| Pak. J. Bot., 26(2): 367-371,1994. | Back to Contents | ||||
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STABILITY PERFORMANCE OF SUNFLOWER CULTIVARS F.P. XANTHOPOULOS Abstract: This research evaluated the stability performance of sunflower cultivars in two groups of regional trials in the Northeast part of Greece. Genotype-environment interaction was measured by Ihe linear response to environmenl effects and by the deviation from linear response. The data from the two groups of cultivars showed thaI only two hybrids were stable for seed yield across the examined environments. An open pollinated variety and a hybrid that was used as checks, displayed unstable performance. The majority of sunflower cultivars followed linear response to the environmental effects. However, the unpredictable component of the genotype-environment interaction variance i.e., the deviation from the linear response, ad high variation and much more importance than the predictable component. National Agricultural Research Foundation, Cotton & Industrial Plants Institute, 57400 Sindos, Thessaloniki, Greece. |
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