Chin J Plant Ecol ›› 2009, Vol. 33 ›› Issue (1): 150-160.DOI: 10.3773/j.issn.1005-264x.2009.01.017
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XU Xin-Wu1,2, FAN Da-Yong1, XIE Zong-Qiang1,*(), ZHANG Shou-Ren1, ZHANG Xiang-Ying1,2
Received:
2008-02-25
Accepted:
2008-05-23
Online:
2009-02-25
Published:
2009-01-30
Contact:
XIE Zong-Qiang
XU Xin-Wu, FAN Da-Yong, XIE Zong-Qiang, ZHANG Shou-Ren, ZHANG Xiang-Ying. EFFECTS OF DIFFERENT FLUSH SOLUTIONS ON VALUES OF HYDRAULIC CONDUCTIVITIES AND CAVITATION RESISTANCE ABILITIES OF TRESS OF POPULUS TOMENTOSA AND PINUS TABULAEFORMIS[J]. Chin J Plant Ecol, 2009, 33(1): 150-160.
物种 Species | 处理溶液 Treat solution | Ψ50 (MPa) | 最大导水率 Kh (kg·m-1·MPa-1·s-1) | 比导率 Ks (kg·m-1·MPa-1·s-1) | 叶比导率Kl (kg·m-1·MPa-1·s-1) |
---|---|---|---|---|---|
毛白杨 Populus tomentosa | 去离子水 Deionized water | -1.81 ± 0.19a | 4.08E-05 ± 0.91E-05a | 2.57 ± 0.31a | 0.000 271 ± 2.8E-05b |
草酸 Oxalic acid | -2.19 ± 0.21a | 5.27E-05 ± 0.95E-05a | 3.57 ± 0.58a | 0.000 367 ± 3.2E-05b | |
氯化钾 KCl | -2.40 ± 0.21a | 5.57E-05 ± 1.32E-05a | 3.55 ± 0.47a | 0.000 515 ± 6.6E-05a | |
油松 Pinus tabulaeformis | 去离子水 Deionized water | -2.38 ± 0.30b | 8.55E-06 ± 0.82E-06a | 0.511 ± 0.035a | 0.000 193 ± 2.1E-05a |
草酸 Oxalic acid | -1.14 ± 0.21c | 1.28E-05 ± 0.20E-05b | 0.583 ± 0.057a | 0.000 267 ± 5.2E-05a | |
氯化钾 KCl | -4.06 ± 0.20a | 1.23E-05 ± 0.10E-05ab | 0.605 ± 0.034a | 0.000 216 ± 3.1E-05a |
Table 1 Values of Ψ50, Kh, Ks and Kl of two plants in different flush solutions (mean±SE)
物种 Species | 处理溶液 Treat solution | Ψ50 (MPa) | 最大导水率 Kh (kg·m-1·MPa-1·s-1) | 比导率 Ks (kg·m-1·MPa-1·s-1) | 叶比导率Kl (kg·m-1·MPa-1·s-1) |
---|---|---|---|---|---|
毛白杨 Populus tomentosa | 去离子水 Deionized water | -1.81 ± 0.19a | 4.08E-05 ± 0.91E-05a | 2.57 ± 0.31a | 0.000 271 ± 2.8E-05b |
草酸 Oxalic acid | -2.19 ± 0.21a | 5.27E-05 ± 0.95E-05a | 3.57 ± 0.58a | 0.000 367 ± 3.2E-05b | |
氯化钾 KCl | -2.40 ± 0.21a | 5.57E-05 ± 1.32E-05a | 3.55 ± 0.47a | 0.000 515 ± 6.6E-05a | |
油松 Pinus tabulaeformis | 去离子水 Deionized water | -2.38 ± 0.30b | 8.55E-06 ± 0.82E-06a | 0.511 ± 0.035a | 0.000 193 ± 2.1E-05a |
草酸 Oxalic acid | -1.14 ± 0.21c | 1.28E-05 ± 0.20E-05b | 0.583 ± 0.057a | 0.000 267 ± 5.2E-05a | |
氯化钾 KCl | -4.06 ± 0.20a | 1.23E-05 ± 0.10E-05ab | 0.605 ± 0.034a | 0.000 216 ± 3.1E-05a |
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