Yield formation parameters of winter wheat under two CO2 levels in water sufficient and depleted environment

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F86652079%3A_____%2F21%3A00561690" target="_blank" >RIV/86652079:_____/21:00561690 - isvavai.cz</a>

Alternative codes found

RIV/62156489:43210/21:43921842

Result on the web

<a href="https://mnet.mendelu.cz/mendelnet2021/mnet_2021_full.pdf" target="_blank" >https://mnet.mendelu.cz/mendelnet2021/mnet_2021_full.pdf</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Yield formation parameters of winter wheat under two CO2 levels in water sufficient and depleted environment

Original language description

Agricultural production faces with ongoing climate that in Europe takes form of changing seasonal precipitation pattern with more frequent drought spells. These changes come on top of rising air temperature and did and will affect productivity as well as onset and duration of key developmental stages for yield formation of major staple crops such as wheat. In order to ensure stable agricultural production and satisfy demand of the increasing humanpopulation, it is crucial to know responses of major field crops to these abiotic stress factors to assess suitability of genotypes to specific environmental conditions. The aim of this study was to evaluate final yield formation parameters of five winter wheat genotypes cultivated in pots and exposed to two different levels of CO2 concentrations (400 ppm as ambient and 700 ppm as elevated CO2 concentrations) and two water treatments (well- watered control and drought-stressed plants). Theexperimental treatments were set up in growth chambers from the end of heading stage (BBCH 59)to the beginning of ripening stage (BBCH 71) to simulate the conditions under future climate. The results showed that elevated CO2 concentration led to: (1) mitigation of reduction in final yield formation parameters of drought-stressed plants compared to those of control, (2) enhanced results of drought-stressed treatments compared to those of drought-stressed treatments exposed to the ambient CO2 concentration. Pannonia NS was found out as the less responsive genotype to the exposition of CO2 concentration (no statistically significant differences among ambient and elevated CO2 concentrations in all yield formation parameters were identified). On contrary, harvest index of genotype Bohemia was identified as the most sensitive parameter in response to drought stress as well as to the atmospheric CO2 concentration.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

40101 - Agriculture

Project

<a href="/en/project/EF16_019%2F0000797" target="_blank" >EF16_019/0000797: SustES - Adaptation strategies for sustainable ecosystem services and food security under adverse environmental conditions</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2021

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

MendelNet 2021: Proceedings of 28th International PhD Students Conference

ISBN

978-80-7509-821-4

ISSN

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e-ISSN

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Number of pages

5

Pages from-to

31-36

Publisher name

Mendel University in Brno

Place of publication

Brno

Event location

Brno

Event date

Nov 10, 2021

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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