Improved wheat grain yield by a new method of root selection

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43210%2F15%3A43907981" target="_blank" >RIV/62156489:43210/15:43907981 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1007/s13593-014-0227-4" target="_blank" >http://dx.doi.org/10.1007/s13593-014-0227-4</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s13593-014-0227-4" target="_blank" >10.1007/s13593-014-0227-4</a>

Result language

angličtina

Original language name

Improved wheat grain yield by a new method of root selection

Original language description

Wheat is a major source of protein for human food, a critical issue at a time when mankind is growing by 77 million people per year. Wheat was domesticated approximately 10,000 years ago and has been systematically bred for about 200 years. However, this breeding selection has been done using only aerial plant parts. Indeed, wheat roots, the hidden half of plant, were not considered in breeding programs due to the lack of an appropriate method. Here, we evaluated roots of 18 wheat populations. The root system size was measured by its electrical capacitance directly in field. The plants in third and fourth generations were evaluated during shooting and heading. Then plants were selected for large and small root system. In dry conditions, progeny of plants with large and small root system had yields of 17.1 and 10.9 g per plant in the third generation and 18.5 and 10.0 g per plant in the fourth generation. Our results show that the progeny of the plants selected for large roots have larger roots than their parents, also in next generation. Similarly, the progeny of small root plants have smaller roots. The selection process showed a greater response for larger root system size. This response can be evolutionarily advantageous and make selection easier than, for example, selection for grain yield. Our unique method enables accurate, repeated evaluation and harvest of selected plants. Selection for higher wheat root system size can be easily used to breed for drought tolerance and higher efficiency of water and fertilizer use.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

GE - Plant cultivation

OECD FORD branch

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Project

<a href="/en/project/QI111C080" target="_blank" >QI111C080: The specification of available supply of water in soil profile on the basis of model of root system for effective management of water and nitrogen use in farms.</a><br>

Continuities

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

Publication year

2015

Confidentiality

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

Name of the periodical

Agronomy for Sustainable Development

ISSN

1774-0746

e-ISSN

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Volume of the periodical

35

Issue of the periodical within the volume

1

Country of publishing house

FR - FRANCE

Number of pages

8

Pages from-to

195-202

UT code for WoS article

000348065500014

EID of the result in the Scopus database

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