Variations In Levels Of Cocoyam Leaf Secondary Metabolites After Treatment With Concentrations Of Turmeric Extract Elicitor:- Uka, Wisdom C.
ABSTRACT
Plant secondary metabolites are mainly produced
to protect plants from environmental stress and these metabolites are produced
in small quantities. An attempt was made to increase host defence in cocoyam
using turmeric extract sprayed at high concentrations to induce stress and
stimulate increased production of defensive secondary metabolites. Cocoyam
planted in pots in green house were sprayed for 3days with lOml/day of 1% and
5% turmeric acetone extract dissolved in 20% methanol containing 2 drops of
tween-20 per 10ml. 3days after spraying, the phytochemical content ofthe
cocoyam leaves before and after spraying were determined. Tween-20 and methanol
sprays were used on the control cocoyam groups respectively under the same
experimental conditions. The results of activities of 1% and 5% turmeric
extract on phytochemical contents revealed significant (P< 0.05) raise when
compared with the controls. One percent concentration gave a raise of4%
(anthocyanins), 3% (phenols) and 1% (tannins). While 5% concentration gave
8%(anthocyanins), 8%(tannins) and 4% (phenols). However, there were no
significant (P> 0.05) differences in the raise caused by both 1% and 5%
concentrations in the levels of alkaloids and flavonoids. These results showed
turmeric given al high concentration to plants via foliar application can
induce increased phytochemical levels in cocoyam. Preliminary phytochemical
evaluation based on visual assessment showed more of the phytochemical to be
present in the acetone extract giving tannins, alkaloids and saponins to be
present in moderate concentration while phenols were in high concentration.
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UKA, C (2023). Variations In Levels Of Cocoyam Leaf Secondary Metabolites After Treatment With Concentrations Of Turmeric Extract Elicitor:- Uka, Wisdom C.. Repository.mouau.edu.ng: Retrieved Nov 24, 2024, from https://repository.mouau.edu.ng/work/view/variations-in-levels-of-cocoyam-leaf-secondary-metabolites-after-treatment-with-concentrations-of-turmeric-extract-elicitor-uka-wisdom-c-7-2
CHIJIOKE, UKA. "Variations In Levels Of Cocoyam Leaf Secondary Metabolites After Treatment With Concentrations Of Turmeric Extract Elicitor:- Uka, Wisdom C." Repository.mouau.edu.ng. Repository.mouau.edu.ng, 11 Dec. 2023, https://repository.mouau.edu.ng/work/view/variations-in-levels-of-cocoyam-leaf-secondary-metabolites-after-treatment-with-concentrations-of-turmeric-extract-elicitor-uka-wisdom-c-7-2. Accessed 24 Nov. 2024.
CHIJIOKE, UKA. "Variations In Levels Of Cocoyam Leaf Secondary Metabolites After Treatment With Concentrations Of Turmeric Extract Elicitor:- Uka, Wisdom C.". Repository.mouau.edu.ng, Repository.mouau.edu.ng, 11 Dec. 2023. Web. 24 Nov. 2024. < https://repository.mouau.edu.ng/work/view/variations-in-levels-of-cocoyam-leaf-secondary-metabolites-after-treatment-with-concentrations-of-turmeric-extract-elicitor-uka-wisdom-c-7-2 >.
CHIJIOKE, UKA. "Variations In Levels Of Cocoyam Leaf Secondary Metabolites After Treatment With Concentrations Of Turmeric Extract Elicitor:- Uka, Wisdom C." Repository.mouau.edu.ng (2023). Accessed 24 Nov. 2024. https://repository.mouau.edu.ng/work/view/variations-in-levels-of-cocoyam-leaf-secondary-metabolites-after-treatment-with-concentrations-of-turmeric-extract-elicitor-uka-wisdom-c-7-2