The influence of crop density on hybrid corn grain yield of different FAO maturity groups | Uticaj gustine useva na prinos zrna hibrida kukuruza različitih FAO grupa zrenja
2006
Živanović, Lj., Poljoprivredni fakultet, Beograd - Zemun (Serbia) | Nenadić, N., Poljoprivredni fakultet, Beograd - Zemun (Serbia) | Nedić, M., Poljoprivredni fakultet, Beograd - Zemun (Serbia) | Kolarić, Lj., Poljoprivredni fakultet, Beograd - Zemun (Serbia)
In two-year period testing of crop density influence on hybrid corn grain yield with different length of vegetation period were carried out. As seeds, 11 perspective corn hybrids with different FAO maturity groups (FAO 400 - ZPSC 434 and PR36 B08; FAO 500 - KWS Luce, LG Aliacan, AGS 500 and GP Rodna; FAO 600 - NS 6010 and PR34 B23; FAO 700 - AGS IN 730, AGS 83A and KWS Kermes) were used from domestic as well as foreign breeding companies present on our market. The hybrids were grown in the recommended (optimal) density (G2) for its FAO maturity group then in crop density of 10,000 plants/ha less (G1) and in crop density of 10,000 plants/ha more (G3) then optimum. Tests were carried out using open field micro tests under agroecological conditions of South Banat (Serbia) and under normal weather regime. The tests were carried out on calcareous chernozem soil type using split-plot method in three replication. Obtained results showed the significant differences in grain yield among tested hybrids as well as the differences inside individual hybrids densities. Significant interaction between hybrid and crop densities was determined.
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