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The performance of the hooded gene of barley (Hordeum vulgare) in rainfed Mediterranean climates

Published online by Cambridge University Press:  27 March 2009

A. Hadjichristodoulou
A. Hadjichristodoulou
Affiliation:
Agricultural Research Institute, Nicosia, Cyprus
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Summary

The progenies of six crosses, made in 1987, between the best available hooded barley line and six selected awned barley lines were used to study the effect of the hooded gene on the performance of barley under rainfed conditions in Cyprus. A single dominant gene was found to control the hooded character. Awned genotypes on average outyielded hooded genotypes by 17%, but the difference between the two genotypes was smaller in the central plain than in the coastal area. The effect of the hooded gene on yield varied also with the combination of parents, as the superiority of the awned genotypes varied with cross from 13 to 30%. Hooded lines giving a higher grain yield than their hooded parent were identified. On average the awned genotypes had higher 1000-grain weight (5·0 g), were slightly later in heading date (1·1 days), had slightly higher volume weight (1·3 kg/hl) than hooded genotypes, but had similar plant height. The 1000-grain weight of most hooded lines was significantly higher than that of their hooded parent.

In spite of the negative effects of the hooded gene on grain yield, it was concluded that it is possible to increase the yield of hooded barley for hay production by continued crossing and selection (with special emphasis on 1000-grain weight), by selecting special combinations of parents through the Bulk-Pedigree method and by growing hooded barley in suitable areas, making use of the locationdependent performance of the hooded gene.

Type
Crops and Soils
Information
The Journal of Agricultural Science , Volume 123 , Issue 3 , December 1994 , pp. 313 - 317
Copyright
Copyright © Cambridge University Press 1994

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