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

Result code in 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>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Effect of water deficit on sink strength of spring barley (Hordeum vulgare L.) ears
Original language description
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
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
ED - Physiology
OECD FORD branch
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Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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