Effect of different levels of humic acid on growth and physiological parameters of Coriander (Coriandrum sativum L.)

Sharifirad, M. (2018) Effect of different levels of humic acid on growth and physiological parameters of Coriander (Coriandrum sativum L.). Masters thesis, university of zabol.

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Abstract

Coriander (Coriander sativum L.) is an important plant in Apiaceae family and has many medical uses. In this research the effects of humic acid on some physiological and growth parameters and antioxidant activity of C. sativum were studied in sistan region. Treatment includes humic acid application on at leaf stage at 4 levels ; 0 (Control): 1,2, and 3 Kg ha- 1. Trait including stem Lengt , stem diameter, root Length , fresh weight root, dry weight root, Leaf fresh weight, dry weight of Leaf, number of Lateral branches, sead weight, photosynthetis pigments, phenolic, flavonoids and anthocyanin Compounds amount. The total phenolic Contents of the methanolic extracts were determinal by Folin- Ciocalteu method and the antioxidant activity was evaluated using DPPH (2,2-diphenyl-1- picrylhydrazyl) assay.the statistical results showed significant effects of humic acid on growth and physiological parameters and antioxidant activity of C.sativum. Humic acid application results showed that the highest chlorophyll a and b content obtained in 2 Kg ha-1 of humic acid the least was in control. The results suggested application of 1 Kg ha-1 humic acid is the best treatment in the production of C. sativum under organic condition in sistan region. The result of this study showed methanolac extract of leaf and stem of C. sativum has strong antioxidant activity.

Item Type: Thesis (Masters)
Uncontrolled Keywords: physiological parameteas, Coriandrum sativum L., Humic substance
Subjects: Q Science > QH Natural history > QH301 Biology
Depositing User: Mrs najmeh khajeh
Date Deposited: 26 Nov 2018 05:16
Last Modified: 10 Mar 2019 09:53
URI: http://eprints.uoz.ac.ir/id/eprint/2290

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