Preliminary Study on the Effect of Nitrogen and Potassium Fertilization on Phytochemical Content Quality of Gynura procumbens
Gynura procumbens is an herbaceous plant. Despite the progressive reports on the pharmacological properties, many are overlooking at the importance of agronomic requirements, such as fertilization, to produce high phytochemical content which have not been conclusively concluded. The study was car...
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Main Authors: | , , , , |
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Format: | Article |
Language: | English |
Published: |
UTM Press
2021
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Subjects: | |
Online Access: | http://ir.unimas.my/id/eprint/35953/1/gynura1.pdf http://ir.unimas.my/id/eprint/35953/ https://mjfas.utm.my/index.php/mjfas/index https://doi.org/10.11113/mjfas.v17n4.2053 |
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Institution: | Universiti Malaysia Sarawak |
Language: | English |
Summary: | Gynura procumbens is an herbaceous plant. Despite the progressive reports on the
pharmacological properties, many are overlooking at the importance of agronomic requirements, such
as fertilization, to produce high phytochemical content which have not been conclusively concluded.
The study was carried out to examine the effects of N and K interaction on physiological and
phytochemical quality; to identify compositions of phytochemicals, and to determine marker
compounds. Physiological and phytochemical attributes were recorded in three harvests of triplicate
samples to exhibit the trend for plant quality, and statistically analyzed. Generally, N and K interaction
have affected phytochemical content significantly (p<0.05) with stronger effect on physiological and
biochemical attributes (p<0.01). The results have demonstrated that the following combination of
fertilizer, 0 kg/ha N and 30 kg/ha K; and 90 kg/ha N and 0 kg/ha K are high and low, respectively
affecting metabolite content in the plant. Lowest rate of N, moderate of K had produced significant
phytochemical contents. Meanwhile, caffeic acid and kaempferol were demonstrated as marker
compounds in this study. Thus, phytochemical content can be further established through the
selection of appropriate N and K rates and proper abiotic stress interaction. |
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