Importance of stand density, inter row spacing, mother and father row distance in corn seed production | Znacaj gustine, medjurednog razmaka i udaljenosti redova roditelja u proizvodnji semena hibridnog kukuruza
2006
Marinkovic, B., Poljoprivredni fakultet, Novi Sad (Serbia) | Crnobarac, J., Poljoprivredni fakultet, Novi Sad (Serbia)
Importance of stand density, mother and father row distance is very important for corn seed production. Inter row spacing from 70, 60, and 50 cm, and their influence on mother grain yield was investigated during 7 years trials. In seed production, at density ratio 6+2, beside inter row spacing, yield influence on stand density was followed as well. Five stand densities (40,800, 52,900, 64,900, 79,400, 89,300), total plant number per ha and density ratio 6+2, was investigated. The following results were obtained: At 70 cm inter row spacing, the highest yield was achieved with the 64,900 plant/ha stand density (4.35 t/ha mother seed). At the first row, yield was higher for 360 and 550 kg/ha in dependence from the second and the third mother row. At 60 cm inter row spacing, yield was increasing till the highest density, and significant difference, in relation to 40,800 plants/ha, was at 79,400 plants/ha stand density. At the second and the third row in relation to the first mother row, yield difference was 430 and 510 kg/ha. The same conclusions can be made at the 50 cm inter row spacing. With the mother row space increasing, yield was decreased for 370 and 460 kg/ha.
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