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Journal Article

Journal Article

Assessment of spring barley populations in comparison to homogenous varieties  [2019]

Locmele, I., Latvia Univ. of Life Sciences and Technologies, Jelgava (Latvia);Latvia Univ. of Life Sciences and Technologies, Priekuli, Priekuli Parish, Priekuli Municipality (Latvia). Inst. of Agricultural Resources and Economics; Legzdina, L., Latvia Univ. of Life Sciences and Technologies, Priekuli, Priekuli Parish, Priekuli Municipality (Latvia). Inst. of Agricultural Resources and Economics; Piliksere, D., Latvia Univ. of Life Sciences and Technologies, Jelgava (Latvia); Gaile, Z., Latvia Univ. of Life Sciences and Technologies, Jelgava (Latvia); et al.

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The necessity to increase genetic diversity in agriculture has been widely discussed during the last decades. Heterogeneous populations are one of the ways to increase genetic diversity in varieties of self-pollinating cereals. The aim of this research was to compare grain yield, its stability, foliar diseases severity and competitiveness against the weeds of spring barley (Hordeum vulgare) populations and homogenous varieties. Field trials consisting of three types of populations (simple, complex and composite cross populations – CCP) containing different levels of diversity and three check varieties were carried out during 2015−2018 under organic and conventional farming systems. No one of the populations had a significantly higher average yield than any of the check varieties. CCP1 showed a tendency to be more productive under organic growing conditions and can be characterized as widely adaptable to various growing conditions with a significantly higher yield as the average overall environments. One of the complex populations showed adaptability to favourable growing conditions and yield insignificantly higher than overall average. Other studied populations can be characterized with wide adaptability and various yield levels. For most of the populations under organic and conventional conditions, a significantly lower net blotch (caused by Pyrenophora teres) severity was observed in comparison with the most susceptible variety; infection with powdery mi
ldew (caused by Blumeria graminis) lower than for check varieties was observed under organic growing conditions, whereas such trend was not observed under conventional conditions. All populations had a significantly lower crop ground cover and slightly lower competiveness against weeds than the variety with the best competitiveness
From the journal
Research for Rural Development. International Scientific Conference Proceedings (Latvia)
ISSN : 2255-923X

Bibliographic information

Language:
English
Type:
Conference
In AGRIS since:
2020
Issue:
25/2019
Start Page:
21−28
Publisher:
Latvia University of Life Sciences and Technologies
All titles:
"Assessment of spring barley populations in comparison to homogenous varieties"@eng
Other:
"Summary (En)"
"4 tables, 1 fig., 21 ref."
"Research for Rural Development 2019. Annual 25th International Scientific Conference Proceedings (online resource), Latvia Univ. of Life Sciences and Technologies, Jelgava (Latvia).- Jelgava (Latvia): Latvia University of Life Sciences and Technologies, 2019. International Scientific Conference: Research for Rural Development 2019, 25, Jelgava (Latvia), 15−17 May 2019.- p. 21−28"
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Bibliographic information

Language:
English
Type:
Conference
In AGRIS since:
2020
Issue:
25/2019
Start Page:
21−28
Publisher:
Latvia University of Life Sciences and Technologies
All titles:
"Assessment of spring barley populations in comparison to homogenous varieties"@eng
Other:
"Summary (En)"
"4 tables, 1 fig., 21 ref."
"Research for Rural Development 2019. Annual 25th International Scientific Conference Proceedings (online resource), Latvia Univ. of Life Sciences and Technologies, Jelgava (Latvia).- Jelgava (Latvia): Latvia University of Life Sciences and Technologies, 2019. International Scientific Conference: Research for Rural Development 2019, 25, Jelgava (Latvia), 15−17 May 2019.- p. 21−28"