Effects of seed moisture and the rotary speed of a drum on the germination and vigour of naked and husked oat cultivars
The viability of naked oat seeds can deteriorate during storage resulting in grain that is unsuitable for seed used in sowing the crop in the following year. This rapid deterioration has been linked to damage that occurs during harvest. The objective of the research was to determine the germination and vigour of naked oat seeds of cv. Akt, cv. Cacko, cv. Polar, the strain STH 4659, and husked seeds of cv. Bajka and cv. Skrzat, harvested at the moisture content ranging from 22.9% to 10.9%, subjected to threshing at two rotary speeds of the threshing unit: 1.6 m/s and 2.4 m/s. Seeds threshed manually at the same date were the control. The harvest carried out at the seed moisture content of 21.0% as well as the use of high rotary speed, i.e. 2.4 m/s resulted in a significantly higher number of injuries and, in consequence, a reduction in germination by 27% on average and in vigour by 48% on average of naked cultivars compared with seeds of the traditional cultivars.
Keywordsnaked oat husked oat germination vigour Avena sativa L. harvest management
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