Increase of carrot's (Daucus carota subsp. sativus) yield and quality after phenolic compounds application
2004
Bystricka, J.,Slovenska polnohospodarska univ. v Nitre (Slovak Republic). Fakulta biotechnologie a potravinarstva, Katedra chemie, Tr. A. Hlinku 2, 949 76 Nitra | Musilova, J. | Trebichalsky, P.
The four years results of the effect of root cofactors and liquid fertilizers with morphoregulatory effects on the carrot yield and its quality and their evaluation are the subject of this work. M-derivate resorcinol more positively influenced the carrot roots yield than o- and p-derivates. The root yield was increased at 23.5% when compared with control variant. From aromatic hydroxyacids the effect of o-derivate, salicylic acid was the highest, in given amount of 50 g/ha which increased the root yield of carrot statistic significantly at 24.3% when compared with control. After stand treatment by salicylic acid expressively increased the content of alpha-carotene (at 62.3%) and C-vitamin (39.8%) and contemporary expressively increased the nitrate accumulation but not over maximal admissible values. After application of resorcinol less expressively increased the content of beta-carotene in roots (from the value 154 mg per kg to the value 233.1 mg per kg) and expressively the content of C-vitamin (at 61.5%) than after salicylic acid application. Contemporary was statistically insignificantly increased the nitrates content. The reached results were got in small plot experiments and their evaluation should be understand in this meaning. The results indicate new ways of research and their application in practice.
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