The Responses of Plant Leaf CO2/H2O Exchange and Water Use Efficiency to Drought: A Meta-Analysis

Zhang, Jinmeng; Jiang, Hong; Song, Xinzhang; Jin, Jiaxin; Zhang, Xiuying

doi:10.3390/su10020551

Cited by 53 publications

(41 citation statements)

References 59 publications

(89 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This conclusion cannot be drawn from our experiments. However, the observation that C 3 plants become more water use efficient during mild and moderate drought while C 4 plants show more stable WUE [86] is in accordance with our data on iWUE.…”

Section: Comparative Analysis Of Maize and Arabidopsissupporting

confidence: 92%

“…Such a mechanism results in advantages in A n and WUE under non-or mild-water-deficit conditions [9,66,69,73,77,78]. However, these advantages cannot be maintained when the drought gets severe, especially for maize and C 4 grass species [66,69,73,77,78,86], which is in agreement with our observation for maize B73 at SWC below 27%. The differences can also translate to the field level, where maize has been found to be more sensitive to drought than wheat (C 3 ), with yield reductions of 39.3% compared to 20.6%, respectively, at approximately 40% water reduction [88].…”

Section: Comparative Analysis Of Maize and Arabidopsissupporting

confidence: 90%

“…A recent meta-analysis on WUE revealed a tenfold bias in favor of C 3 plant studies compared to analyses on C 4 plants [86]. We therefore see an urgent need for more studies on C 4 crops to shed light on the mechanisms of WUE under water deficit in these important but drought-sensitive crops.…”

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

Generating Plants with Improved Water Use Efficiency

et al. 2018

View full text Add to dashboard Cite

To improve sustainability of agriculture, high yielding crop varieties with improved water use efficiency (WUE) are needed. Despite the feasibility of assessing WUE using different measurement techniques, breeding for WUE and high yield is a major challenge. Factors influencing the trait under field conditions are complex, including different scenarios of water availability. Plants with C3 photosynthesis are able to moderately increase WUE by restricting transpiration, resulting in higher intrinsic WUE (iWUE) at the leaf level. However, reduced CO2 uptake negatively influences photosynthesis and possibly growth and yield as well. The negative correlation of growth and WUE could be partly disconnected in model plant species with implications for crops. In this paper, we discuss recent insights obtained for Arabidopsis thaliana (L.) and the potential to translate the findings to C3 and C4 crops. Our data on Zea mays (L.) lines subjected to progressive drought show that there is potential for improvements in WUE of the maize line B73 at the whole plant level (WUEplant). However, changes in iWUE of B73 and Arabidopsis reduced the assimilation rate relatively more in maize. The trade-off observed in the C4 crop possibly limits the effectiveness of approaches aimed at improving iWUE but not necessarily efforts to improve WUEplant.

show abstract

Section: Comparative Analysis Of Maize and Arabidopsissupporting

confidence: 92%

Section: Comparative Analysis Of Maize and Arabidopsissupporting

confidence: 90%

See 1 more Smart Citation

Generating Plants with Improved Water Use Efficiency

et al. 2018

View full text Add to dashboard Cite

show abstract

“…In Changbai Mountains, the higher GPP were observed than that in the Greater and the Lesser Khingan Mountains, which mainly because Changbai Mountains had better hydro-thermal conditions and was more favourable to vegetation growth. Some researches (Bai et al, 2008;Seneviratne et al, 2010;Wang et al, 2017;Zhang et al, 2018b) have also proved our findings.…”

Section: Discussionsupporting

confidence: 81%

Spatio-Temporal Variations of Soil Water Use in the Growing Season in Northeast China Using Modis Data

Chang¹,

Huang²,

Li³

et al. 2018

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci.

View full text Add to dashboard Cite

ABSTRACT:Water use efficiency is known as an important indicator of carbon and water cycle and reflects the transformation capacity of vegetation water and nutrients into biomass. In this study, we presented a new indicator of water use efficiency, soil water use level (SWUL), derived from satellite remote sensing based gross primary production and the Visible and Shortwave Infrared Drought Index (VSDI). SWUL based on MODIS data was calculated for the growing season of 2014 in Northeast China, and the spatial pattern and the variation trend were analyzed. Results showed that the highest SWUL was observed in forestland with the value of 36.65. In cropland and grassland, the average SWUL were 26.18 and 29.29, respectively. SWUL showed an increased trend in the first half period of the growing season and peaked around the 200th day. After the 220th day, SWUL presented a decreasing trend. Compared to the soil water use efficiency (SWUE), SWUL might depict the water use status at finer spatial resolution. The new indicator SWUL can help promote understanding the water use efficiency for regions of higher spatial heterogeneity.

show abstract

“…Internal leaf CO 2 concentrations may be limited under drought due to stomatal closure leading to reduced gas exchange (Zhang et al . ). Indeed, the stomatal conductance of different oak species was reduced under drought (Arend et al .…”

Section: Discussionmentioning

confidence: 97%

Effects of continuous versus pulsed drought stress on physiology and growth of wheat

2018

View full text Add to dashboard Cite

In the course of climate change, crop plants are exposed to both altered precipitation volumes and frequencies in many cultivation areas. Reduced water availability and longer periods without precipitation can lead to changes in plant physiology and productivity. In this greenhouse study, we investigated physiological responses, including maximum quantum yield of photosystem II (F /F ) and water use efficiency (WUE) as well as diverse productivity-related parameters, including grain yield per plant, to continuous (irrigated three times a week) versus pulsed (once a week) irrigation in spring wheat (Triticum aestivum L.). In both drought regimes, plants were exposed to four different irrigation volumes. F /F was not influenced by irrigation treatment but was significantly higher after 6 weeks of drought than after 2 weeks. WUE increased with decreasing irrigation volume and based on generative biomass; it was higher in continuously-watered compared to pulsed-watered plants that received a similar amount of water over the experiment. Infrequent irrigation led to a reduction in grain yield of up to 51%. This lower productivity was primarily caused by fewer tillers in pulsed-watered plants. Additionally, at low water volume the thousand grain weight (TGW) was lower in infrequently-compared to frequently-watered plants. In contrast, the number of grains per ear was higher in pulsed-watered plants. In conclusion, reduced irrigation frequency, next to a decrease in irrigation volume, negatively affects WUE and grain yield of spring wheat. These results might have important implications for irrigation scheduling and breeding programmes under a changing climate.

show abstract

The Responses of Plant Leaf CO2/H2O Exchange and Water Use Efficiency to Drought: A Meta-Analysis

Cited by 53 publications

References 59 publications

Generating Plants with Improved Water Use Efficiency

Generating Plants with Improved Water Use Efficiency

Spatio-Temporal Variations of Soil Water Use in the Growing Season in Northeast China Using Modis Data

Effects of continuous versus pulsed drought stress on physiology and growth of wheat

Contact Info

Product

Resources

About