Identification

Title

Sweet potato leaf stomatal conductance, leaf chlorophyll content, and tuber yield after exposure to three ozone concentrations in heated glasshouses, UK, 2019-2021

Abstract

The data comprises physiological and yield measurements from an ozone (O3) exposure experiment, during which three varieties of sweet potato (Ipomoea batatas) were exposed to Low, Medium and High O3 treatments using heated dome shaped glasshouses (solardomes). The Erato orange variety was exposed to the three treatments from June to October 2019 and the Murasaki variety from June to October 2021. The Beauregard variety was grown on two occasions, with treatments from August to October 2020, and June to October 2021. Measurements were taken of leaf stomatal conductance, leaf chlorophyll content index as well as the harvest (fresh) weight of tubers. All measurements were made by the corresponding author. The experiments were carried out in the UKCEH Bangor Air Pollution Facility. This work was carried out as part of the UK Centre for Ecology & Hydrology Long-Term Science Official Development Assistance ‘SUNRISE’ project, NEC06476. Stomatal conductance was found to be significantly reduced in the elevated ozone treatments. Yield for the Erato orange and Murasaki varieties was reduced by ~40% and ~50% (Medium and High, respectively, vs Low) whereas Beauregard yield (2021) was reduced by 58% in both (the tubers for the Beauregard plants grown in 2020 were not fully formed). Sweet potato is a staple food crop grown in locations deemed to be at risk from O3 pollution (e.g. Sub-Saharan Africa), and this dataset adds much needed stomatal conductance and yield data of sweet potato grown under different O3 exposure conditions. This can be used to improve model predictions of O3 impacts on sweet potato, along with associated risk assessments. Full details about this dataset can be found at https://doi.org/10.5285/66e73c38-5b85-44a1-818a-52189bdcffda

Resource type

dataset

Resource locator

https://data-package.ceh.ac.uk/data/66e73c38-5b85-44a1-818a-52189bdcffda

name: Download the data

description: Download a copy of this data

function: download

https://data-package.ceh.ac.uk/sd/66e73c38-5b85-44a1-818a-52189bdcffda.zip

name: Supporting information

description: Supporting information available to assist in re-use of this dataset

function: information

Unique resource identifier

code

https://catalogue.ceh.ac.uk/id/66e73c38-5b85-44a1-818a-52189bdcffda

codeSpace

doi:

Dataset language

eng

Spatial reference system

code identifying the spatial reference system

Classification of spatial data and services

Topic category

farming

Keywords

Keyword set

keyword value

Agricultural and Aquaculture Facilities

originating controlled vocabulary

title

GEMET - INSPIRE themes, version 1.0

reference date

date type

publication

effective date

2008-06-01

Keyword set

keyword value

Tropospheric ozone

Ipomoea batatas

yield

stomatal conductance

chlorophyll content

Geographic location

West bounding longitude

-4.024

East bounding longitude

-4.012

North bounding latitude

53.243

South bounding latitude

53.236

Temporal reference

Temporal extent

Begin position

2019-06-01

End position

2019-10-31

Dataset reference date

date type

publication

effective date

2022-02-24

Frequency of update

Quality and validity

Lineage

Sweet potato plug plants (Thompson and Morgan) were each potted into 25 L tubs (35 x 37 cm) filled with John Innes No. 2 (J. Arthur Bowers, UK) compost and placed in heated (ambient +6℃) solardomes (3 m diameter and 2.1 m height) with controlled O3 exposure. Each solardome contained 4 replicate plants exposed to Low, Medium and High O3 treatments (daytime target maximums: 30 ppb, 80 ppb and 110 ppb, respectively). To represent the episodic nature of O3 pollution, for two days of the week all treatment domes received the Low O3 level. O3 concentrations were measured every 30 minutes (for 5 minutes) using two O3 analysers (API 400A Envirotech, UK and 49i Thermo Fisher Scientific, USA) of matched calibration. O3 delivery was controlled and recorded by LabVIEW software (version 2012, National Instruments). Air temperature, relative humidity and light was monitored inside the solardomes (Skye Instruments) and automatically recorded to the LabVIEW software as 30 minute mean values. Leaf level stomatal conductance, temperature and light was recorded using a Delta-T AP4 porometer (calibrated before each measurement session to a curve error of ~10%). The chlorophyll content index of the same leaf was measured immediately afterwards using an Opti-Sciences CCM200 meter. The soil moisture status was measured using a Delta-T ML2 probe attached to a HH2 Moisture meter. Data was recorded onto field sheets and transferred to Excel sheets subsequently exported to comma separated value files for deposit into the EIDC.

Conformity

Conformity report

specification

title

Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services

reference date

date type

publication

effective date

2010-12-08

degree

explanation

Data format

name of format

Comma-separated values (CSV)

version of format

Constraints related to access and use

Constraint set

Limitations on public access

Constraint set

Limitations on public access

Constraint set

Limitations on public access

If you reuse this data, you should cite: Holder, A., Hayes, F. (2022). Sweet potato leaf stomatal conductance, leaf chlorophyll content, and tuber yield after exposure to three ozone concentrations in heated glasshouses, UK, 2019-2021. NERC EDS Environmental Information Data Centre https://doi.org/10.5285/66e73c38-5b85-44a1-818a-52189bdcffda

Responsible organisations

Responsible party

organisation name

UK Centre for Ecology & Hydrology

email address

enquiries@ceh.ac.uk

responsible party role

author

Responsible party

organisation name

UK Centre for Ecology & Hydrology

email address

enquiries@ceh.ac.uk

responsible party role

author

Responsible party

organisation name

UK Centre for Ecology & Hydrology

email address

enquiries@ceh.ac.uk

responsible party role

pointOfContact

Responsible party

organisation name

NERC EDS Environmental Information Data Centre

email address

info@eidc.ac.uk

responsible party role

custodian

Responsible party

organisation name

NERC EDS Environmental Information Data Centre

email address

info@eidc.ac.uk

responsible party role

publisher

Responsible party

organisation name

UK Centre for Ecology & Hydrology

email address

enquiries@ceh.ac.uk

responsible party role

owner

Metadata on metadata

Metadata point of contact

organisation name

Environmental Information Data Centre

full postal address

Lancaster Environment Centre, Library Avenue, Bailrigg

Lancaster

LA1 4AP

UK

email address

info@eidc.ac.uk

responsible party role

pointOfContact

Metadata date

2022-05-18T12:21:22

Metadata language

eng