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- Title
SEED YIELD AND PROTEIN CONTENT IN SUNFLOWER DEPENDING ON STAND DENSITY.
- Authors
BALALIĆ, Igor M.; CRNOBARAC, Jovan Ž.; MIKLIČ, Vladimir J.; RADIĆ, Velimir B.
- Abstract
The aim of this research was to investigate the effect of stand density on seed yield and protein content in sunflower hybrids. The field experiment was carried out at Rimski Šanèevi location. Six NS sunflower hybrids were examined. Five hybrids are confectionery (NS Goliat, NS Slatki, NS Gricko, Vranac and Cepko), and one is used for bird food (NS-H-6485). The trial was arranged as randomized complete block design (RCBD) with four replications. Sowing was done with six different densities (from 20,000 to 70,000 plants per hectare, with an increment of 10,000 plants per hectare). Analysis of variance (ANOVA) showed that the effect of hybrid, stand density and hybrid × stand density interaction were highly significant for seed yield and protein content. The highest seed yield, on the basis of average for all densities, was found in NS-H-6485 (4.77 t ha-1) and in NS Gricko (4.43 t ha-1). Average seed yield of hybrids significantly increased up to 50,000 plants per ha-1, when it reached the value of 4.50 t ha-1, and then decreased. Significantly higher protein content, taking into account all stand densities, showed hybrid Cepko (16.94%). Protein content, above the overall average value, was achieved in hybrid Vranac (16.11%). The highest protein content in the average for all six hybrids was at the lowest stand density (20,000 plants per ha-1), and then decreased up to higher densities. The results showed that stand density had significant effect on seed yield and protein content in sunflower hybrids.
- Subjects
SUNFLOWER proteins; SEED yield; SUNFLOWER hybridization; SUNFLOWER seed oil; PLANT spacing
- Publication
Matica Srpska Journal for Natural Sciences, 2016, Issue 130, p93
- ISSN
0352-4906
- Publication type
Article
- DOI
10.2298/ZMSPN1630093B