Effect of water deficit on sink strength of spring barley (Hordeum vulgare L.) ears

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41210%2F13%3A62019" target="_blank" >RIV/60460709:41210/13:62019 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Effect of water deficit on sink strength of spring barley (Hordeum vulgare L.) ears

Popis výsledku v původním jazyce

The aim of the experiment with modern varieties of spring barley, Malz and Jersey, and an old variety, Valticky, was to assess the impact of water stress on yield characteristics of ears. Plants were grown in greenhouse conditions in two variants fully watered plants and plants with reduced watering for a 10 days period from stage 31.DC. Water stress caused a weight loss in all varieties (Malz-22.5%, Jersey-35.7% and Valticky-45.8%) and drop of the number of grains in the ear (Malz-17.2%, Jersey-16.9% and Valticky-57.7%). Concurrently, the proportion of fully developed grains on the top and the base of the ear was reduced. Only in the Malz variety was the reduced number of grains partially compensated by higher weight compared to the control in all parts of the ear. Transport of assimilates detected by combustion calorimetry was slowed by water deficit. Filling of the ears was thus extended until the end of ripening. This explains the increase in energy content in the ears up to the ph

Název v anglickém jazyce

Effect of water deficit on sink strength of spring barley (Hordeum vulgare L.) ears

Popis výsledku anglicky

The aim of the experiment with modern varieties of spring barley, Malz and Jersey, and an old variety, Valticky, was to assess the impact of water stress on yield characteristics of ears. Plants were grown in greenhouse conditions in two variants fully watered plants and plants with reduced watering for a 10 days period from stage 31.DC. Water stress caused a weight loss in all varieties (Malz-22.5%, Jersey-35.7% and Valticky-45.8%) and drop of the number of grains in the ear (Malz-17.2%, Jersey-16.9% and Valticky-57.7%). Concurrently, the proportion of fully developed grains on the top and the base of the ear was reduced. Only in the Malz variety was the reduced number of grains partially compensated by higher weight compared to the control in all parts of the ear. Transport of assimilates detected by combustion calorimetry was slowed by water deficit. Filling of the ears was thus extended until the end of ripening. This explains the increase in energy content in the ears up to the ph

Druh

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

CEP obor

ED - Fyziologie

OECD FORD obor

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Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2013

Kód důvěrnosti údajů

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

Název periodika

Research on Crops

ISSN

0972-3226

e-ISSN

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Svazek periodika

14

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

10

Strana od-do

62-71

Kód UT WoS článku

000318454400010

EID výsledku v databázi Scopus

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