斑皮桉5个种源光响应特性比较分析
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摘要
以斑皮桉(Corymbia maculata) 5个种源的苗木为研究材料,采用Li-6400测定其光响应曲线。结果表明,各种源净光合速率(P_n)、气孔导度(G_s)、胞间二氧化碳(C_i)、蒸腾速率(T_r)和水分利用效率(WUE)随光强梯度变化的趋势一致。种源20598和20772光饱和点较大(分别为1 571.43、1 550.00μmol·m~(-2)·s~(-1)),但光补偿点较高(分别为45.05、36.92μmol·m~(-2)·s~(-1)),其利用强光能力最强,利用弱光的能力最差;种源20884光饱和点和光补偿点均最低(分别为1 350、1.28μmol·m~(-2)·s~(-1)),利用强光的能力差,弱光的能力最强;种源20772属于高净光合速率、中等水分利用效率类型,种源20599属于较高净光合速率、低水分利用效率类型,种源20884属于中等净光合速率、高水分利用效率类型,种源20598和21075属于低净光合速率、中等水分利用效率类型。通过分析斑皮桉5个种源的光合特性,引种和栽培时可根据栽植地的地形、地貌选择适宜的种源。
By taking seedlings of Corymbia maculata from five provenances as the studied materials,their light response curves were recorded and analyzed by Li-6400. Results showed that the trend of change of photosynthetic rate(P_n),stomatal conductant(G_s),intercellular CO_2(C_i),and transpiration rate(T_r),as well as water use efficiency(WUE) among difference provenances were consistent as the change of light gradient. The light saturation points(LSP) of the provenance 20598 and 20772 were higher(1 571.43,1 550.00 μmol · m~(-2)· s~(-1)),with the highest capacity to utilize strong light,but the light compensation points(LCP) were higher(45.05,36.92 μmol · m~(-2)· s~(-1)),with the lowest capacity to utilize low light. The LSP(1 350 μmol · m~(-2)· s~(-1)) and the LCP(1.28 μmol · m~(-2)· s~(-1)) of the provenance 20884 were the lowest,with the lowest capacity to utilize strong light and the highest capacity to utilize low light. The provenance 20772 belonged to the type of high Pnand middle WUE. The provenance 20599 belonged to the type of high Pn and low WUE. The provenance 20884 belonged to the type of middle Pnand high WUE. The provenance 20598 and 21075 belonged to the type of low Pnand middle WUE. By analyzing the photosynthesis characteristics of C.maculata seedlings from 5 provenances,suitable provenance could be introduced and cultivated according to plantation in landscapes of different features.
By taking seedlings of Corymbia maculata from five provenances as the studied materials,their light response curves were recorded and analyzed by Li-6400. Results showed that the trend of change of photosynthetic rate(P_n),stomatal conductant(G_s),intercellular CO_2(C_i),and transpiration rate(T_r),as well as water use efficiency(WUE) among difference provenances were consistent as the change of light gradient. The light saturation points(LSP) of the provenance 20598 and 20772 were higher(1 571.43,1 550.00 μmol · m~(-2)· s~(-1)),with the highest capacity to utilize strong light,but the light compensation points(LCP) were higher(45.05,36.92 μmol · m~(-2)· s~(-1)),with the lowest capacity to utilize low light. The LSP(1 350 μmol · m~(-2)· s~(-1)) and the LCP(1.28 μmol · m~(-2)· s~(-1)) of the provenance 20884 were the lowest,with the lowest capacity to utilize strong light and the highest capacity to utilize low light. The provenance 20772 belonged to the type of high Pnand middle WUE. The provenance 20599 belonged to the type of high Pn and low WUE. The provenance 20884 belonged to the type of middle Pnand high WUE. The provenance 20598 and 21075 belonged to the type of low Pnand middle WUE. By analyzing the photosynthesis characteristics of C.maculata seedlings from 5 provenances,suitable provenance could be introduced and cultivated according to plantation in landscapes of different features.
引文
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[15]唐庆兰,蒋钰渝,李昌荣,等.斑皮柠檬桉不同种源光合特性分析比较[J].热带作物学报,2018,39(5):881-887.
[16]吴承祯,候智勇,洪伟,等.桉树无性系光合光响应研究[J].福建林学院学报,2008,28(3):294-298.
[17]武冲,仲崇禄,张勇,等.麻楝生长和光合作用参数种源变异分析[J].热带作物学报,2014,35(3):509-514.
[18]姜霞,张喜,丁海兵.黔中10个树种苗期水分利用效率及光合特性的差异性研究[J].西部林业科学,2013,42(5):75-81.
[19]王旭军,潘百红,程勇,等.红榉不同种源光合特性的比较[J].中南林业科技大学学报,2013,33(6):37-42.
[20]俞新妥,卢建煌.不同种源马尾松光合能力的比较研究[J].福建林学院学报,1991,11(2):131-135.
[21]赵晓焱,王传宽,霍宏.兴安落叶松光合能力及相关因子的种源差异[J].生态学报,2008,28(8):3798-3807.
[2]BROOKER M I H,KLEINIG D A.Field guide to Eucalypts Volume 3(Nothern Australia)[M].Melbourne,Australia:Blooming Books,2004.
[3]BOOTLE K R.Wood in Australia:Types,properties and uses[M].Sydney,Australia:McGraw-Hill Australia,2005.
[4]SMITH H.Forests NSW Corymbia breeding and deployment program[C]∥Lee D.Corymbia Research Meeting:Underpinning development of a profitable hardwood plantation industry in northern Australia by research into Corymbia species and hybrids.Gympie,Queensland,Department of Primary Industries and Fisheries,2005.
[5]LEE D,NIKLES G,POMROY P,et al.Corymbia Species and Hybrids:A Solution to queensland hardwood plantation[C]∥Lee D.Corymbia Research Meeting:Underpinning development of a profitable hardwood plantation industry in northern Australia by research into Corymbia species and hybrids.Gympie,Queensland,Department of Primary Industrie sand Fisheries,2005.
[6]HARWOOD C,BULMAN P,BUSH D,et al.Australian low rainfall tree improvement group compendium of hardwood breeding strategies[M].Canberra:Rural Industries Research and Development Corporation,2001.
[7]兰俊,吴永富,罗建中,等.斑皮桉生长性状及木材材性遗传参数估算[J].桉树科技,2011,28(2):16-20.
[8]黄德龙,黄秀美,吴载璋,等.耐寒桉树树种及种源引种试验[J].林业科技开发,2003,17(6):18-21.
[9]张顺恒,林星华,郑文国,等.闽南山地桉树种/种源选择试验研究[J].林业科学研究,2001,14(2):188-194.
[10]徐建民,陆钊华,白嘉雨,等.海南岛西北部地区按树无性系选择研究[J].桉树科技,2004,64(1):1-6.
[11]刘天颐,刘纯鑫,孔凡启,等.伞房属四个树种在广东的早期生长表现[J].广东林业科技,2009,25(1):32-36.
[12]刘天颐,刘纯鑫,孔凡启,等.桉树伞房属4个种在广东乐昌的早期生长表现[J].华南农业大学学报,2011,32(2):70-75.
[13]陆钊华,徐建民,陈儒香,等.桉树无性系苗期光合作用特性研究[J].林业科学研究,2003,16(5):575-580.
[14]唐庆兰,申文辉,张照远,等.桉树无性系光合特性研究[J].广西林业科学,2010,39(4):184-188.
[15]唐庆兰,蒋钰渝,李昌荣,等.斑皮柠檬桉不同种源光合特性分析比较[J].热带作物学报,2018,39(5):881-887.
[16]吴承祯,候智勇,洪伟,等.桉树无性系光合光响应研究[J].福建林学院学报,2008,28(3):294-298.
[17]武冲,仲崇禄,张勇,等.麻楝生长和光合作用参数种源变异分析[J].热带作物学报,2014,35(3):509-514.
[18]姜霞,张喜,丁海兵.黔中10个树种苗期水分利用效率及光合特性的差异性研究[J].西部林业科学,2013,42(5):75-81.
[19]王旭军,潘百红,程勇,等.红榉不同种源光合特性的比较[J].中南林业科技大学学报,2013,33(6):37-42.
[20]俞新妥,卢建煌.不同种源马尾松光合能力的比较研究[J].福建林学院学报,1991,11(2):131-135.
[21]赵晓焱,王传宽,霍宏.兴安落叶松光合能力及相关因子的种源差异[J].生态学报,2008,28(8):3798-3807.