sodininkystė ir daržininkystė 25(4)

SODININKYSTË IR DARÞININKYSTË. SCIENTIFIC ARTICLES. 2006. 25(4).
THE DYNAMICS OF SOME ORGANIC SUBSTANCES OF
RED BEET ‘KAMUOLIAI’ AT FLOWERING INDUCTION
AND EVOCATION STAGES
J. B. Ðikðnianienë, P. Duchovskis, P. Viðkelis, O. D. Petronienë
Summary
The variation of organic substances of red beet (Beta vulgaris L. var. Conditiva
Alef.) ‘Kamuoliai’ at flowering induction and evocation stages were investigated
during storage and after planting in a field. Beet plantings were grown in experimental
fields of LIH according to the technologies applied at the Institute. Beet root
crops were stored in storage at the temperature of +1 – +4°C. The samples for
analyses were taken each month (from October up till April). Plantings were planted
in field in May and the samples for analyses were taken every 10 days. The processes
of beet flowering induction continue during all the period of watering, and when
beet plantings are planted in field evocation processes start up. During transitional
period from flowering induction to evocation, hydrolysis of reserve substances,
decrease of the amount of saccharose and total sugar and synthesis of inverted
sugar and nitric substances occur. The ratio of the total sugar and nitrogen during
transition from flowering induction to evocation decreases.
Key words: nitric substances, evocation periods, flowering induction, nitric
substances, red beet, sugars.
260