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LCi-SD LCi-SD 便攜式光合儀

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LCi-SD 便攜式光合儀是zui小巧、輕便的便攜式光合作用測(cè)定儀,用以測(cè)量植物葉片的光合速率、蒸騰速率、氣孔導(dǎo)度等與植物光合作用相關(guān)的參數(shù)。儀器應(yīng)用IRGA(紅外氣體分析)原理,精密測(cè)量葉片表面CO2濃度及水分的變化情況來考察葉片與植物光合作用相關(guān)的參數(shù)。

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LCi-SD 便攜式光合儀

LCi-SD 便攜式光合儀是zui小巧、輕便的便攜式光合作用測(cè)定儀,用以測(cè)量植物葉片的光合速率、蒸騰速率、氣孔導(dǎo)度等與植物光合作用相關(guān)的參數(shù)。儀器應(yīng)用IRGA(紅外氣體分析)原理,精密測(cè)量葉片表面CO2濃度及水分的變化情況來考察葉片與植物光合作用相關(guān)的參數(shù)。特殊的設(shè)計(jì)可在高濕度、高塵埃環(huán)境使用。既可在研究中使用,又是很好的教學(xué)儀器。

應(yīng)用領(lǐng)域

  • 植物光合生理研究
  • 植物抗脅迫研究
  • 碳源碳匯研究
  • 植物對(duì)氣候變化的相應(yīng)及其機(jī)理
  • 作物新品種篩選

 

技術(shù)特點(diǎn)

  • 配備手持式葉綠素?zé)晒鈨x,內(nèi)置了所有通用葉綠素?zé)晒夥治鰧?shí)驗(yàn)程序,包括兩套熒光淬滅分析程序、3套光響應(yīng)曲線程序、OJIP-test
  • 便攜式設(shè)計(jì),體積輕小,僅重2Kg
  • 微型IRGA置于葉室中,大大縮短CO2測(cè)量的反應(yīng)時(shí)間
  • 可在惡劣環(huán)境下使用,野外工作時(shí)間長(zhǎng)
  • 可方便互換不同種類的葉室
  • 葉室材料經(jīng)精心選擇,以確保CO2及水分的測(cè)量精度
  • 數(shù)據(jù)存儲(chǔ)量大,可使用即插即拔的SD
  • 操作簡(jiǎn)單,維護(hù)方便,葉室所有區(qū)域都很容易清潔
  • 采用低能耗技術(shù),野外單電池持續(xù)工作時(shí)間可達(dá)10小時(shí)

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            

技術(shù)指標(biāo)

  • 測(cè)量參數(shù):光合速率、蒸騰速率、胞間CO2濃度、氣孔導(dǎo)度、葉片溫度、葉室溫度、光合有效輻射、氣壓等
  • 手持葉綠素?zé)晒鈨x(選配)
  1. 測(cè)量參數(shù)包括F0、Ft、Fm、Fm’、QY_LnQY_Dn、NPQQp、Rfd、RAR、AreaM0、Sm、PIABS/RC50多個(gè)葉綠素?zé)晒鈪?shù),及3種給光程序的光響應(yīng)曲線、2種熒光淬滅曲線、OJIP曲線等
  2. 高時(shí)間分辨率,可達(dá)10萬次每秒,自動(dòng)繪出OJIP曲線并給出26個(gè)OJIP-test測(cè)量參數(shù)包括F0Fj、FiFm、FvVj、Vi、Fm/F0、Fv/F0、Fv/Fm、M0、Area、Fix Area、Sm、Ss、NPhi_P0、Psi_0、Phi_E0Phi-D0、Phi_Pav、PI_Abs、ABS/RC、TR0/RC、ET0/RC、DI0/RC
  • CO2測(cè)量范圍:0-2000ppm
  • CO2測(cè)量分辨率:1ppm
  • CO2采用紅外分析系統(tǒng),差分開路測(cè)量系統(tǒng),自動(dòng)置零,自動(dòng)氣壓和溫度補(bǔ)償
  • H2O測(cè)量范圍:0-75 mbar
  • H2O測(cè)量分辨率:0.1mbar
  • H2O測(cè)量采用雙激光調(diào)諧快速響應(yīng)水蒸氣傳感器
  • PAR測(cè)量范圍:0-3000 μmol m-2 s-1
  • 室溫度:-5 - 50   精度:±0.2
  • 片溫度:-5 - 50
  • 葉室中空氣流量:100 500ml / min
  • 空氣流量精度:全量程的±2%
  • 預(yù)熱時(shí)間:20時(shí)5分鐘
  • 數(shù)據(jù)存儲(chǔ):1G SD卡,可存儲(chǔ)16,000,000組典型數(shù)據(jù)
  • 數(shù)據(jù)接口:mini-USB接口,RS232標(biāo)準(zhǔn)接口
  • 圖形顯示:可實(shí)時(shí)圖形顯示各測(cè)量參數(shù)
  • 可選配便攜式光源:具有PLU控制單元,控光范圍0-2300 μmol m-2 s-1
  • 可選配葉室
  1. 寬葉葉室:測(cè)量面積6.25cm2,適用于闊葉
  2. 窄葉葉室:測(cè)量面積5.2cm2,適用于條形葉
  3. 針葉葉室:適用于簇狀針葉
  4. 小型葉葉室:葉室直徑為16.5mm,適用于葉片直徑在11mm16mm之間的葉片
  5. 小型草本植物群落測(cè)量室:測(cè)量高度低于55mm的整株草本植物光合作用
  6. 整株擬南芥測(cè)量室                                                                                                  
  7. 土壤呼吸室:體積為1L,含土壤溫度傳感器
  8. 果實(shí)測(cè)量室:兩部分組成,上部透明、下部為體積為1L
  9. 熒光儀聯(lián)用適配器:適用于連接多種葉綠素?zé)晒鈨x
  • 供電系統(tǒng):內(nèi)置12V 2.8AH鉛酸電池,可持續(xù)工作10小時(shí)左右
  • 操作環(huán)境:545
  • 主機(jī)尺寸:240×125×140mm,2.4Kg
  • 主機(jī)顯示參數(shù):環(huán)境CO2和水蒸汽;CO2和水蒸汽變化;葉室和葉片的溫度;氣流速率;大氣壓;光合有效輻射;光合速率;胞間CO2濃度;蒸騰速率;氣孔導(dǎo)度;電池狀態(tài)

典型應(yīng)用

Leaf life span optimizes annual biomass production rather than plant photosynthetic capacity in an evergreen shrub, Marty C. et al. 2010, New Phytologist, 187(2): 407-416

本文研究了Rhododendron ferrugineum(高山玫瑰杜鵑,杜鵑屬模式種)凈光合能力與葉片壽命的關(guān)系,發(fā)現(xiàn)有更多較老葉片的種群其光合能力更強(qiáng)(圖中深色區(qū)域?yàn)橐荒耆~片和二年葉片)。

產(chǎn)地:英國(guó)

參考文獻(xiàn)(近三年發(fā)表200余篇SCI文章,僅列出部分代表性文獻(xiàn))

  1. Soil moisture overshadows temperature control over soil CO2 efflux in a Pinus canariensis forest at treeline in Tenerife, Canary Islands, Brito P. et al. 2013, Acta Oecologica, 48:1-6
  2. Physiological and biochemical characteristics of Sorghum bicolor and Sorghum sudanense subjected to salt stress in two stages of development, Oliveira VP. et al. African Journal of Agricultural Research 8(8),  660-670
  3. Influence of inorganic nitrogen sources on K+/Na+ homeostasis and salt tolerance in sorghum plants, Miranda R S. et al. 2013, Acta Physiologiae Plantarum, 35(3), 841-852
  4. Contrasting Physiological Responses of Jatropha curcas Plants to Single and Combined Stresses of Salinity and Heat, Silva E N. et al. 2013, Journal of Plant Growth Regulation, 32(1), 159-169
  5. Daily photosynthetic radiation use efficiency for apple and pear leaves: Seasonal changes and estimation of canopy net carbon exchange rate, Auzmendi I, et al. 2013, European Journal of Agronomy, 51, 18
  6. Leaf life span optimizes annual biomass production rather than plant photosynthetic capacity in an evergreen shrub, Marty C. et al. 2010, New Phytologist, 187(2): 407-416
  7. Response of Holm oak (Quercus ilex subsp. ballota) and mastic shrub (Pistacia lentiscus L.) seedlings to high concentrations of Cd and Tl in the rhizosphere, Domínguez M.T. et al. 2011, Chemosphere, 83(8), 1166-1174
  8. Drought induces opposite changes in the concentration of non-structural carbohydrates of two evergreen Nothofagus species of differential drought resistance, Piper F.I. 2011, Annals of Forest Science, 68(2), 415-424
  9. Shrub species affect distinctively the functioning of scattered Quercus ilex trees in Mediterranean open woodlands, Forest Ecology and Management, Rolo V. et al. 2011, 261(11): 1750-1759
  10. Morphological and photosynthetic alterations in the Yellow-ipe, Tabebuia chrysotricha (Mart. Ex DC.) Standl., under nursery shading and gas exchange after being transferred to full sunlight, Endres L. et al. 2010, Agroforestry systems, 78(3): 287-298
  11. Changes in biomass and photosynthetic parameters of tomato plants exposed to trivalent and hexavalent chromium, Henriques F. S. 2010, Biologia Plantarum, 54(3): 583-586
  12. The possible role of quinate in the mode of action of glyphosate and acetolactate synthase inhibitors, Orcaray L. et al. 2010, Pest Management Science, 66(3): 262-269
  13. The role of organic and inorganic solutes in the osmotic adjustment of drought-stressed Jatropha curcas plants, Silva E.N. et al. 2010, Environmental and Experimental Botany, 69(3): 279-285

 


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