Comparative Analysis of the Photosynthetic Characteristics of Three-year-old Populus tomentosa Clones

ZHAO Xi-yang; MA Kai-feng; ZHANG Ming; BIAN Jin-liang; JIAO Wen-yan; ZHANG Zhi-yi

Volume 24 Issue 3

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Comparative Analysis of the Photosynthetic Characteristics of Three-year-old Populus tomentosa Clones

1.
National Engineering Laboratory for Tree Breeding, Beijing Forestry University, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education,Beijing 100083, China
2.
Forestry Science Institute of Siping City, Siping 136000, Jilin, China
3.
Nursery of Fengfeng Mining District, Handan 056200, Hebei, China
4.
Forestry Bureau of Fengfeng Mining District, Handan 056200, Hebei, China

Received Date: 2010-01-26

Abstract

The photosynthetic characteristics of 30 Populus tomentosa clones were measured with lico-6400 photosynthetic instrument, and the relationship between the environmental factors and physiological indicators was studied by correlation analysis and stepwise regression equation. The results showed that the diurnal net photosynthesis rate (Pn) variation of P.tomentosa clones presented a typical double-peak curve, and that stomatal limitation was a major regulatory factor of decreased photosynthesis. The Pn-Par (photosynthetically active radiation) and Pn-Ca (CO2-response) curves of five P.tomentosa clones shaped like "S", and also accorded with quadratic equation. Under saturated conditions of the Ca and luminous intensity, the Pn, light compensation point (lcp), and CO2 compensation point (ccp) of five selected clones showed significant differences. In addition, with the luminous intensity saturated, the Pn rankings of the 5 clones were: BL204(24.64)＞BL206(23.76)＞BL30(21.50)＞BL207(19.54)＞BL63(18.64 μmol·m-2·s-1). Whereas with the Ca saturated, BL206 had the maximum value (30.15 μmol·m-2·s-1), and BL63 had the minimum value (0.34 μmol·m-2·s-1). Meanwhile, for the five clones, the lcp ranged from 33.08 μmol·m-2·s-1 to 81.17 μmol·m-2·s-1, and ccp ranged from 74.03 μmol·mol-1 to 93.35 μmol·mol-1. The values of Pn, stomatal conductance (Gs), intercellular CO2 concentration (Ci) and transpiration rate (Tr) of 30 poplar clones were significantly different (Sig＜0.000). The results also presented that the phenotype variation coefficients of photosynthetic factors changed between 8.94%-23.22%, and genetic variation coefficients of photosynthetic factors were between 8.78%-22.79%. And the high repeatability revealed that genetic factors played a major role in phenotypic variation. Furthermore, there existed extremely significant correlations among the photosynthetic factors of the poplar clones, the highest correlation coefficient being 0.731. It is concluded that the photosynthetic indices could be used to evaluate poplar clones.
- Populus tomentosa,
- clone,
- photosynthetic rate,
- variation

References

[1]	Ceulenans R J.Prospects of using physiology components of productivityas selection Poplar breeding[J].Ho lzzucht,1989,43:17-25
[2]	Bassman J B,Zwier J c.Gas exchange characteristics of populus trichocarpa,Populus deltoides and Populus trichocarpa×P.eltoides clone[J].Tree Physiology,1991 (8):145-14
[3]	吴瑞云.4个杨树杂交品系的净光合速率特征[J].中央民族学院学报:自然科学版,1999,18(4):10-12
[4]	苏东凯,周永斌,唐庆华,等.不同杨树品种光合生理生态特性的研究[J].西北林学院学报,2006,21(2):39-41
[5]	邓松录,狄晓艳,王孟本,等.杨树无性系光合特征的研究[J].植物研究,2006,26(5):600-608
[6]	郑彩霞,邱箭,姜春宁,等.胡杨多形叶气孔特征及光合特性的比较[J].林业科学,2006,42(8):19-24
[7]	周永斌,马学文,姚鹏,等.不同生长速度杨树品种的光合生理特性研究[J].沈阳农业大学学报,2007,38(3):336-339
[8]	张守仁,高荣孚.光胁迫下杂种杨树无性系光合生理生态特性的研究[J],植物生态学报,2000,24(5),528-533
[9]	邱箭,郑彩霞,于文鹏.胡杨多态叶光合速率与荧光特性的比较研究[J].吉林林业科技,2005,34(3):19-21
[10]	房用,慕宗昭,王月海,等.16个杨树无性系蒸腾特性及其影响因子研究[J].山东大学学报,20O6,41(6):168-172
[11]	李静怡,张志毅.三倍体毛白杨无性系光合特性的研究[J].北京林业大学学报,2000,22(6):12-15
[12]	李善文.杨树杂交亲本与子代遗传变异及分子基础研究 .北京:北京林业大学,2005:33
[13]	续九如.林木数量遗传学[M].北京:中国林业出版社,2006:28-29
[14]	续九如.重复力及其在树木育种中的应用[J].北京林业大学学报,1988,10(4):97-102
[15]	冯岑,陈建华,吴际友,等. 4个台湾桤木无性系光合特性研究[J].中国农学通报,2009,25(12):75-78
[16]	温达志,周国逸,张德强,等.4种禾本科牧草植物蒸腾速率与水分利用效率的比较[J].热带亚热带植物学报,2000(3):67-76
[17]	陈冠喜,李开绵,叶剑秋,等.6个木薯品种光合特性的研究[J].中国农学通报,2009,25(12):263-266
[18]	高健,黄大国.影响滩地杨树净光合速率的生理生态因子研究[J].中南林学院学报,2002,22(2):40-43
[19]	Arquhar G D,Sharkey T D. Stomatal conductance and photosynthesis[J]. AnnRev Plant Physiol, 1982,33:317
[20]	李合生.现代植物生理学[M].北京:高等教育出版社,2002:129
[21]	Surabhi G K K,Reddy R,Singh S K.Photosynthesis,fluorescence,shoot biomass and seed weight responses of three cowpea(Vigna unguiculata(L.)Walp) cultivars with contrasting sensitivity to UV-B radiation[J].Environmental and Experimental Botany,2009,66:160-171
[22]	曹雪丹,李文华,鲁周民,等.北缘地区枇杷春季光合特性的研究[J].西北林学院学报,2008,23(6):33-37
[23]	尤扬,杨立峰,周建,等.白兰花秋季光合特性研究[J]. 西北林学院学报,2009,24(6):24-27
[24]	Calfapietra C,Tulva I,Eensalu E,et al.Canopy profiles of photosynthetic parameters under elevated CO₂ and N fertilization in a poplar plantation[J].Enviromental Pollution,2005,137:525-535
[25]	Li S W,S.Pezeshki R,Goodwin S.Effects of soil moisture regimes on photosynthesis and growth in cattail(Typha latifolia)[J].Acta Oecologica,2004,25:17-22
[26]	赵天锡,陈章水.中国杨树集约栽培[M].北京:中国科学技术出版社,1994:95
[27]	Kim S H,Gitz D C,Richard C,et al.Temperature dependence of growth,development,and photosynthesis in maize under elevated CO₂[J].Enviromental and Experimental Botany,2007,61:224-236
[28]	彭振华.长江中下游滩地杨树栽培与利用[M].北京:中国林业出版社,2002:32

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Comparative Analysis of the Photosynthetic Characteristics of Three-year-old Populus tomentosa Clones

1. National Engineering Laboratory for Tree Breeding, Beijing Forestry University, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants, Ministry of Education,Beijing 100083, China

2. Forestry Science Institute of Siping City, Siping 136000, Jilin, China

3. Nursery of Fengfeng Mining District, Handan 056200, Hebei, China

4. Forestry Bureau of Fengfeng Mining District, Handan 056200, Hebei, China

Received Date: 2010-01-26

Abstract: The photosynthetic characteristics of 30 Populus tomentosa clones were measured with lico-6400 photosynthetic instrument, and the relationship between the environmental factors and physiological indicators was studied by correlation analysis and stepwise regression equation. The results showed that the diurnal net photosynthesis rate (Pn) variation of P.tomentosa clones presented a typical double-peak curve, and that stomatal limitation was a major regulatory factor of decreased photosynthesis. The Pn-Par (photosynthetically active radiation) and Pn-Ca (CO2-response) curves of five P.tomentosa clones shaped like "S", and also accorded with quadratic equation. Under saturated conditions of the Ca and luminous intensity, the Pn, light compensation point (lcp), and CO2 compensation point (ccp) of five selected clones showed significant differences. In addition, with the luminous intensity saturated, the Pn rankings of the 5 clones were: BL204(24.64)＞BL206(23.76)＞BL30(21.50)＞BL207(19.54)＞BL63(18.64 μmol·m-2·s-1). Whereas with the Ca saturated, BL206 had the maximum value (30.15 μmol·m-2·s-1), and BL63 had the minimum value (0.34 μmol·m-2·s-1). Meanwhile, for the five clones, the lcp ranged from 33.08 μmol·m-2·s-1 to 81.17 μmol·m-2·s-1, and ccp ranged from 74.03 μmol·mol-1 to 93.35 μmol·mol-1. The values of Pn, stomatal conductance (Gs), intercellular CO2 concentration (Ci) and transpiration rate (Tr) of 30 poplar clones were significantly different (Sig＜0.000). The results also presented that the phenotype variation coefficients of photosynthetic factors changed between 8.94%-23.22%, and genetic variation coefficients of photosynthetic factors were between 8.78%-22.79%. And the high repeatability revealed that genetic factors played a major role in phenotypic variation. Furthermore, there existed extremely significant correlations among the photosynthetic factors of the poplar clones, the highest correlation coefficient being 0.731. It is concluded that the photosynthetic indices could be used to evaluate poplar clones.

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Reference (28)

[1]	Ceulenans R J.Prospects of using physiology components of productivityas selection Poplar breeding[J].Ho lzzucht,1989,43:17-25
[2]	Bassman J B,Zwier J c.Gas exchange characteristics of populus trichocarpa,Populus deltoides and Populus trichocarpa×P.eltoides clone[J].Tree Physiology,1991 (8):145-14
[3]	吴瑞云.4个杨树杂交品系的净光合速率特征[J].中央民族学院学报:自然科学版,1999,18(4):10-12
[4]	苏东凯,周永斌,唐庆华,等.不同杨树品种光合生理生态特性的研究[J].西北林学院学报,2006,21(2):39-41
[5]	邓松录,狄晓艳,王孟本,等.杨树无性系光合特征的研究[J].植物研究,2006,26(5):600-608
[6]	郑彩霞,邱箭,姜春宁,等.胡杨多形叶气孔特征及光合特性的比较[J].林业科学,2006,42(8):19-24
[7]	周永斌,马学文,姚鹏,等.不同生长速度杨树品种的光合生理特性研究[J].沈阳农业大学学报,2007,38(3):336-339
[8]	张守仁,高荣孚.光胁迫下杂种杨树无性系光合生理生态特性的研究[J],植物生态学报,2000,24(5),528-533
[9]	邱箭,郑彩霞,于文鹏.胡杨多态叶光合速率与荧光特性的比较研究[J].吉林林业科技,2005,34(3):19-21
[10]	房用,慕宗昭,王月海,等.16个杨树无性系蒸腾特性及其影响因子研究[J].山东大学学报,20O6,41(6):168-172
[11]	李静怡,张志毅.三倍体毛白杨无性系光合特性的研究[J].北京林业大学学报,2000,22(6):12-15
[12]	李善文.杨树杂交亲本与子代遗传变异及分子基础研究 .北京:北京林业大学,2005:33
[13]	续九如.林木数量遗传学[M].北京:中国林业出版社,2006:28-29
[14]	续九如.重复力及其在树木育种中的应用[J].北京林业大学学报,1988,10(4):97-102
[15]	冯岑,陈建华,吴际友,等. 4个台湾桤木无性系光合特性研究[J].中国农学通报,2009,25(12):75-78
[16]	温达志,周国逸,张德强,等.4种禾本科牧草植物蒸腾速率与水分利用效率的比较[J].热带亚热带植物学报,2000(3):67-76
[17]	陈冠喜,李开绵,叶剑秋,等.6个木薯品种光合特性的研究[J].中国农学通报,2009,25(12):263-266
[18]	高健,黄大国.影响滩地杨树净光合速率的生理生态因子研究[J].中南林学院学报,2002,22(2):40-43
[19]	Arquhar G D,Sharkey T D. Stomatal conductance and photosynthesis[J]. AnnRev Plant Physiol, 1982,33:317
[20]	李合生.现代植物生理学[M].北京:高等教育出版社,2002:129
[21]	Surabhi G K K,Reddy R,Singh S K.Photosynthesis,fluorescence,shoot biomass and seed weight responses of three cowpea(Vigna unguiculata(L.)Walp) cultivars with contrasting sensitivity to UV-B radiation[J].Environmental and Experimental Botany,2009,66:160-171
[22]	曹雪丹,李文华,鲁周民,等.北缘地区枇杷春季光合特性的研究[J].西北林学院学报,2008,23(6):33-37
[23]	尤扬,杨立峰,周建,等.白兰花秋季光合特性研究[J]. 西北林学院学报,2009,24(6):24-27
[24]	Calfapietra C,Tulva I,Eensalu E,et al.Canopy profiles of photosynthetic parameters under elevated CO₂ and N fertilization in a poplar plantation[J].Enviromental Pollution,2005,137:525-535
[25]	Li S W,S.Pezeshki R,Goodwin S.Effects of soil moisture regimes on photosynthesis and growth in cattail(Typha latifolia)[J].Acta Oecologica,2004,25:17-22
[26]	赵天锡,陈章水.中国杨树集约栽培[M].北京:中国科学技术出版社,1994:95
[27]	Kim S H,Gitz D C,Richard C,et al.Temperature dependence of growth,development,and photosynthesis in maize under elevated CO₂[J].Enviromental and Experimental Botany,2007,61:224-236
[28]	彭振华.长江中下游滩地杨树栽培与利用[M].北京:中国林业出版社,2002:32

Comparative Analysis of the Photosynthetic Characteristics of Three-year-old Populus tomentosa Clones

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Comparative Analysis of the Photosynthetic Characteristics of Three-year-old Populus tomentosa Clones

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