Susceptibility of hull-less and husked oat seeds to mechanical damage
Maria Moś
khrin@urk.edu.plKatedra Hodowli Roślin i Nasiennictwa, Akademia Rolnicza w Krakowie (Poland)
Andrzej Zieliński
Katedra Hodowli Roślin i Nasiennictwa, Akademia Rolnicza w Krakowie (Poland)
Abstract
The susceptibility of seeds of hull-less oat cultivars (Akt, Cacko, Polar and STH 4659 line) and husked cultivars (Bajka and Skrzat) to mechanical damage caused by mechanical threshing at two rates: 780 and 1760 rpm was investigated. Control seeds were threshed manually at the same time. Macrodamage caused to the hull-less oat seeds was determined taking into consideration the embryo damage, the endosperm damage, and pieces of the seeds. The seeds with the embryo macrodamage and those with the endosperm macrodamage, accounting at high rotary rate for 9.1% and 8.9%, respectively, made the most numerous group. Microdamage done to the hull-less and husked oat seeds was determined using Lugol’s solution. The embryo microdamage, the endosperm microdamage, and the embryo and endosperm microdamage were distinguished. The percentage of damaged seeds in husked cultivars was 2–3 times lower than that in hull-less cultivars. In the latter, the endosperm damage acquired high values, ranging from 29.1% to 31.0%. These cultivars were found to be affected by rotary rate, a rise in which resulted in increasing the percentage of seeds with damaged embryos from 13.7% at 780 rpm to 31.3% at 1760 rpm.
Keywords:
husked oat, hull-less oat, mechanical damageReferences
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Authors
Maria Mośkhrin@urk.edu.pl
Katedra Hodowli Roślin i Nasiennictwa, Akademia Rolnicza w Krakowie Poland
Authors
Andrzej ZielińskiKatedra Hodowli Roślin i Nasiennictwa, Akademia Rolnicza w Krakowie Poland
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