K.candel seedlings.
- K.candel,
- growth,
- optimal waterlogging time,
- critical waterlogging time

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References(28)

References

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