The effect of different post-anthesis water supply on the carbon isotope discrimination of winter wheat grain

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027006%3A_____%2F16%3A00003676" target="_blank" >RIV/00027006:_____/16:00003676 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.17221/118/2016-PSE" target="_blank" >http://dx.doi.org/10.17221/118/2016-PSE</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.17221/118/2016-PSE" target="_blank" >10.17221/118/2016-PSE</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The effect of different post-anthesis water supply on the carbon isotope discrimination of winter wheat grain

Popis výsledku v původním jazyce

Isotopic carbon discrimination (delta 13C) of winter wheat grain grown under different water and nitrogen supplies was determined. In two field experiments during years 2004–2007 (A) and 2008–2013 (B), a water shortage was induced from the flowering stage on with a mobile shelter (S), while an optimal water supply was ensured with drip irrigation (I), and a rain-fed crop served as the control treatment (R). Water supply had a statistically significant effect on grain 13C values in both experiments (P < 0.01). The average values of grain 13C in treatments I, R and S were 19.43, 18.68 and 17.70‰ (A); and 20.36, 19.60 and 18.13‰ (B). Grain 13C was in a significant linear relationship (P < 0.01) with the amount of water supplied by precipitation or irrigation. The regressions suggested that grain 13C increased by 1.14‰ and 1.16‰ (A), and 0.98‰ or 0.96‰ (B) for every 100 mm of water from January and March, respectively, until the early dough stage (r = 0.79–0.74, P < 0.05). Pooled data for the whole period 2004–2013 showed increases of 1.06‰ and 1.08‰ (r = 0.91 and 0.82, P < 0.05) for 100 mm of water, respectively. The results of the experiment confirmed the stable and predictable effect of water supply on wheat grain 13C.

Název v anglickém jazyce

The effect of different post-anthesis water supply on the carbon isotope discrimination of winter wheat grain

Popis výsledku anglicky

Isotopic carbon discrimination (delta 13C) of winter wheat grain grown under different water and nitrogen supplies was determined. In two field experiments during years 2004–2007 (A) and 2008–2013 (B), a water shortage was induced from the flowering stage on with a mobile shelter (S), while an optimal water supply was ensured with drip irrigation (I), and a rain-fed crop served as the control treatment (R). Water supply had a statistically significant effect on grain 13C values in both experiments (P < 0.01). The average values of grain 13C in treatments I, R and S were 19.43, 18.68 and 17.70‰ (A); and 20.36, 19.60 and 18.13‰ (B). Grain 13C was in a significant linear relationship (P < 0.01) with the amount of water supplied by precipitation or irrigation. The regressions suggested that grain 13C increased by 1.14‰ and 1.16‰ (A), and 0.98‰ or 0.96‰ (B) for every 100 mm of water from January and March, respectively, until the early dough stage (r = 0.79–0.74, P < 0.05). Pooled data for the whole period 2004–2013 showed increases of 1.06‰ and 1.08‰ (r = 0.91 and 0.82, P < 0.05) for 100 mm of water, respectively. The results of the experiment confirmed the stable and predictable effect of water supply on wheat grain 13C.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

GD - Hnojení, závlahy, zpracování půdy

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

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

2016

Kód důvěrnosti údajů

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

Název periodika

Plant, Soil and Environment

ISSN

1214-1178

e-ISSN

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Svazek periodika

62

Číslo periodika v rámci svazku

7

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

6

Strana od-do

329-334

Kód UT WoS článku

000381447500006

EID výsledku v databázi Scopus

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