Journal of Food, Agriculture and Environment

Influence of seed’s biological traits of oat on next seed generation in organic farming

Author(s):

Ivana Capouchová ¹*, Petr Konvalina ², Hana Honsová ¹, Zdeněk Stehno ³, Radovan Chaloupský ¹

Recieved Date: 2012-02-15, Accepted Date: 2012-05-04

Abstract:

Lately, the organic cereals field has been progressively developing. A limitation of conventional untreated seed application plays an important role there. On the other hand, there has been a longtime deficiency of certified organic seeds. Therefore, oat was experimentally used as a model crop in order to demonstrate results of the assessment of particular biological traits of various seed categories (certified organic, conventional untreated, farm). The seeds’ biological traits (energy of germination, germination, energy of emergence, emergence, thousand grain weight - TGW) were assessed before seeding and the impact of the seed quality on the grown seeds was also studied. Small-plot trials including four varieties of naked and hulled (common) oat were set up in three localities in the Czech Republic between 2010 and 2011. As for the quality of the seeds serving for the establishment of the small- plot trials, the conventional untreated seeds proved the highest quality for the energy of germination (86.3%), the germination (88.3%), the energy of emergence (72.8%), the emergence (79.1%) and the TGW (31.9 g). On the other hand, as for the organic seeds, these originating from the certified organic crop stands proved the highest quality for the energy of germination (90.4%), the germination (92.6%), the energy of emergence (79.4%), the emergence (85.8%) and the TGW (30.8 g), just as these originating from the farm crop stand  the energy of germination (90.2%), the germination (88.3%), the energy of emergence (79.2%), the emergence (85.4%) and the TGW (30.4 g). The energy of germination, the germination and the energy of laboratory emergence were (p<0.05) influenced by a locality factor (ANOVA). The impact of the other factors was not significant, however, as the research results demonstrated an obvious trend. Moreover, the correlation analysis demonstrated an obvious positive correlation (r = 0.65-0.95) between the individual parametres of hulled oat (the energy of germination, the germination, the energy of emergence and the emergence). Correlations between the TGW and the energy of emergence (r = 0.69), just as the emergence (r = 0.60), were also proved by the test. As for naked oat, close correlations were detected between the tested parameters of the germination and the emergence. On the other hand, any correlation between the TGW and the emergence was statistically not significant and weak. The organic seeds originating from the certified organic crop stands proved the best biological characteristics. The farm oat seeds achieved a good qualitative level too. If the conventional untreated seeds are banned in the organic farming system, the rare organic oat seeds might be substituted by the farm oat seeds.

Keywords:

Organic farming, seed, germination, emergence, naked oat, hulled oat

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Journal: Journal of Food, Agriculture and Environment
Year: 2012
Volume: 10
Issue: 2
Category: Agriculture
Pages: 551-555

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