Determination of response of new spring wheat varieties and strains to some agrotechnical factors
Alicja Sułek
iung@iung.pulawy.plZakład Uprawy Roślin Zbożowych, Instytut Uprawy, Nawożenia i Gleboznawstwa w Puławach (Poland)
Abstract
In the years 1999–2002, experiments were conducted in order to determine requirements of some new Polish spring wheat varieties and strains to main agrotechnical factors: sowing term, sowing density and nitrogen fertilization. Differences were shown in response of the strains and varieties to the studied factors and grouping of the wheat varieties was performed. Regarding the response to sowing term, the examined strains were classified into three groups. The first one was represented by: KOC 5500, KOH 1700, KOC 1800 and Korynta, which were sensitive to each delay in planting term. The second group included varieties and strains tolerant to 10 days delay of sowing term (Napola, Zebra, Żura, KOC 5900), and to the third group, tolerating 20 days delay, belonged KOH 2000. Regarding the varieties and strains response to sowing density, they were classified into two groups: the first one requiring low sowing density (Napola, Korynta, Żura, KOC 5500, KOC 5900, KOH 1700, KOH 2000, KOH 1800) and the second one requiring medium sowing density (Zebra). Regarding the varieties and strains response to nitrogen fertilization, they were classified into two groups: one requiring the medium level of fertilization (Korynta, Napola, Zebra, Żura, KOC 5500, KOH 1700, KOH 1800) and the other one requiring high nitrogen doses — KOH 2000 and KOC 5900.
Keywords:
cultivars, strains, grain yield, nitrogen fertilization, seeding rate, seeding date, spring wheat, yield componentsReferences
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Authors
Alicja Sułekiung@iung.pulawy.pl
Zakład Uprawy Roślin Zbożowych, Instytut Uprawy, Nawożenia i Gleboznawstwa w Puławach Poland
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Copyright (c) 2004 Alicja Sułek
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