PJB-2002-26
STABILITY ANALYSIS OF SEED YIELD IN WINTER TYPE RAPESEED (BRASSICA NAPUS) VARIETIES
NAAZAR ALI, FARZAD JAVIDFAR AND AHMAD ALI ATTARY
Abstract
Twelve winter type rapeseed varieties of Brassica napus were evaluated at 10 different locations in mild cold and cold regions of Iran for stability parameters of grain yield. Genotype x Environment interaction was significant indicating the influence of environment on grain yield. The linear component has major contribution towards differences in stability of genotypes. A top yielding genotype SLM-046 was found a stable cultivar for grain yield. Genotypes Regent x Cobra and A.W. are suitable for favourable environments, whereas PF-7045/91 and Eureka are suitable for poor environment. Variety Cobra is unpredictable across the environments.
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