Acta Agronomica Hungarica
Volume/Issue:
Volume 53: Issue 1
Changes in agronomic traits affected by photoperiod and vernalization in a group of wild barley accessions (Hordeum vulgare ssp. spontaneum) and barley cultivars (Hordeum vulgare L.)
Authors:
I. Karsai Agricultural Research Institute of the Hungarian Academy of Sciences Martonvásár, Hungary

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K. Mészáros Agricultural Research Institute of the Hungarian Academy of Sciences Martonvásár, Hungary

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L. Láng Agricultural Research Institute of the Hungarian Academy of Sciences Martonvásár, Hungary

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Z. Bedő Agricultural Research Institute of the Hungarian Academy of Sciences Martonvásár, Hungary

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Pages:
89–98
Online Publication Date:
10 Aug 2005
Publication Date:
01 Jul 2005
Article Category:
Research Article
DOI:
https://doi.org/10.1556/AAgr.53.2005.1.11
Keywords:
photoperiod; photoperiod; photoperiod; yield components; Hordeum spontaneum; vernalization
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The effect of vernalization response and photoperiod sensitivity on reproductive fitness and agronomic traits was examined in a group of 16 H. spontaneum accessions and 8 H. vulgare cultivars in controlled environments. The whole range of plant developmental and agronomic traits was determined by vernalization. The reproductive fitness was severely impaired when the vernalization requirements of the plants were not saturated. Variation in the magnitude of vernalization response significantly correlated with several traits. A larger decrease in reproductive tiller number, average seed number and consequently final grain yield was more characteristic of accessions with a greater vernalization response. When the vernalization requirement was met, long photoperiod enhanced the fitness of the plants and resulted in larger yield and yield components, irrespective of the genotype, while short photoperiod acted as a limiting factor for all these traits. There was, however, a difference in the reaction type of wild and cultivated genotypes due to their different plant strategies.

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Cover Acta Agronomica Hungarica
Acta Agronomica Hungarica
Print ISSN:
0238-0161
Online ISSN:
1588-2527

Acta Agronomica Hungarica
Language English
Russian
German
French
Size  
Year of
Foundation		 1950
Publication
Programme		 ceased
Volumes
per Year		  
Issues
per Year		  
Founder Magyar Tudományos Akadémia   
Founder's
Address		 H-1051 Budapest, Hungary, Széchenyi István tér 9.
Publisher Akadémiai Kiadó
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 0238-0161 (Print)
ISSN 1588-2527 (Online)

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