Variability and correlations between yield components of soybean (Glycine max (L.) Merr.)
2012
Popović, V., Institute of Field and Vegetable Crops, Novi Sad (Serbia) | Vidić, M., Institute of Field and Vegetable Crops, Novi Sad (Serbia) | Jocković, Đ., Institute of Field and Vegetable Crops, Novi Sad (Serbia) | Ikanović, J., Faculty of Agriculture, Belgrade - Zemun (Serbia) | Jakšić, S., Institute of Field and Vegetable Crops, Novi Sad (Serbia) | Cvijanović, G., Faculty of Biofarming, Bačka Topola (Serbia)
NS soybean cultivars were assessed for variability of and correlations between yield components and the effect of genotype - environment interaction on yield, yield component and morphological characteristics. Experiments were carried out at Rimski Šancevi (Serbia) experiment field in 2009 and 2010. The following characteristics were evaluated: plant height (cm), height of first pod (cm), 1000-grain weight (g), grain yield (kg/ha) and the combined content of oil and protein in grain (%). Combined contents of oil and protein in grain soybean were determined by a nondestructive method of near infrared spectroscopy on PERTEN DA 7000 (NIR/VIS Spectrophotometer). The studied characteristics varied significantly depending on genotype and year. The highest yield of 5273 kg/ha was obtained in 2009 with the genotype Victoria. Highest 1000-grain weights, 2009-2010, were achieved with the genotypes Valjevka and Victoria (149.27 g and 147.23 g). Maximum heights of first pod (19.40 cm) were recorded for the genotype Victoria, 2009-2010. Highest protein contents were obtained with the genotypes Valjevka and Victoria, 2009-2010, were and highest oil contents (21.73%) with the genotype Tea. Protein content was positively significantly correlated with 1000-grain weight and negatively significantly correlated with oil content, and negatively correlated with yield and the height of first pod. Oil content was positively correlated with the height of first pod. Thousand-grain weight was negatively highly significantly correlated with oil content in grain and negatively significantly correlated the height of first pod. The results of this study should facilitate further soybean breeding for improved seed yield and protein and oil contents.
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