Resistance of husked and naked oat seeds to mechanical damage
Aleksander Szmigiel
kszur@urk.edu.plKatedra Szczegółowej Uprawy Roślin, Akademia Rolnicza w Krakowie (Poland)
Andrzej Złobecki
Katedra Podstaw Budowy Maszyn, Akademia Rolnicza w Krakowie (Poland)
Abstract
The paper presents an assessment of resistance to mechanical damage for two oat cultivars: husked Chwat and naked Akt. The oats were cultivated in 2001 under diverse site conditions: in the vicinity of Krakow on very good wheat soil complex (degraded chernozem on loess) and in the Sądecka Basin on 365 m a.s.l. on a mountain wheat soil complex (brown soil). The both oat cultivars were grown as pure cultures and in mixtures with spring barley. The assessment of grain resistance to mechanical damage was carried out by means of grain crushing between two steel plates in the system programmed by Mohsein (Kolowca, 1979). The seeds were crushed furrow down. The strength value was registered when the damage appeared. The measurements were made on 400 seeds for each object. The obtained strength value distributions were compared with a series of popular statistic distributions useful in experimentation (Ślipek, 1987). The highest compatibility parameters were obtained for the Weibull distribution. The parameters of this distribution were determined by application of non-linear estimation, while comparisons between distributions among samples were done graphically. The results of strength measurements within the microdamage range for the husked grain (Chwat cv.) changed significantly depending on cultivation conditions. The naked seed (Akt cv.) strength was independent on the cultivation conditions.
Keywords:
husked oat, naked oat, mechanical damage of seedsReferences
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Authors
Aleksander Szmigielkszur@urk.edu.pl
Katedra Szczegółowej Uprawy Roślin, Akademia Rolnicza w Krakowie Poland
Authors
Andrzej ZłobeckiKatedra Podstaw Budowy Maszyn, Akademia Rolnicza w Krakowie Poland
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Copyright (c) 2003 Aleksander Szmigiel, Andrzej Złobecki
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