Does the root system size and seed vigour affect the drought tolerance of wheat?

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43210%2F17%3A43912495" target="_blank" >RIV/62156489:43210/17:43912495 - isvavai.cz</a>

Výsledek na webu

<a href="https://mnet.mendelu.cz/mendelnet2017/mnet_2017_full.pdf" target="_blank" >https://mnet.mendelu.cz/mendelnet2017/mnet_2017_full.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Does the root system size and seed vigour affect the drought tolerance of wheat?

Popis výsledku v původním jazyce

Drought is one of the most serious abiotic stressors reducing the yield of cereal crops worldwide. Plants can defend water scarcity by &quot;drought escape&quot; thanks to more vigorous seed or by &quot;dehydration avoidance&quot; via development of larger and deeper root system in crucial vegetation stages. The root system size (RSS), seed vigour of 14 winter wheat genotypes were tested in a two-year field experiment RSS was evaluated by measuring its electrical capacitance in three vegetation stages. The seed vigour was tested in conditions of cold (10 oC) and drought stress (at -0.5 MPa). RSS was significantly affected by genotype in stem elongation phase (11.4%) and in the average of vegetation period (8.2%). The seed vigour was significantly affected by the interaction of the genotype with the year (40.4%) and genotype (37.3%). Correlation analysis of seed parameters and RSS and grain yield respectively did not show a clear relationship of the monitored traits. However, the grain yield was significantly affected by the root system size, especially in the heading phase. Hence, larger root system could be responsible for improved drought tolerance of wheat.

Název v anglickém jazyce

Does the root system size and seed vigour affect the drought tolerance of wheat?

Popis výsledku anglicky

Drought is one of the most serious abiotic stressors reducing the yield of cereal crops worldwide. Plants can defend water scarcity by &quot;drought escape&quot; thanks to more vigorous seed or by &quot;dehydration avoidance&quot; via development of larger and deeper root system in crucial vegetation stages. The root system size (RSS), seed vigour of 14 winter wheat genotypes were tested in a two-year field experiment RSS was evaluated by measuring its electrical capacitance in three vegetation stages. The seed vigour was tested in conditions of cold (10 oC) and drought stress (at -0.5 MPa). RSS was significantly affected by genotype in stem elongation phase (11.4%) and in the average of vegetation period (8.2%). The seed vigour was significantly affected by the interaction of the genotype with the year (40.4%) and genotype (37.3%). Correlation analysis of seed parameters and RSS and grain yield respectively did not show a clear relationship of the monitored traits. However, the grain yield was significantly affected by the root system size, especially in the heading phase. Hence, larger root system could be responsible for improved drought tolerance of wheat.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

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

Projekt

<a href="/cs/project/QJ1510098" target="_blank" >QJ1510098: Nové linie pšenice pro efektivnější využití vstupů a s vyšší odolností ke stresům</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název statě ve sborníku

MendelNet 2017: Proceedings of International PhD Students Conference

ISBN

978-80-7509-529-9

ISSN

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e-ISSN

neuvedeno

Počet stran výsledku

5

Strana od-do

81-85

Název nakladatele

Mendelova univerzita v Brně

Místo vydání

Brno

Místo konání akce

Brno

Datum konání akce

8. 11. 2017

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000440194500012