| 窦春蕊,吴万兴,李文华,张忠良,鲁周民.黄土高原地区3个大扁杏品种的光合特性日变化研究[J].干旱地区农业研究,2005,(6):93~97 |
| 黄土高原地区3个大扁杏品种的光合特性日变化研究 |
| Comparative study on photosynthetic characteristics among 3 Prunus armeniaca×sibirica species of Loess Plateau |
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| DOI：10.7606/j.issn.1000-7601.2005.06.19 |
| 中文关键词: 大扁杏 光合速率 蒸腾速率 气孔导度 水分利用效率 黄土高原 |
| 英文关键词:Prunus armeniaca×sibirica photosynthetic rate transpiration rate stomatal conductance water use efficiency Loess Plateau |
| 基金项目:国家林业局重点科研计划项目(2000-07) |
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| 中文摘要: |
| ：对陕西吴旗县引种栽培的龙王帽、一窝蜂和优一3个大扁杏品种的光响应曲线、净光合速率(Pn)、蒸腾速率(Tr)、气孔导度(Gs)和水分利用效率(WUE)等生理特性指标进行了测定和比较分析。结果表明:龙王帽、一窝蜂和优一的光饱和点分别为600,600和400μm o l/(m2.s);日均P n排序为一窝蜂[4.07μm o l/(m2.s)]>龙王帽[3.75μm o l/(m2.s)]>优一[3.17μm o l/(m2.s)],日均T r排序为一窝蜂[1.74 mm o l/(m2.s)]>龙王帽[1.51mm o l/(m2.s)]>优一[1.29 mm o l/(m2.s)],日均WUE排序为优一(2.35 mm o l/m o l)>龙王帽(2.29 mm o l/m o l)>一窝蜂(2.22 mm o l/m o l)。3个品种比较而言,一窝蜂和龙王帽属高光合、强蒸腾品种,适宜栽植在水分和光照条件较好的地方;优一属弱蒸腾、低光合品种,适于在光照和水分条件稍差的地方生长。 |
| 英文摘要: |
| Light response curve,photosynthetic rate(Pn),transpiration rate(Tr), stomatal conductance(Gs),water use efficiency(WUE) of three Prunus armeniaca×sibirica species in Wuqi county of Shaanxi province were measured and analyzed in this paper.The results show that the light saturation point(CO2) of Longwangmao,Yiwofeng,Youyi were about 600,600,400 μmol/(m2·s).The Pn of 3 species were Yiwofeng [4.07 μmol/(m2·s)]> Longwangmao [3.75 μmol/(m2·s)] > Youyi [3.17 μmol/(m2·s)].The Tr of 3 species were Yiwofeng [1.74 mmol/(m2·s)]> Longwangmao [1.51 mmol/(m2·s)]> Youyi [1.29 mmol/(m2·s)].The WUE of 3 species were Youyi(2.35 mmol/mol)> Longwangmao(2.29 mmol/mol) > Yiwofeng(2.22 mmol/mol).Among the 3 species,Longwangmao and Yiwofeng had higher Pn and Tr than those of Youyi.So Youyi were suitable to be grown in worse light condition and soil moisture condition. |
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