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GrainGenes Reference Report: JID-96-273

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Reference	JID-96-273
Title	Grain yield in Italian environments and glutenin composition of durum wheat cultivars
Journal	Journal of Agriculture and Environment for International Development
Year	2002
Volume	96
Pages	273-281
Author	Palumbo M Boggini G Chiari T Bellah F
Abstract	In order to evaluate yield performance of 24 durum wheat cultivars, from different origin, in variable environmental conditions, agronomic trials were conducted for 2 years in: (i) Sicily, at a location representative of the semi-arid Mediterranean environments, and in (ii) the central area of the fertile Po Valley, in northern Italy. With the aim of supporting the breeding strategy of Algerian durum wheat, the results obtained in Italian trials were compared with the yield responses of the same genotypes tested in 18 Algerian environments, representative of 2 different subregions characterised by favourable and less favourable climatic conditions. Significant correlations were found between the performances of the genotypes in the Algerian milder locations (low-elevation subregion) and those of the 2 Italian sites. In the Italian environments the high yielding cultivars were characterised by early heading time and short plant stature. The results suggested that genotypes bred in Italy or well-adapted to Italian environments may adapt to the Algerian favourable sites; on the contrary, it seems difficult to select genotypes suitable for the stressed environments of the Algerian high-elevation subregion, in Italy. To characterise the cultivars for genetic qualitative characteristics, the glutenin composition of each genotype was determined by SDS-PAGE electrophoretic analysis. The HMW and LMW glutenin composition of the genotypes was diverse. Most of the cultivars evaluated were found to possess the HMW glutenin subunits '20' and '7+8'. However some of the cultivars possessed alleles for rarer subunits, including, '14+16', '13+16' and '7*+9*'
Keyword	[ Hide all but 1 of 13 ] allele characteristics chemical composition crop yield cultivar environment genotype genotype environment interaction glutenin hard wheat heading date plant composition variety trials

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