Metabolic responses of tea (Camellia sp.) to exogenous application of ascorbic acid

Effects of exogenous application of ascorbic acid on physiological and metabolic changes in tea were investigated in the present study. The highest improvement in yield was evident in response to regular application (a day after every harvest) of ascorbic acid at 600 ppm followed by 400 ppm. Foliar...

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Main Authors:	Murugan, Amarchand Chordia, Jibu, Thomas, Rajagopal, Raj Kumar, Mandal, AbulKalamAzad
Format:	Article
Language:	English
Published:	Springer 2012
Subjects:	QK Botany
Online Access:	http://umpir.ump.edu.my/id/eprint/20544/ http://umpir.ump.edu.my/id/eprint/20544/ http://umpir.ump.edu.my/id/eprint/20544/ http://umpir.ump.edu.my/id/eprint/20544/7/Metabolic%20responses%20of%20tea%20%28Camellia%20sp.%29.pdf

id	ump-20544
recordtype	eprints
spelling	ump-205442018-03-01T02:26:20Z http://umpir.ump.edu.my/id/eprint/20544/ Metabolic responses of tea (Camellia sp.) to exogenous application of ascorbic acid Murugan, Amarchand Chordia Jibu, Thomas Rajagopal, Raj Kumar Mandal, AbulKalamAzad QK Botany Effects of exogenous application of ascorbic acid on physiological and metabolic changes in tea were investigated in the present study. The highest improvement in yield was evident in response to regular application (a day after every harvest) of ascorbic acid at 600 ppm followed by 400 ppm. Foliar application of ascorbic acid (600 ppm) at regular intervals enhanced chlorophyll a and b contents besides a significant increase in total polyphenols and catechins when compared to the untreated control. Exogenous application of ascorbic acid at alternate harvesting rounds increased the activity of polyphenol oxidase whereas ascorbate peroxidase remained unchanged. An increase in phenylalanine ammonia lyase activity was noticed with foliar application of ascorbic acid irrespective of its concentrations. Theaflavins and thearubigins of made tea showed an increase when ascorbic acid was applied with 400 and 600 ppm at alternate intervals. The scores of brewed tea liquor characteristics, viz. infusion, color, strength, and briskness were higher even at the lower concentration of ascorbic acid treatment. Results suggest that foliar application of ascorbic acid (400 ppm) proved to be a useful measure to improve the yield, physiological attributes, and antioxidant properties of tea. Springer 2012-03-15 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/20544/7/Metabolic%20responses%20of%20tea%20%28Camellia%20sp.%29.pdf Murugan, Amarchand Chordia and Jibu, Thomas and Rajagopal, Raj Kumar and Mandal, AbulKalamAzad (2012) Metabolic responses of tea (Camellia sp.) to exogenous application of ascorbic acid. Journal of Crop Science and Biotechnology, 1 (15). pp. 53-57. ISSN 1975-9479 https://doi.org/10.1007/s12892-011-0047-x DOI: 10.1007/s12892-011-0047-x
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	QK Botany
spellingShingle	QK Botany Murugan, Amarchand Chordia Jibu, Thomas Rajagopal, Raj Kumar Mandal, AbulKalamAzad Metabolic responses of tea (Camellia sp.) to exogenous application of ascorbic acid
description	Effects of exogenous application of ascorbic acid on physiological and metabolic changes in tea were investigated in the present study. The highest improvement in yield was evident in response to regular application (a day after every harvest) of ascorbic acid at 600 ppm followed by 400 ppm. Foliar application of ascorbic acid (600 ppm) at regular intervals enhanced chlorophyll a and b contents besides a significant increase in total polyphenols and catechins when compared to the untreated control. Exogenous application of ascorbic acid at alternate harvesting rounds increased the activity of polyphenol oxidase whereas ascorbate peroxidase remained unchanged. An increase in phenylalanine ammonia lyase activity was noticed with foliar application of ascorbic acid irrespective of its concentrations. Theaflavins and thearubigins of made tea showed an increase when ascorbic acid was applied with 400 and 600 ppm at alternate intervals. The scores of brewed tea liquor characteristics, viz. infusion, color, strength, and briskness were higher even at the lower concentration of ascorbic acid treatment. Results suggest that foliar application of ascorbic acid (400 ppm) proved to be a useful measure to improve the yield, physiological attributes, and antioxidant properties of tea.
format	Article
author	Murugan, Amarchand Chordia Jibu, Thomas Rajagopal, Raj Kumar Mandal, AbulKalamAzad
author_facet	Murugan, Amarchand Chordia Jibu, Thomas Rajagopal, Raj Kumar Mandal, AbulKalamAzad
author_sort	Murugan, Amarchand Chordia
title	Metabolic responses of tea (Camellia sp.) to exogenous application of ascorbic acid
title_short	Metabolic responses of tea (Camellia sp.) to exogenous application of ascorbic acid
title_full	Metabolic responses of tea (Camellia sp.) to exogenous application of ascorbic acid
title_fullStr	Metabolic responses of tea (Camellia sp.) to exogenous application of ascorbic acid
title_full_unstemmed	Metabolic responses of tea (Camellia sp.) to exogenous application of ascorbic acid
title_sort	metabolic responses of tea (camellia sp.) to exogenous application of ascorbic acid
publisher	Springer
publishDate	2012
url	http://umpir.ump.edu.my/id/eprint/20544/ http://umpir.ump.edu.my/id/eprint/20544/ http://umpir.ump.edu.my/id/eprint/20544/ http://umpir.ump.edu.my/id/eprint/20544/7/Metabolic%20responses%20of%20tea%20%28Camellia%20sp.%29.pdf
first_indexed	2023-09-18T22:29:41Z
last_indexed	2023-09-18T22:29:41Z
_version_	1777416202529800192

Metabolic responses of tea (Camellia sp.) to exogenous application of ascorbic acid

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