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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

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

Projekt

<a href="/cs/project/QK1910041" target="_blank" >QK1910041: Využití zobrazovacích metod pro automatické fenotypování ve šlechtění na rezistenci k biotickým a abiotickým stresům u pšenice</a><br>

Návaznosti

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

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

Agronomy-Basel

ISSN

2073-4395

e-ISSN

—

Svazek periodika

12

Číslo periodika v rámci svazku

12

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

14

Strana od-do

2941

Kód UT WoS článku

000900409300001

EID výsledku v databázi Scopus

2-s2.0-85144908512