Chin J Plant Ecol ›› 2012, Vol. 36 ›› Issue (8): 831-840.DOI: 10.3724/SP.J.1258.2012.00831
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YAN Xing-Fu*(), ZHOU Li-Biao, ZHANG Kao-Wen, ZHOU Yun-Feng
Received:
2012-01-04
Accepted:
2012-05-07
Online:
2012-01-04
Published:
2012-08-21
Contact:
YAN Xing-Fu
YAN Xing-Fu, ZHOU Li-Biao, ZHANG Kao-Wen, ZHOU Yun-Feng. Cotyledon loss and its effects on survival and growth of Quercus wutaishanica seedlings under different densities[J]. Chin J Plant Ecol, 2012, 36(8): 831-840.
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Fig. 1 Retention rate of cotyledon and its dynamics of Quercus wutaishanica seedlings with different densities in a Larix principis-rupprechtii plantation of Liupan Mountains (mean ± SD).
Fig. 2 Retention rate of taproot and apical bud of Quercus wutaishanica seedlings with different densities after cotyledon predation by rodents in a Larix principis-rupprechtii plantation of Liupan Mountains (mean ± SD). Same letters within the same data series indicate no significant difference at 0.05 level.
密度 Density (ind.·m-2) | 子叶被取食幼苗 Cotyledon-predated seedling | 子叶完整幼苗 Cotyledon-intact seedling | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
2010 | 2011 | 2010 | 2011 | ||||||||||
July 21 | August 22 | September 27 | July 15 | September 27 | July 21 | August 22 | September 27 | July 15 | September 27 | ||||
3.24 | 13.70 ± 10.05ab | 24.21 ± 14.40ab | 22.33 ± 11.15a | 18.15 ± 6.74a | 6.84 ± 3.89a | 30.00 ± 26.46a | 47.78 ± 42.99ab | 30.00 ± 26.46ab | 3.33 ± 5.77a | 6.67 ± 11.55a | |||
2.56 | 19.61 ± 9.90ab | 32.18 ± 16.03ab | 28.78 ± 15.84ab | 15.52 ± 17.05ab | 12.42 ± 11.93a | 14.44 ± 17.10a | 10.00 ± 17.32a | 16.67 ± 15.28a | 3.33 ± 5.77a | 0.00 ± 0.00 | |||
1.96 | 23.14 ± 8.30ab | 32.10 ± 10.15a | 26.53 ± 11.36ab | 14.99 ± 7.68a | 13.23 ± 5.59a | 10.23 ± 9.30a | 30.68 ± 27.90ab | 33.18 ± 18.67ab | 6.06 ± 10.50a | 14.39 ± 12.92a | |||
1.44 | 28.05 ± 7.69a | 40.66 ± 5.27a | 38.09 ± 8.02a | 15.43 ± 15.55ab | 18.81 ± 8.08a | 23.44 ± 10.14a | 28.74 ± 11.18ab | 24.82 ± 17.37a | 27.83 ± 20.95ab | 12.86 ± 14.50a | |||
1.00 | 28.39 ± 20.56ab | 31.20 ± 13.43a | 29.47 ± 13.96ab | 17.31 ± 12.73ab | 17.16 ± 7.96a | 24.44 ± 21.43a | 57.78 ± 36.72b | 58.89 ± 8.39b | 41.11 ± 8.39b | 23.33 ± 25.17a | |||
0.64 | 8.59 ± 8.35b | 5.56 ± 9.62b | 13.03 ± 15.38b | 2.78 ± 4.81b | 0.00 ± 0.00 | 6.67 ± 11.55a | 33.89 ± 22.99ab | 0.00 ± 0.00 | 0.00 ± 0.00 | 0.00 ± 0.00 |
Table 1 Retention rates and dynamics of cotyledon-predated by rodents and cotyledon-intact seedlings of Quercus wutaishanica with different densities in a Larix principis-rupprechtii plantation of Liupan Mountains (mean ± SD)
密度 Density (ind.·m-2) | 子叶被取食幼苗 Cotyledon-predated seedling | 子叶完整幼苗 Cotyledon-intact seedling | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
2010 | 2011 | 2010 | 2011 | ||||||||||
July 21 | August 22 | September 27 | July 15 | September 27 | July 21 | August 22 | September 27 | July 15 | September 27 | ||||
3.24 | 13.70 ± 10.05ab | 24.21 ± 14.40ab | 22.33 ± 11.15a | 18.15 ± 6.74a | 6.84 ± 3.89a | 30.00 ± 26.46a | 47.78 ± 42.99ab | 30.00 ± 26.46ab | 3.33 ± 5.77a | 6.67 ± 11.55a | |||
2.56 | 19.61 ± 9.90ab | 32.18 ± 16.03ab | 28.78 ± 15.84ab | 15.52 ± 17.05ab | 12.42 ± 11.93a | 14.44 ± 17.10a | 10.00 ± 17.32a | 16.67 ± 15.28a | 3.33 ± 5.77a | 0.00 ± 0.00 | |||
1.96 | 23.14 ± 8.30ab | 32.10 ± 10.15a | 26.53 ± 11.36ab | 14.99 ± 7.68a | 13.23 ± 5.59a | 10.23 ± 9.30a | 30.68 ± 27.90ab | 33.18 ± 18.67ab | 6.06 ± 10.50a | 14.39 ± 12.92a | |||
1.44 | 28.05 ± 7.69a | 40.66 ± 5.27a | 38.09 ± 8.02a | 15.43 ± 15.55ab | 18.81 ± 8.08a | 23.44 ± 10.14a | 28.74 ± 11.18ab | 24.82 ± 17.37a | 27.83 ± 20.95ab | 12.86 ± 14.50a | |||
1.00 | 28.39 ± 20.56ab | 31.20 ± 13.43a | 29.47 ± 13.96ab | 17.31 ± 12.73ab | 17.16 ± 7.96a | 24.44 ± 21.43a | 57.78 ± 36.72b | 58.89 ± 8.39b | 41.11 ± 8.39b | 23.33 ± 25.17a | |||
0.64 | 8.59 ± 8.35b | 5.56 ± 9.62b | 13.03 ± 15.38b | 2.78 ± 4.81b | 0.00 ± 0.00 | 6.67 ± 11.55a | 33.89 ± 22.99ab | 0.00 ± 0.00 | 0.00 ± 0.00 | 0.00 ± 0.00 |
密度 Density (ind.·m-2) | 顶芽被取食幼苗 Apical bud-predated seedling | 顶芽完整幼苗 Apical bud-intact seedling | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
2010 | 2011 | 2010 | 2011 | ||||||||||
July 21 | August 22 | September 27 | July 15 | September 27 | July 21 | August 22 | September 27 | July 15 | September 27 | ||||
3.24 | 14.53 ± 10.91ab | 22.84 ± 11.84a | 22.84 ± 11.84a | 17.71 ± 5.91a | 6.28 ± 2.88a | 20.83 ± 36.08a | 25.00 ± 43.30a | 20.83 ± 36.08a | 12.50 ± 21.65a | 8.33 ± 14.43a | |||
2.56 | 17.93 ± 9.66ab | 28.01 ± 13.04a | 27.20 ± 14.92a | 12.71 ± 13.05ab | 8.10 ± 5.33ab | 38.89 ± 9.62a | 59.26 ± 8.49a | 37.04 ± 33.95a | 22.22 ± 25.46a | 22.22 ± 25.46a | |||
1.96 | 17.82 ± 5.33a | 30.21 ± 10.29a | 23.92 ± 13.08a | 14.55 ± 9.77ab | 12.39 ± 4.68ab | 60.48 ± 10.72a | 62.38 ± 15.67a | 40.95 ± 40.03a | 18.10 ± 20.27a | 18.10 ± 20.27a | |||
1.44 | 24.22 ± 13.71ab | 38.17 ± 13.82a | 33.05 ± 12.13a | 17.24 ± 18.41ab | 22.79 ± 7.71b | 29.17 ± 26.02a | 47.22 ± 29.26a | 50.00 ± 0.00a | 4.17 ± 7.22a | 4.17 ± 7.22a | |||
1.00 | 22.30 ± 15.17ab | 24.44 ± 9.18a | 24.44 ± 9.18a | 14.68 ± 13.06ab | 12.46 ± 5.77ab | 41.67 ± 38.19a | 41.67 ± 38.19a | 37.50 ± 33.07a | 29.17 ± 26.02a | 16.67 ± 28.88a | |||
0.64 | 7.04 ± 6.12b | 7.04 ± 6.12b | 13.70 ± 15.17a | 3.33 ± 5.77b | 0.00 ± 0.00 | 16.67 ± 28.88a | 16.67 ± 28.88a | 0.00 ± 0.00 | 0.00 ± 0.00 | 0.00 ± 0.00 |
Table 2 Retention rates and dynamics of apical bud-predated by rodents and apical bud-remained seedlings of Quercus wutaishanica with different densities in a Larix principis-rupprechtii plantation of Liupan Mountains (mean ± SD)
密度 Density (ind.·m-2) | 顶芽被取食幼苗 Apical bud-predated seedling | 顶芽完整幼苗 Apical bud-intact seedling | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
2010 | 2011 | 2010 | 2011 | ||||||||||
July 21 | August 22 | September 27 | July 15 | September 27 | July 21 | August 22 | September 27 | July 15 | September 27 | ||||
3.24 | 14.53 ± 10.91ab | 22.84 ± 11.84a | 22.84 ± 11.84a | 17.71 ± 5.91a | 6.28 ± 2.88a | 20.83 ± 36.08a | 25.00 ± 43.30a | 20.83 ± 36.08a | 12.50 ± 21.65a | 8.33 ± 14.43a | |||
2.56 | 17.93 ± 9.66ab | 28.01 ± 13.04a | 27.20 ± 14.92a | 12.71 ± 13.05ab | 8.10 ± 5.33ab | 38.89 ± 9.62a | 59.26 ± 8.49a | 37.04 ± 33.95a | 22.22 ± 25.46a | 22.22 ± 25.46a | |||
1.96 | 17.82 ± 5.33a | 30.21 ± 10.29a | 23.92 ± 13.08a | 14.55 ± 9.77ab | 12.39 ± 4.68ab | 60.48 ± 10.72a | 62.38 ± 15.67a | 40.95 ± 40.03a | 18.10 ± 20.27a | 18.10 ± 20.27a | |||
1.44 | 24.22 ± 13.71ab | 38.17 ± 13.82a | 33.05 ± 12.13a | 17.24 ± 18.41ab | 22.79 ± 7.71b | 29.17 ± 26.02a | 47.22 ± 29.26a | 50.00 ± 0.00a | 4.17 ± 7.22a | 4.17 ± 7.22a | |||
1.00 | 22.30 ± 15.17ab | 24.44 ± 9.18a | 24.44 ± 9.18a | 14.68 ± 13.06ab | 12.46 ± 5.77ab | 41.67 ± 38.19a | 41.67 ± 38.19a | 37.50 ± 33.07a | 29.17 ± 26.02a | 16.67 ± 28.88a | |||
0.64 | 7.04 ± 6.12b | 7.04 ± 6.12b | 13.70 ± 15.17a | 3.33 ± 5.77b | 0.00 ± 0.00 | 16.67 ± 28.88a | 16.67 ± 28.88a | 0.00 ± 0.00 | 0.00 ± 0.00 | 0.00 ± 0.00 |
Fig. 3 Seedling height, basal stem diameter, leaf number, taproot length, total dry mass, root-shoot ratio, leaf area per seedling and specific leaf area of Quercus wutaishanica seedlings with different densities in a Larix principis-rupprechtii plantation of Liupan Mountains (mean ± SD). Same letters among different density treatments within the same growth parameter indicate no significant difference at 0.05 level.
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