Water and light response on cloned fragments of<em> Rhus typhina</em> with different water heterogeneous patches

LI Xiao-jun; ZHANG Ming-ru; ZHANG Jian-guo; WU Gang; WANG Sheng-jie; ZHANG Hua-liu; WANG Dian-jie

doi:10.11833/j.issn.2095-0756.2011.03.003

Volume 28 Issue 3

Jun. 2011

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Article Navigation > Journal of Zhejiang A&F University > 2011 > 28(3): 359-366

LI Xiao-jun, ZHANG Ming-ru, ZHANG Jian-guo, WU Gang, WANG Sheng-jie, ZHANG Hua-liu, WANG Dian-jie. Water and light response on cloned fragments of Rhus typhina with different water heterogeneous patches[J]. Journal of Zhejiang A&F University, 2011, 28(3): 359-366. doi: 10.11833/j.issn.2095-0756.2011.03.003

Citation:

LI Xiao-jun, ZHANG Ming-ru, ZHANG Jian-guo, WU Gang, WANG Sheng-jie, ZHANG Hua-liu, WANG Dian-jie. Water and light response on cloned fragments of Rhus typhina with different water heterogeneous patches[J]. Journal of Zhejiang A&F University, 2011, 28(3): 359-366. doi: 10.11833/j.issn.2095-0756.2011.03.003

Water and light response on cloned fragments of Rhus typhina with different water heterogeneous patches

doi: 10.11833/j.issn.2095-0756.2011.03.003

1.
School of Forestry and Biotechnology，Zhejiang A & F University，Lin’an 311300，Zhejiang，China;
2.
School of Tourism and Health，Zhejiang A & F University，Lin’an 311300，Zhejiang，China;
3.
Institute of Soil and Water Conservation，Chinese Academy of Science and Ministry of Water Resources，Yangling 712100，Shaanxi，China;
4.
Forest College，Agricultural University of Hebei，Baoding 071000，Hebei，China

More Information

Corresponding author: ZHANG Ming-ru
Publish Date: 2011-06-20

Abstract

Physiological integration characteristics of woody clonal plants has important influence on their use of habitat resources and colonization.To explore the water sharing mechanism in genets and ramets of Rhus typhina，fragments of genets and ramets were selected as the experimental material. Then，the water and light response on cloned fragment of Rhus typhina was studied comparing the genets and ramets in different water heterogeneous patches by measuring water potential and photosynthesis with PSYPRO Water Potential System and Li-6400xT Photosynthesis Analyzer. Results showed that：（1） after adding 500 mL water to the ramets，the water potential of the genets increased 48.7% and the ramets increased 82.1%；however，there were no significant differences（P＞0.05）. （2） It is more sensitive than that of the ramets that the response of the net photosynthetic rate，transpiration rate，stomatal conductance，and intercellular CO2 concentration of the genets to the water，but it was not significant that the difference of increase between genets and ramets（P＞ 0.05）. （3） The fitting of light response curve indicated light compensation point of the genets is lower；light saturation point，higher；apparent quantum efficiency，higher；Thus，for clonal ramets，water sharing mechanisms exist for the genets and ramets of R. typhina in water heterogeneous habitat.［Ch，3 fig. 2 tab. 40 ref.］
- forest ecology,
- Rhus typhina,
- water potential,
- physiological integration of water,
- light response curve

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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

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Water and light response on cloned fragments of Rhus typhina with different water heterogeneous patches

1. School of Forestry and Biotechnology，Zhejiang A & F University，Lin’an 311300，Zhejiang，China;

2. School of Tourism and Health，Zhejiang A & F University，Lin’an 311300，Zhejiang，China;

3. Institute of Soil and Water Conservation，Chinese Academy of Science and Ministry of Water Resources，Yangling 712100，Shaanxi，China;

4. Forest College，Agricultural University of Hebei，Baoding 071000，Hebei，China

Corresponding author: ZHANG Ming-ru

Publish Date: 2011-06-20

Key words:

Abstract: Physiological integration characteristics of woody clonal plants has important influence on their use of habitat resources and colonization.To explore the water sharing mechanism in genets and ramets of Rhus typhina，fragments of genets and ramets were selected as the experimental material. Then，the water and light response on cloned fragment of Rhus typhina was studied comparing the genets and ramets in different water heterogeneous patches by measuring water potential and photosynthesis with PSYPRO Water Potential System and Li-6400xT Photosynthesis Analyzer. Results showed that：（1） after adding 500 mL water to the ramets，the water potential of the genets increased 48.7% and the ramets increased 82.1%；however，there were no significant differences（P＞0.05）. （2） It is more sensitive than that of the ramets that the response of the net photosynthetic rate，transpiration rate，stomatal conductance，and intercellular CO2 concentration of the genets to the water，but it was not significant that the difference of increase between genets and ramets（P＞ 0.05）. （3） The fitting of light response curve indicated light compensation point of the genets is lower；light saturation point，higher；apparent quantum efficiency，higher；Thus，for clonal ramets，water sharing mechanisms exist for the genets and ramets of R. typhina in water heterogeneous habitat.［Ch，3 fig. 2 tab. 40 ref.］

Water and light response on cloned fragments of Rhus typhina with different water heterogeneous patches

doi: 10.11833/j.issn.2095-0756.2011.03.003

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Water and light response on cloned fragments of Rhus typhina with different water heterogeneous patches

doi: 10.11833/j.issn.2095-0756.2011.03.003

Corresponding author: ZHANG Ming-ru

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Water and light response on cloned fragments of Rhus typhina with different water heterogeneous patches

doi: 10.11833/j.issn.2095-0756.2011.03.003

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Water and light response on cloned fragments of Rhus typhina with different water heterogeneous patches

doi: 10.11833/j.issn.2095-0756.2011.03.003

Corresponding author: ZHANG Ming-ru

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