SEED QUALITY OF PREMIER CULTIVAR OF HUNGARIAN CLOVER IN THE CONDITIONS OF WESTERN SIBERIA
https://doi.org/10.26898/0370-8799-2018-3-5
Abstract
The work presents the results of comparative study of the new fodder crop Premier cultivar of Hungarian clover Trifolium pannonicum Jacq., its seed quality and contamination with fungal infection, given that it is grown in different weather conditions, and harvested and stored by different methods. The research was carried out in two agroclimatic subzones of the forest-steppe zone of Novosibirsk region: moderately warm humid (GTK 1.2-1.4) and moderately warm insuffi ciently humid (GTK 1.0-1.2). In both subzones the mass of 1000 seeds in mid-humid and humid seasons varied from 4.0 to 4.6 g, and in extremely dry season it decreased to 3.7 g. A positive relation (r=0.96) between the seed mass and precipitation in the ripening phase was revealed. The infl uence of weather conditions on the unscarifi ed seed sowing qualities was most evident in the humid subzone, where a positive relation (r=0.83) between germinating ability and precipitation in the fl owering phase was revealed. In dry and insuffi ciently humid seasons, only in this phase hard seeds predominated in the seed material (77-90%) and their germinating ability in the laboratory conditions did not exceed 19%. In the year with excessive humidity, the share of germinating seeds increased to 75%. In the insuffi ciently humid subzone there were 4-6 times more germinating seeds (37- 60%), and the difference in their germinating adility by years was not so signifi cant. Combine harvesting, which causes partial seed scarifi cation, increased germinating ability by 13-20%. When these seeds were stored at room temperature, there was an annual reduction in seed hardness by 23-30% and an increase in barren seeds. Germinating ability of unscarifi ed seeds retained longer by years. Fungal infection in Premier cultivar of Hungarian clover seeds was detected. In the dry year fungi g. Cladosporium predominated, in the wet year – g. Alternaria, in the mid-humid years there were fungi of both genus and their mixtures.
About the Authors
E. V. Bogolyubova
Siberian Federal Scientific Center of Agro-BioTechnologies of the Russian Academy of Sciences
Russian Federation
Russian Federation
Candidate of Science in Biology, Lead Researcher,
Krasnoobsk, Novosibirsk region, 630501
N. M. Konyaeva
Siberian Federal Scientific Center of Agro-BioTechnologies of the Russian Academy of Sciences
Russian Federation
Russian Federation
Candidate of Science in Agriculture, Senior Researcher,
Krasnoobsk, Novosibirsk region, 630501
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Review
For citations:
Bogolyubova E.V., Konyaeva N.M. SEED QUALITY OF PREMIER CULTIVAR OF HUNGARIAN CLOVER IN THE CONDITIONS OF WESTERN SIBERIA. Siberian Herald of Agricultural Science. 2018;48(3):34-42. (In Russ.) https://doi.org/10.26898/0370-8799-2018-3-5
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