| 3个苹果品种气体交换特性及其对环境因子的响应 |
| |
| 引用本文： | 杨红丽,王明,徐业勇,张志刚.3个苹果品种气体交换特性及其对环境因子的响应[J].西北林学院学报,2016,31(3):30-35. |
| |
| 作者姓名： | 杨红丽 王明 徐业勇 张志刚 |
| |
| 作者单位： | （新疆林业科学院 科技推广处，新疆 乌鲁木齐 830000） |
| |
| 摘 要： | 利用Li-6400光合作用系统对3个苹果品种（富士、早富一号、新富一号）的净光合速率（Pn）、气孔导度(Gs)、胞间CO2的浓度（Ci）、蒸腾速率（Tr）和水分利用效率（WUE）以及光响应曲线等生理指标进行测定、对比分析。结果表明:1）3个苹果品种均是高光合、高蒸腾、高水分利用效率的品种，富士光饱和点(LSP) 和光补偿点(LCP)分别为1 542.8 μmol·m-2·s-1、30.4 μmol·m-2·s-1，早富一号LSP和LCP分别为1 618.8 μmol·m-2·s-1、26.6 μmol·m-2·s-1，新富一号LSP和LCP分别为1 189.4 μmol·m-2·s-1、41.8 μmol·m-2·s-1。2）富士的Pn、Tr日变化呈“单峰”曲线；早富一号、新富一号的Pn、Tr日变化均呈“双峰”曲线分布，并且存在光合“午休”现象。3）影响富士Pn、Tr日变化的主要内外界环境因子及作用大小的顺序分别依次为:PPFD>Gs、RH>Tair >Gs；影响早富一号Pn、Tr日变化的主要内外界环境因子以及作用大小的顺序分别依次为:PPFD >Gs>RH、RH>Tair>Gs>PPFD；影响新富一号Pn、Tr日变化的主要内外界环境因子以及作用大小的顺序分别依次为:PPFD >Gs > RH>Tair、RH>Tair >Gs> PPFD。
|
| 关 键 词： | 气体交换 光合特性 水分利用效率 |
Gas Exchange Characteristics of 3 Apple Tree (Malus domestica) Species and Response to Environmental Factors |
| |
| YANG Hong-li,WANG Ming,XU Ye-yong,ZHANG Zhi-gang. Gas Exchange Characteristics of 3 Apple Tree (Malus domestica) Species and Response to Environmental Factors[J].Journal of Northwest Forestry University,2016,31(3):30-35. |
| |
| Authors: | YANG Hong-li WANG Ming XU Ye-yong ZHANG Zhi-gang |
| |
| Institution: | (Science and Technology Promotion Department,Xinjiang Academy of Forestry Sciences,Urumqi,Xinjiang 830000,China) |
| |
| Abstract: | Li-6400 portable photosynthesis system was used to measure the relative parameters of three apple varieties: Fuji,Zaofu No.1,Xinfu No.1.The parameters measured included the diurnal change of photosynthetic rate (Pn),stomatal conductance (Gs),intercellular CO2 concentration (Ci),transpiration rate (Tr),water use efficiency (WUE),light response curve and another physiological indicators.The results indicated that the three varieties all presented high Pn,Tr,and WUE.LSP and LCP of Fuji were 1 542.8 μmol·m-2·s-1 and 30.4 μmol·m-2·s-1,1 618.8 μmol·m-2·s-1 and 26.6 μmol·m-2·s-1 for Zaofu No.1,and 1 189.4 μmol·m-2·s-1 and 41.8 μmol·m-2·s-1 for Xinfu No.1.The diurnal variation of Pn and Tr of Fuji presented a single peak curve,while the other two varieties were in a double peak curve,and had the phenomenon of “photosynthetic sleep”.Factors that affected Pn and Tr of Fuji were in the order of PPFD>Gs,and RH>Tair >Gs,for Zaofu No.1,the orders were PPFD>Gs>RH,and RH>Tair>Gs>PPFD,For Xinfu No.1,the orders were PPFD>Gs>RH>Tair and RH>Tair>Gs>PPFD. |
| |
| Keywords: | gas exchange photosynthetic characteristic water use efficiency |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《西北林学院学报》浏览原始摘要信息 |
| 点击此处可从《西北林学院学报》下载免费的PDF全文 |
|
