EVALUATION OF NEW SOYBEAN CUTIVARS UNDER THE CONDITIONS OF CENTRAI- REGION OF IRAQ

Abstract

Five introduced cultivar of soybean (Glvcine max L.) (X-62, M-155, Bisser" Boriane from Bulgaria and Lee-74) were investigated under the condition of central region of Iraq during 2001 and 2002 cultivation season at Al'Zubaidia experimentai station. Yield and yield components and some other agronomic characters were measured. The results showed that varieties Lee-74 and X-62 were surpassed other varieties in seed yield and produced 3078.5 and 2984 kg/ha respectivelr'. These increments are due to the increase of number of pods per plant (128.9 pods) in Lee-74 cultivar , and the increase of 100 seed weight (14.93 g) in X-62, while varietl, M-l55 surpassed other varieties in the number of seeds/pods (2.15 seeds). On the other hand cultivar Bisser showed the shortest period from sowing to flowering (44.5 days) while Boriane had the shortest period of maturit.v (131.3 days). Bisser variety' surpassed others in number of tillers/plant (4.13 tillers). l-ie-lq gave a highest plant height (77.6 cm) wheres the Boriane variety was the shortest (55.5cm).