Drought tolerance of barley varieties in relation to their root system size

Autor:	Tomáš Středa, O. Chloupek, V. Dostál, Olga Dvořáčková, Vratislav Psota
Rok vydání:	2010
Předmět:	Agronomy Crop yield Drought tolerance Genetics Grain quality Poaceae Plant Science Cultivar Root system Hordeum vulgare Plant breeding Biology Agronomy and Crop Science
Zdroj:	Plant Breeding. 129:630-636
ISSN:	0179-9541
Popis:	With 2 figures and 4 tables Abstract This study introduces the evaluation of root system size (RSS) for the breeding of barley, in particular for drought tolerance. In 2005–2008, 10–22 varieties of spring barley (Hordeum vulgare L.) were evaluated at two locations (only one in 2007) for RSS by its electric capacity. The RSS was compared with the yield and the quality of the varieties in state registration trials at 7–19 stations each year. Varieties with a greater RSS than the others varieties had a significantly higher yield in the dry year of 2007. Similar relationships between RSS and yield in the other years were found in only some of the environments. Malting varieties with a greater RSS had significantly higher contents of starch, saccharide extracts and malt extracts, as well as higher yields of protein and starch in 2007. It can be concluded that a small RSS is related to a low grain yield and malt quality in dry environments, even in genetically diverse varieties.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::abc13093a4f9f2aafa0dfe7178554a39 https://doi.org/10.1111/j.1439-0523.2010.01801.x Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
Nepřihlášeným uživatelům se plný text nezobrazuje	K zobrazení výsledku je třeba se přihlásit.