吉林林业科技
吉林林業科技
길림임업과기
Journal of Jilin Forestry Science and Technology
2015年
6期
18-24
,共7页
竹柳%光响应曲线%CO2 响应曲线%净光合速率日变化%光合作用模拟
竹柳%光響應麯線%CO2 響應麯線%淨光閤速率日變化%光閤作用模擬
죽류%광향응곡선%CO2 향응곡선%정광합속솔일변화%광합작용모의
Salix‘Zhuliu’%optical response curve%CO2 response curve%net photosynthetic rate diurnal variation%photo-synthesis simulation
以竹柳3个无性系为研究对象，以‘垂暴109’柳为对照，研究光合作用光、CO2响应过程和净光合速率日变化。结果表明：竹柳3个无性系最大光合速率都明显大于对照，对照暗呼吸速率则明显大于竹柳3个无性系；当光照强度逐渐增强时，竹柳光合效率高于对照；竹柳与对照净光合速率随着CO2浓度上升而缓慢上升，达到最大值之后净光合速率随着CO2浓度增加而快速下降，达到最大值时大小顺序为：竹柳无性系2＞竹柳无性系1＞竹柳无性系3＞对照；竹柳光饱和点都明显高于对照，对照光补偿点则明显高于竹柳；竹柳羧化效率明显高于对照，对照CO2补偿点则高于竹柳；竹柳无性系1、竹柳无性系2和对照的净光合速率呈现双峰模式，竹柳无性系3则呈现三峰模式；竹柳净光合速率趋饱和时间为6 h，对照为5 h。
以竹柳3箇無性繫為研究對象，以‘垂暴109’柳為對照，研究光閤作用光、CO2響應過程和淨光閤速率日變化。結果錶明：竹柳3箇無性繫最大光閤速率都明顯大于對照，對照暗呼吸速率則明顯大于竹柳3箇無性繫；噹光照彊度逐漸增彊時，竹柳光閤效率高于對照；竹柳與對照淨光閤速率隨著CO2濃度上升而緩慢上升，達到最大值之後淨光閤速率隨著CO2濃度增加而快速下降，達到最大值時大小順序為：竹柳無性繫2＞竹柳無性繫1＞竹柳無性繫3＞對照；竹柳光飽和點都明顯高于對照，對照光補償點則明顯高于竹柳；竹柳羧化效率明顯高于對照，對照CO2補償點則高于竹柳；竹柳無性繫1、竹柳無性繫2和對照的淨光閤速率呈現雙峰模式，竹柳無性繫3則呈現三峰模式；竹柳淨光閤速率趨飽和時間為6 h，對照為5 h。
이죽류3개무성계위연구대상，이‘수폭109’류위대조，연구광합작용광、CO2향응과정화정광합속솔일변화。결과표명：죽류3개무성계최대광합속솔도명현대우대조，대조암호흡속솔칙명현대우죽류3개무성계；당광조강도축점증강시，죽류광합효솔고우대조；죽류여대조정광합속솔수착CO2농도상승이완만상승，체도최대치지후정광합속솔수착CO2농도증가이쾌속하강，체도최대치시대소순서위：죽류무성계2＞죽류무성계1＞죽류무성계3＞대조；죽류광포화점도명현고우대조，대조광보상점칙명현고우죽류；죽류최화효솔명현고우대조，대조CO2보상점칙고우죽류；죽류무성계1、죽류무성계2화대조적정광합속솔정현쌍봉모식，죽류무성계3칙정현삼봉모식；죽류정광합속솔추포화시간위6 h，대조위5 h。
The light, CO2 response process of photosynthetic and net photosynthetic rate diurnal variation were researched by choosing the three Salix ‘Zhuliu ’ clone as research object and the Salix בChuibao109 ’ as control.The results showed that the maximum photosynthetic rate of three Salix‘Zhuliu’ clone was higher than the control significantly.Never-theless, the dark respiration rate of control was significantly greater than three Salix‘Zhuliu’ clone.The photosynthetic ef-ficiency of Salix‘Zhuliu’ was higher than the control when the light intensity increased gradually.The net photosynthetic rate of Salix‘Zhuliu’ and control increased with the rise of CO2 concentration.The net photosynthetic rate decreased rap-idly with the increase of CO2 concentration after reaching the maximum.The maximum size order was Salix‘Zhuliu’ clone 2>Salix‘Zhuliu’ clone 1 >Salix‘Zhuliu’ clone 3>control.The light saturation point of Salix‘Zhuliu’ were signifi-cantly higher than the control.The light compensation point of control was significantly higher than Salix ‘Zhuliu’ .The carboxylation efficiency of Salix‘Zhuliu’ was significantly higher than control.The CO2 compensation point of control was higher than Salix‘Zhuliu’ .The the net photosynthetic rate of Salix‘Zhuliu’ clone 1, Salix‘Zhuliu’ clone 2 and control presented bimodal pattern while Salix‘Zhuliu’ clone 3 presented triplet pattern.The net photosynthetic rate saturated time of Salix ‘Zhuliu’ was 6 h and the control was 5 h.
