engleski

Agronomic performance evaluation of domestic and foreign soybean germplasm

The collaboration and interchange of breeding materials between breeding programs worldwide is necessary and important in order to increase the amount of genetic diversity, incorporating unique (foreign) germplasm into existing (domestic) germplasm. As part of the scientific collaboration between soybean breeding program of the Agricultural Institute Osijek-AIO (Croatia) and the University of Guelph (Canada), 15 soybean cultivars released by the Institute (OS-cultivars) and 15 cultivars released by the University (CA-cultivars) were tested in two mega environments: Croatia and Canada. This paper presents an evaluation of the agronomic performance of tested cultivars for mega-environment Croatia, only. Field trials were conducted at the experimental field of the Agricultural Institute Osijek over period from 2002 to 2005 year. Several quantitative traits (vegetation period, yield components, level and stability of grain yield, adaptability, lodging resistance, field tolerance on P. manshurica) were analyzed. The obtained results indicated higher agronomic values of OS-cultivars in relation on agronomic values of CA- cultivars. Among 15 tested CA-cultivars, five cultivars (OAC Millennium, OAC Champion, OAC Bayfield, OAC Auburn, OAC Wallace) were identified as the most favorable for parental components in hybridization with OS-cultivars. Thereby, will be enable incorporating diversity through new germplasm into existing germplasm as well as developing new segregated populations from which to select new, genetic improved soybean lines.

soybean ; domestic germplasm ; soybean ; domestic germplasm ; foreign germplasm ; grain yield ; stability ; adaptability ; genetic diversity ; hybridizationgermplasm ; grain yield ; stability ; adaptability ; genetic diversity ; hybridization.

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