Celal YÜCEL, Hatice HIZLI, Hüseyin Kansur FIRINCIOĞLU, Abdullah ÇİL, Adem Emin ANLARSAL

Forage Yield Stability of Common Vetch (Vicia sativa L.) Genotypes in the Çukurova and GAP Regions of Turkey

Improving forage production for an expanding livestock population is essential in the Çukurova and GAP (South-eastern Anatolia Project) regions of Turkey. Feed shortages, especially evident during winter, can be alleviated by introducing high yielding common vetch (Vicia sativa L.) cultivars into crop rotations. The objectives of this research were to determine the genotype x environment interactions and stability parameters for hay yield of 15 vetch lines and cultivars. The vetch genotypes were evaluated in the Çukurova (2 locations for 3 years) and South-eastern Anatolia (1 location for 2 years) regions. In the South-eastern Anatolia region, the rainfall limits plant growth, while the Çukurova region has much better soil and climatic conditions. Since local climatic variation is significant, each location in each year is treated as a separate environment, to give 8 environments. Linear regression techniques were used to analyse genotype x environment interactions (G x E). The hay yield was significantly different between genotypes and environments, while a genotype x environment interaction was present. The variation amongst environments was highly significant, and the mean hay yield ranged from 7453 kg ha-1, in Doğankent (2002-03), to 2687 kg ha-1, in Balcalı (2003-04). The genotypes 'V7' and 'V12', which had regression coefficients significantly greater than 1.0 and produced mean hay yields above the overall mean, were well adapted to favourable environments. Three entries (V5, V9, and V10) possessed regression coefficients significantly less than 1.0, with hay yield above the grand mean, suggesting that these genotypes were better adapted to poor environments and insensitive to environmental change. Our study demonstrated that previously selected genotypes and cultivars can be successfully grown and make a significantly positive contribution to animal husbandry in the Çukurova and South-eastern Anatolia regions.

Anahtar Kelimeler:

Vica sativa, common vetch, genotype x environment interaction, forage yield stability

Forage Yield Stability of Common Vetch (Vicia sativa L.) Genotypes in the Çukurova and GAP Regions of Turkey

Keywords:

Vica sativa, common vetch, genotype x environment interaction, forage yield stability,

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