Effects of Post-Anthesis Drought and Irrigation on Grain Yield, Canopy Temperature and C-13 Discrimination in Common Wheat, Spelt, and Einkorn

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027006%3A_____%2F22%3A10175745" target="_blank" >RIV/00027006:_____/22:10175745 - isvavai.cz</a>

Result on the web

<a href="https://www.mdpi.com/2073-4395/12/12/2941/pdf?version=1669284959" target="_blank" >https://www.mdpi.com/2073-4395/12/12/2941/pdf?version=1669284959</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/agronomy12122941" target="_blank" >10.3390/agronomy12122941</a>

Result language

angličtina

Original language name

Effects of Post-Anthesis Drought and Irrigation on Grain Yield, Canopy Temperature and C-13 Discrimination in Common Wheat, Spelt, and Einkorn

Original language description

Fluctuations in precipitation and higher evapotranspiration due to rising temperatures are reflected in reduced wheat yields, even in areas with a low historical incidence of drought. In this study, the effects of drought (S) and irrigation (IR) on spelt, einkorn wheat, and two common wheat cultivars were assessed in a field experiment in the years 2018-2021. Water availability was differentiated from the flowering stage using a mobile cover and drip irrigation. Grain yield, canopy temperature, and discrimination of C-13 in grain (Delta C-13) were monitored. Drought reduced the average grain yield of common wheat to 5.24 t.ha(-1), which was 67.00% of the rain-fed control (C) yield, and 62.09% of the irrigated wheat yield. For spelt and einkorn wheat, the average grain yield from stressed plants was 2.02 t.ha(-1); this was 79.97% of the C-variant yield, and 70.82% of the IR-variant yield. Higher stand temperatures were an excellent indicator of water deficit in the stressed crops. The relationship between temperature and final grain yield in the monitored variants was always negative. In all years, discrimination of C-13 in grain corresponded to water availability; in its effect on yields, the correlation was always positive. Between 2018 and 2020, spelt and einkorn exhibited lower Delta C-13 in comparison with common wheat in all variants, suggesting a greater impact of differentiated water supply. The results of the experiment conclusively demonstrated systematic effects of drought after flowering upon yields and other studied characteristics.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

40106 - Agronomy, plant breeding and plant protection; (Agricultural biotechnology to be 4.4)

Project

<a href="/en/project/QK1910041" target="_blank" >QK1910041: Imaging methods for automatic phenotyping in wheat breeding for resistance to biotic and abiotic stresses</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2022

Confidentiality

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

Name of the periodical

Agronomy-Basel

ISSN

2073-4395

e-ISSN

—

Volume of the periodical

12

Issue of the periodical within the volume

12

Country of publishing house

CH - SWITZERLAND

Number of pages

14

Pages from-to

2941

UT code for WoS article

000900409300001

EID of the result in the Scopus database

2-s2.0-85144908512