Investigating the effect of Spray application of potassium and calcium nanofertilizers on the amount of kaempferol and cichoric acid in chicory (Cichorium intybus L.) cultivars

Document Type : Research

Authors

1 Research Assistant Professor of Rice Research Institute of Iran, Agricultural Research, Education and Extension Organization (AREEO), Rasht, Iran

2 Professor, Department of Agriculture, Faculty of Agricultural Sciences, University of Gilan. Rasht

10.22092/rhsj.2025.366602.1104

Abstract

In order to determine the effect of Spray application of potassium and calcium nanofertilizers on the quality characteristics of chicory cultivars, the experiment was conducted in complete randomized block design with 32 treatments and 3 repetitions in 2016 at the Rice Research Institute of Iran (Rasht). In this experiment, the first factor, eight cultivars of Cichorium (indigenous landrace of northern Iran, Kashan, Urmia, Sistan and Baluchestan, Tilda, hickory, Orkis, Modified Hungarian cultivar) and the second factor was nanofertilizers use (nano-Kchelate (20.00), nano-Full micro chelate (20.00), nano-Cachelate (20.00), plus a zerocontrol treatment. The comparison of the mean treatments showed that the Modified Hungarian and Tilda genotypes have the highest amount of kaempferol (19.38 and 18 %) and proline content (4.66 and 4.45 μmol. g-1 fresh weight). Chicory indigenous landrace had lower proline content.The highest amount of kaempferol (15.07%) were obtained with the use of nano-Cachelate and the highest proline content (4.15 μmol.g-1fresh weight) was obtained in the control treatment. The comparison of the mean interaction effect showed that modified and Tilda genotypes with foliar application of Ca-nanochelate had the highest amount of cichoric acid (20.33 and 20 %) and total fructose content (16.6 and 16.33 %respectivly). Tilda genotype had the highest root yield (4114 kg.ha-1) and inulin content (13.6%) with the use of Ca-nanochelate. The lowest amount of inulin (7.06%) was obtained in the Sistan and Baluchistan and indigenous landrace of northern Iran without the use of nanofertilizers. Based on the results of this experiment, it seems that according to the amount of kaempferol, root yield and inulin content and the high nutritional, medicinal and industrial value of inulin, by using Tilda genotype with spraying of nanofertilizers, It is possible to take steps towards obtaining valuable resources for the commercial production of kaempferol and the amount of inulin inside the country.

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Research in Horticultural Sciences
Volume 3, Issue 1
September 2024
Pages 123-138

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