engleski

Effect of irrigation, N fertilization and genotype to starch concentration in maize grain

Influences of irrigation rates (A1= non- irrigated, A2 = irrigation starting on level of 60% field water capacity or FWC ; A3 = irrigation starting on level of 80% FWC), nitrogen (N) fertilization (0, 100 and 200 kg N ha-1, for the B1, B2 and B3, respectively) and genotype (maize hybrids: OSSK 596, OSK 617, OSSK 602 and OSSK 552) on oil content in maize grain were tested under field conditions on Osijek eutric cambisol during four growing seasons (2006-2009). Depending on the year, oil contents in maize grain were in ranges from 3.44% to 4.20%, irrigation effects resulted by non-significant differences, N fertilization increased oil contents only in 2007 (3.54% and 3.66%, for the control and B3, respectively), while differences among the hybrids were mainly significant but under considerable environmental influences.

irrigation of maize ; nitrogen fertilization ; protein content

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