上海农业学报2024，Vol.40Issue(4)：44-50,7.DOI:10.15955/j.issn1000-3924.2024.04.08
水淹胁迫对美洲黑杨嫁接苗叶片色素及光合特性的影响
Effects of pigment and photosynthetic characteristics of Populus deltoides grafted seedlings under waterlogging stress
摘要
Abstract
Three varieties of grafting seedlings were used as experimental materials,the response changes of photosynthetic characteristics and the effects on leaf pigment mass fraction of three poplar varieties under different stress treatment times were studied by using randomized block design and potted plant simulating arid environment,and the normal soil moisture content was used as the control,as well as the correlation among various indicators.The results showed that the pigment quality fraction,Gs,Pn,Tr,and Ciof 3 poplar cultivars all decreased significantly during the waterlogging stress period.At the later stage of stress,the decrease rate of chlorophyll a was greater than that of chlorophyll b.Meanwhile,Ci in leaves increased and CE decreased.The correlation between C and Pn changed from positive to negative,the decrease of Pn was mainly caused by non-stomatal limitation.The correlation analysis of Pn showed different results.The anthocyanin content was positively correlated with Pn in the leaves of P.deltoides cv.'Quanhong',while the anthocyanin content of'Poplar 2025'was negatively correlated with Pn.Under waterlogging stress of 70 d,Pn of leaves of the three poplar varieties was always positive,and WUE increased significantly,showing stable waterlogging resistance genetic characteristics.Among them,the waterlogging resistance ability of P.deltoides cv.'Quanhong'was relatively weak.关键词
杨树品种/水淹胁迫/色素含量/光合特性/相关性分析/耐涝性Key words
Poplar species/Flooding stress/Pigment content/Photosynthetic characteristic/Correlation analysis/Flooding resistance分类
农业科技引用本文复制引用
张江涛,杨淑红,晏增,马永涛,赵蓬晖,朱延林..水淹胁迫对美洲黑杨嫁接苗叶片色素及光合特性的影响[J].上海农业学报,2024,40(4):44-50,7.基金项目
河南省农业科学院自主创新项目(2024ZC110) （2024ZC110）
河南省农业科学院自主创新项目(2023ZC105) （2023ZC105）
