The Effect of Increasing Irrigation Rates on the Carbon Isotope Discrimination of Apple Leaves

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027006%3A_____%2F23%3A10176240" target="_blank" >RIV/00027006:_____/23:10176240 - isvavai.cz</a>

Alternative codes found

RIV/25271121:_____/23:N0000131

Result on the web

<a href="https://www.mdpi.com/2073-4395/13/6/1623/pdf?version=1686912401" target="_blank" >https://www.mdpi.com/2073-4395/13/6/1623/pdf?version=1686912401</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/agronomy13061623" target="_blank" >10.3390/agronomy13061623</a>

Result language

angličtina

Original language name

The Effect of Increasing Irrigation Rates on the Carbon Isotope Discrimination of Apple Leaves

Original language description

C-13 discrimination (Delta C-13) has been used in research as an indicator of water availability in crops; however, few data are available concerning fruit trees. The aim of this study was to examine the effect of irrigation on the Delta C-13 values of apple leaves. We assumed that Delta C-13 would increase with irrigation intensity. The Delta C-13 of apple trees (Malus domestica) cv. &apos;Red Jonaprince&apos; was determined in the years 2019-2022. Leaf samples were collected in spring, in June, at the beginning of the irrigation campaign, and in autumn, in September, following the harvest. The irrigation doses were applied to replenish the water consumption, 0% (ET0), 50% (ET50), 75% (ET75), and 100% (ET100), of the calculated evapotranspiration (ET) levels. In November, the leaves collected from different positions on the shoots were sampled, assuming the Delta C-13 signature would reflect the changes occurring in the water supply during their growth. The irrigation rates had a significant effect on the Delta C-13 of the leaves when the data for the spring and summer months were pooled. On average, Delta C-13 increased from 20.77% and 20.73% for ET0 and ET50, respectively, to 20.80% and 20.95% for ET75 and ET100, respectively. When the data obtained for the spring and summer months were analysed separately, the effect of irrigation was weak (p &lt; 0.043). The Delta C-13 value was always higher for treatment ET100 than treatment ET0, for individual experimental years and terms; however, the differences were minor and mostly insignificant. The leaf position had a strong significant effect on Delta C-13; the values gradually decreased from the leaves growing from two-years-old branches (22.50%) to the youngest leaves growing at the top of the current year&apos;s shoots (21.07%). This order was similar for all the experimental years. The results of the experiment suggest that C-13 discrimination in apples is affected not only by water availability during growth, but also by the use of C absorbed in previous years.

Czech name

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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

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OECD FORD branch

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

Project

<a href="/en/project/QK1910165" target="_blank" >QK1910165: Modern practices in irrigation regime of fruit trees grown in water deficit conditions</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

2023

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

13

Issue of the periodical within the volume

6

Country of publishing house

CH - SWITZERLAND

Number of pages

18

Pages from-to

1623

UT code for WoS article

001020674600001

EID of the result in the Scopus database

2-s2.0-85163978597