Architecture of spring triticale and spring wheat stands at different population densities
Piotr Nieróbca
iung@iung.pulawy.plZakład Uprawy Roślin Zbożowych, Instytut Uprawy, Nawożenia i Gleboznawstwa w Puławach (Poland)
Abstract
Two microplot experiments with spring triticale var. Gabo and spring wheat var. Igna were conducted in Puławy in the years 1994–1996. Three plant densities (300, 450 and 600 plants/m2) were applied. At the full ripeness stage 20 successive plants from the middle part of rows in each plot were taken, and agronomic characters of stand (percentage of plants and shoots of different height, their productivity and the share in yield forming) were determined. At low sowing density spring triticale propagated much better than spring wheat. It produced shorter lateral shoots, especially of third and fourth order irrespective of a sowing rate. In spring triticale, the heads of lateral shoots were developed not as well as those of main shoots, whereas in spring wheat heading was more uniform. In both, spring triticale and spring wheat, the highest grain yield was produced by main shoot heads of well propagated plants, irrespective of population density.
Keywords:
canopy architecture, sowing density, spring wheat, spring triticaleReferences
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Authors
Piotr Nieróbcaiung@iung.pulawy.pl
Zakład Uprawy Roślin Zbożowych, Instytut Uprawy, Nawożenia i Gleboznawstwa w Puławach Poland
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