ZHANG Li-hua,WANG Xiao-li,WANG Meng-qiu,et al.Effect on Camphor Seedling Photosynthetic Characteristic of Soda Saline-Alkali Strees[J].Northern Horticulture,2012,36(23):91-93.
苏打盐碱胁迫对香樟幼苗光合特性的影响
- Title:
- Effect on Camphor Seedling Photosynthetic Characteristic of Soda Saline-Alkali Strees
- 文章编号:
- 1001-0009(2012)23-0091-03
- 分类号:
- S 792.23
- 文献标志码:
- A
- 摘要:
- 以2 a生的香樟幼苗为试材,以蒸馏水为对照,用0、50、100、200 mmol/L NaHCO3和Na2CO3 1∶1的混合液处理。每7 d施用1次,21 d后研究盐碱胁迫对香樟幼苗光合色素及光合特性的影响。结果表明:随盐碱胁迫程度的增加,植物体内叶绿素a的含量、叶绿素b的含量、总叶绿素的含量、类胡萝卜素的含量下降;植物叶片的光合速率、气孔导度、蒸腾速率、水分利用效率降低,胞间CO2浓度升高。
- Abstract:
- Taking the biennial pot of camphor hydroponics as test material,using 0,50,100,200 mmol/L 1∶1 of NaHCO3 and Na2CO3 mixture of processing camphora seedlings.Replace once 7 days of the nutrient soiytion and different concentration of NaHCO3 and Na2CO3,the saline-alkali tolerance of Cinnamomum camphora seedlings after 21 days were studied.The results showed that with the increase of saline-alkali stress,the content of chlorophyll a,chlorophyll b content,total chlorophyll content,carotenoid content; plant photosynthetic rate,stomatal conductance,transpiration rate,water useefficiency were decreased,intercellular CO2 concentration was increased.
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备注/Memo
第一作者简介:张丽华(1982-),女,本科,助理实验师,现主要从事园艺研究工作。E-mail:770737289@qq.com.