Two wheat (Triticum aestivum L.) genotypes were evaluated over two seasons (2017/2018 and 2018/2019), at three locations in the irrigated scheme of Newhalfa, Sudan, to study the inter-relationships between yield, yield components and other agronomic traits of the genotypes. A randomized complete block design with three replications was used. Data were collected on grain yield, some of its components and other growth attributes, simple correlation coefficients among these traits were calculated. The results attained showed that, at most of the testing sites, number of grains per plant, number of spike lets per plant and spike length were significantly positively correlated with grain yield of the crop, and among each otherâ€™s. On the other hand, the growth attributes with exception of the plant height were significantly positively correlated with each other and negatively correlated with yield and its components at most of the testing environments. Over all, plant height, number of tillers per plant number of spike lets per spike, number of grain per plant, spike length and 1000-grain weight had high positive correlation with yield, thus direct selection for these characters, would improve grain yield of the crop.
Keywords: Triticum, aestivum, Wheat, correlation coefficients, yield, and growth attributes.