中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 干旱-复水处理对寒富苹果光合特性的影响 华北农学报 2014,29 (4) 181-185
Position: Home > Articles > Effect of Drought and Rehydrated Treatment on Leaf Photosynthetic Characters of Hanfu Apple Acta Agriculturae Boreali-Sinica 2014,29 (4) 181-185

干旱-复水处理对寒富苹果光合特性的影响

作  者：
马慧丽;吕德国
单  位：
沈阳农业大学园艺学院;河南科技大学林学院
关键词：
苹果;寒富;干旱-复水处理;光合特性
摘  要：
以自然光照和遮荫环境下生长的寒富苹果为材料,通过气体交换和叶绿素荧光等方法测定了寒富苹果在干旱-复水处理过程中的光合特性。结果表明:干旱胁迫及复水过程中,净光合速率(Pn)、气孔导度(Gs)、胞间二氧化碳浓度(Ci)、PSⅡ最大光化学效率(Fv/Fm)、光合性能指数(PI)等指标表现出先逐渐降低,极度干旱时达到最低值,复水后缓慢回升的趋势;处理结束后,其中全光照下建造的叶片Pn比处理前低41.4%,而遮荫低38.1%;随着干旱胁迫及胁迫解除,单位面积有活性的反应中心的密度(RC/CSo)、单位面积叶片吸收的能量(ABS/CSo)、热耗散的能量(DIo/CSo)均逐渐上升,达到最大值后缓慢下降,其中干旱胁迫7 d,不同光照环境下建造的叶片ABS/CSo和DIo/CSo达到差异极显著,这可能与前期叶片建造质量有较大关系。
译  名：
Effect of Drought and Rehydrated Treatment on Leaf Photosynthetic Characters of Hanfu Apple
作  者：
MA Hui-li;L De-guo;College of Forestry,Henan Science and Technology University;College of Horticulture,Shenyang Agricultural University;
关键词：
Apple;;Hanfu;;Drought and rehydration treatment;;Photosynthetic character
摘  要：
The photosynthetic characters of Hanfu apple leaves under different light conditions were studied by analyzing the gas exchange and chlorophyll fluorescence parameters. The result showed that the net photosynthetic rate( Pn),stomatal conductance( Gs),intercellular corbon dioxide concentration( Ci),maximal photochemical efficiency( Fv /Fm) and photosynthetic performance index( PI) all decreased gradually in dought condition,and reached the lowest in extreme drought,but recovered slowly after rehydration. At the end of the treatment,Pn of leaves under the full light and shading conditions was respectively 41. 4% and 38. 1% lower than that before the treatment. Along with the drought stress and drought relief,the density of SPⅡ reaction per excited cross section( RC/CSo),the energy absorbed per unit area( ABS/CSo) and the heat dissipation of energy( DIo/CSo) increased gradually,and started to decline after they reached the highest. The differences of leaf ABS /CSo and DIo /CSo among different lighting conditions reached a significant level after 7-days of drought stress,which was probably related to the quality of leaves.

相似文章

导出引用
计量
文章访问数: 3
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46