The reaction of naked and hulled oat on growth regulators treatment at different nitrogen regimes
Robert Maciorowski
wksir@zut.edu.plZakład Doświadczalnictwa, Katedra Uprawy Roli, Roślin i Doświadczalnictwa, Akademia Rolnicza w Szczecinie (Poland)
Krystyna Werwińska
Hodowla Roślin „Strzelce” Sp. z o.o. (Poland)
Zygmunt Nita
Hodowla Roślin „Strzelce” Sp. z o.o. (Poland)
Sławomir Stankowski
Zakład Doświadczalnictwa, Katedra Uprawy Roli, Roślin i Doświadczalnictwa, Akademia Rolnicza w Szczecinie (Poland)
Abstract
Field plot experiments were conducted in the years 2002–2004 with the following factors: growth regulators (Cycocel 750 SL — chloromequat chloride, Moddus 250 EC — trinexapac-ethyl and control); nitrogen doses (60, 90 (60+30), 120 (60+30+30) kg N/ha), oat varieties (Akt (naked) and Sławko (hulled)). In the absence of lodging, growth regulators Moddus and Cycocel inconsiderably affected grain yield, depending on weather conditions during vegetation, mainly soil water capacity. The increased nitrogen treatment, from 60 to 120 kg N/ha, caused higher grain yield only in the high rainfall years. The low yielding capacity of naked oat is the main factor restricting the increase of its cultivation area. Lowered grain germination and filling of naked oat are responsible for lower yielding ability in comparison with the conventional oat.
Keywords:
grain yield, growth regulators, naked oat, nitrogen fertilization, yield componentsReferences
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Authors
Robert Maciorowskiwksir@zut.edu.pl
Zakład Doświadczalnictwa, Katedra Uprawy Roli, Roślin i Doświadczalnictwa, Akademia Rolnicza w Szczecinie Poland
Authors
Krystyna WerwińskaHodowla Roślin „Strzelce” Sp. z o.o. Poland
Authors
Zygmunt NitaHodowla Roślin „Strzelce” Sp. z o.o. Poland
Authors
Sławomir StankowskiZakład Doświadczalnictwa, Katedra Uprawy Roli, Roślin i Doświadczalnictwa, Akademia Rolnicza w Szczecinie Poland
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Copyright (c) 2006 Robert Maciorowski, Krystyna Werwińska, Zygmunt Nita, Sławomir Stankowski
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