Maintenance of photosynthesis as leaves age improves whole plant water use efficiency in an australian wheat cultivar

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389030%3A_____%2F20%3A00532836" target="_blank" >RIV/61389030:_____/20:00532836 - isvavai.cz</a>

Alternative codes found

RIV/61989592:15310/20:73604688

Result on the web

<a href="http://doi.org/10.3390/agronomy10081102" target="_blank" >http://doi.org/10.3390/agronomy10081102</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/agronomy10081102" target="_blank" >10.3390/agronomy10081102</a>

Result language

angličtina

Original language name

Maintenance of photosynthesis as leaves age improves whole plant water use efficiency in an australian wheat cultivar

Original language description

Leaf-level water use efficiency (WUEi) is often used to predict whole plant water use efficiency (WUEwp), however these measures rarely correlate. A better understanding of the underlying physiological relationship between WUEi and WUEwp would enable efficient phenotyping of this important plant trait to inform future crop breeding efforts. Although WUEi varies across leaf age and position, less is understood about the regulatory mechanisms. WUEi and WUEwp were determined in Australian (cv. Krichauff) and UK (cv. Gatsby) wheat cultivars. Leaf gas exchange was measured as leaves aged and evaluated in relation to foliar abscisic acid (ABA) and 1-aminocyclopropane-1-carboxylic acid (ACC) concentration, chlorophyll content and Rubisco activity. Carbon dioxide (CO2) assimilation (A) declined more rapidly as leaves aged in the lower WUEwp genotype Gatsby. Both ACC concentration and Rubisco activity declined as leaves aged, but neither explained the variation in A. Further, stomatal conductance (gs) and stomatal sensitivity to ABA were unchanged as leaves aged, therefore WUEi was lowest in Gatsby. Maintenance of A as the leaves aged in the Australian cultivar Krichauff enabled greater biomass production even as water loss continued similarly in both genotypes, resulting in higher WUEwp.

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

10611 - Plant sciences, botany

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2020

Confidentiality

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

Name of the periodical

Agronomy

ISSN

2073-4395

e-ISSN

—

Volume of the periodical

10

Issue of the periodical within the volume

8

Country of publishing house

CH - SWITZERLAND

Number of pages

15

Pages from-to

1102

UT code for WoS article

000564666400001

EID of the result in the Scopus database

2-s2.0-85090210241