Determination of agrotechnical requirements for new winter wheat strains
Grażyna Podolska
iung@iung.pulawy.plZakład Uprawy Roślin Zbożowych, Instytut Uprawy Nawożenia i Gleboznawstwa, Puławy (Poland)
Jan Mazurek
Zakład Uprawy Roślin Zbożowych, Instytut Uprawy Nawożenia i Gleboznawstwa, Puławy (Poland)
Grzegorz Stypuła
Zakład Uprawy Roślin Zbożowych, Instytut Uprawy Nawożenia i Gleboznawstwa, Puławy (Poland)
Abstract
In the years 1998–2000 experiments were conducted with purpose to determine requirements of some new winter wheat strains to main agrotechnical factors: sowing term, sowing density and nitrogen fertilization. Differences were shown in response of the strains to the factors and grouping of the wheat objects was performed. As regards to the response to sowing term, the examined strains were classified into three groups: the first represented by one strain sensitive to delay of sowing (BOA 397), the second group with strains tolerant to 14 days delay of sowing term (SMH 2297, SMH 2497, SMH 3398 and SMH 3498) and the third group of strains insensitive to the sowing delay (AND 2298 and MIB 798). As regards to the response to sowing density, the strains were classified into two groups: the first one requiring low sowing density (AND 2298, MIB 798, SMH 2497, SMH 3398) and the second one requiring medium sowing density (BOA 397, SMH 2297 and SMH 3498). As regards to the response to nitrogen fertilization, the strains were classified into two groups: one requiring a medium level of fertilization (AND 2298, MIB 798, SMH 2497, SMH 3398) and the other one for wheats requiring high nitrogen doses (BOA 397, SMH 2297, SMH 3498).
Keywords:
grain yield, nitrogen fertilization, sowing density, sowing term, species, winter wheat, yield componentsReferences
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Authors
Grażyna Podolskaiung@iung.pulawy.pl
Zakład Uprawy Roślin Zbożowych, Instytut Uprawy Nawożenia i Gleboznawstwa, Puławy Poland
Authors
Jan MazurekZakład Uprawy Roślin Zbożowych, Instytut Uprawy Nawożenia i Gleboznawstwa, Puławy Poland
Authors
Grzegorz StypułaZakład Uprawy Roślin Zbożowych, Instytut Uprawy Nawożenia i Gleboznawstwa, Puławy Poland
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Copyright (c) 2001 Grażyna Podolska, Jan Mazurek, Grzegorz Stypuła
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