Effect of sowing rate and sowing date on grain yield and its structure in spring barley cultivars
Kazimierz Noworolnik
iung@iung.pulawy.plZakład Uprawy Roślin Zbożowych, Instytut Uprawy, Nawożenia i Gleboznawstwa w Puławach (Poland)
Danuta Leszczyńska
Zakład Uprawy Roślin Zbożowych, Instytut Uprawy, Nawożenia i Gleboznawstwa w Puławach (Poland)
Abstract
The response of several spring barley cultivars to sowing rate and sowing date was investigated in a microplot experiment in the years 2000–2002. All the cultivars responded with increase of grain yield to the increase of sowing rate (up to 450 seed/m2). The highest effects were recorded for the cultivars Sezam and Granal, the lowest one for the cultivar Blask. At the delayed sowing, the highest decrease of yield showed the cultivar Anabell, Granal and Sezam were most tolerant. Variability of the grain yield, in dependence on the studied factors, was related to differentiation in number of ears per unit area, as the seed number per ear and weight of 1000 seeds did not vary significantly.
Keywords:
cultivars, grain yield, sowing date, sowing rate, spring barleyReferences
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DOI: https://doi.org/10.2135/cropsci1982.0011183X002200040024x
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Authors
Kazimierz Noworolnikiung@iung.pulawy.pl
Zakład Uprawy Roślin Zbożowych, Instytut Uprawy, Nawożenia i Gleboznawstwa w Puławach Poland
Authors
Danuta LeszczyńskaZakład Uprawy Roślin Zbożowych, Instytut Uprawy, Nawożenia i Gleboznawstwa w Puławach Poland
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Copyright (c) 2004 Kazimierz Noworolnik, Danuta Leszczyńska
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