Scientia Silvae Sinicae ›› 2022, Vol. 58 ›› Issue (12): 42-51.doi: 10.11707/j.1001-7488.20221205
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Cuicui Kong1,2,Anwar Elhamjan1,2,Ligang Ma1,2,Yanxin Long1,2,Yayun Wang1,2,Xiaodong Yang2,3,*
Received:
2021-08-23
Online:
2022-12-25
Published:
2023-03-11
Contact:
Xiaodong Yang
CLC Number:
Cuicui Kong,Anwar Elhamjan,Ligang Ma,Yanxin Long,Yayun Wang,Xiaodong Yang. Response of Twig-Leaf Size Relationships Populus euphratica with Heteromorphic Leaves to Drought Stress[J]. Scientia Silvae Sinicae, 2022, 58(12): 42-51.
Table 1
Difference in leaves characteristics between three heteromorphic leaves of P. euphratica"
异形叶 Heteromorphic leaves | 采样高度 Sampling height/m | 样本量 Sample size/N | 叶片塑形特征 Leaves characteristics | |||
单叶面积 Single leaf area/cm2 | 叶长 Leaf length/cm | 叶宽 Leaf width/cm | 叶长宽比 Length-width ratio | |||
卵形叶Oval leaf | >3.5 | 9 | 10.20 ± 3.15a | 3.11 ± 0.45c | 3.59 ± 0.41a | 0.86±0.03c |
近卵形叶Nearly ovate leaf | 1.5~4.0 | 18 | 7.72 ± 1.73a | 3.98 ± 0.33b | 2.17 ± 0.38b | 1.86±0.24b |
披针形叶Lanceolate leaf | <2.2 | 27 | 6.86 ± 1.25a | 6.08 ± 1.01a | 1.64 ± 0.38c | 3.90±1.44a |
统计结果Statistical results | F | 1.88 | 15.83 | 20.18 | 10.07 | |
P-value | 0.23 | <0.01 | <0.01 | <0.05 |
Table 2
Differences in hydraulic and anatomical traits between three heteromorphic leaves and their connecting twigs of P. euphratica"
异形叶 Heteromorphic leaves | 采样高度 Sampling height/m | 样本量 Sample size | 水力学性状Hydraulic traits | 解剖性状Anatomical traits | ||||||
最大蒸腾速率 Maximum transpiration rate/(g· m-2h-1) | 黎明前叶水势 Pre-dawn leaf water potential/MPa | 枝比导率 Specific conductivity of twigs/(kg·s-1MPa-1) | 胡伯尔值 Huber value | 气孔大小 Stomata size /μm2 | 气孔密度 Stomatal density/mm-2 | 栅栏组织厚度 Palisade tissue thickness/μm | ||||
卵形叶 Oval leaf | > 3.5 | 9 | 9.77±0.90a | -1.91±0.37a | 0.21±0.20a | 3.29×10-4±1.65×10-2b | 18.02±0.47a | 172.33±4.93a | 82.61±0.78a | |
近卵形叶 Nearly ovate leaf | 1.5~4.0 | 18 | 6.70±1.34b | -1.59±0.51a | 0.30±0.11a | 3.88×10-4±1.63×10-2b | 16.35±0.82b | 148.67±7.09b | 79.27±1.22b | |
披针形叶 Lanceolate leaf | <2.2 | 27 | 5.11±1.43c | -1.78±0.47a | 0.26±0.80a | 6.03×10-4±2.04×10-4a | 14.23±0.64c | 144.89±6.74c | 64.93±8.11b | |
统计结果 Statistical results | F | 13.72 | 0.54 | 1.08 | 3.66 | 19.60 | 40.35 | 366.52 | ||
P-value | <0.001 | 0.60 | 0.36 | <0.05 | <0.001 | <0.001 | <0.001 |
Table 3
The effects of twig-leaf size relationship on hydraulic and anatomical traits in three heteromorphic leaves of P. euphratica"
性状类型 Types of functional traits | 性状 Traits | 复相关系数 Multiple correlation coefficient | F | P-value |
水力学性状 Hydraulic traits | 最大蒸腾速率Maximum transpiration rate/ (g· m-2h-1) | 0.70 | 7.39 | <0.01 |
黎明前叶水势Pre-dawn leaf water potential /MPa | 0.65 | 5.37 | <0.05 | |
枝比导率Specific conductivity of twigs/ (kg·s-1m-1MPa-1) | 0.27 | 0.60 | 0.56 | |
胡伯尔值Huber value | 0.73 | 8.30 | <0.01 | |
解剖性状 Anatomical traits | 气孔大小Stomata size/μm2 | 0.80 | 13.69 | <0.01 |
气孔密度Stomatal density/mm-2 | 0.66 | 5.73 | <0.01 | |
栅栏组织厚度Palisade tissue thickness/μm | 0.74 | 9.02 | <0.01 |
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