Effect of Light Intensity on the Growth and Chlorophyll Content of Pennywort (Hydrocotyle Bonariensis Comm. Ex Lam.)

Pennywort (Hydrocotyle bonariensis) is one of the most common vegetables and medicinal herbs used in Malaysia. It was believed to help in wound-healing, blood circulation, and has effects on blood pressure, tumours and depression. Most of the pennyworts used come from the wild or are imported. Lack...

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Main Author:	Lim, Guat Goh
Format:	Thesis
Language:	English English
Published:	2007
Subjects:	Hydrocotyle - Effect of light on - Malaysia.
Online Access:	http://psasir.upm.edu.my/id/eprint/5078/1/FS_2007_52.pdf
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id	my-upm-ir.5078
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spelling	my-upm-ir.50782013-05-27T07:20:15Z Effect of Light Intensity on the Growth and Chlorophyll Content of Pennywort (Hydrocotyle Bonariensis Comm. Ex Lam.) 2007 Lim, Guat Goh Pennywort (Hydrocotyle bonariensis) is one of the most common vegetables and medicinal herbs used in Malaysia. It was believed to help in wound-healing, blood circulation, and has effects on blood pressure, tumours and depression. Most of the pennyworts used come from the wild or are imported. Lack of knowledge regarding the agronomical parameters of this plant may affect the medicinal value of the herb, cause extinction, or loss of foreign exchange in the herb trade. This study examined the effects of light intensities and fertilizers on the growth and chlorophyll content of the pennywort. A 2x3 factorial using complete randomized block design experiment with five replicates was carried out. Thirty boxes (32 cm x 42 cm x 15 cm) of pennywort were fertilized weekly under three fertilizer conditions: organic (50 gm-2), inorganic (12.5 gm-2), and control. They were grown under moderate (542.6 μmols-1m-2) and high (1089.2 μmols-1m-2) light intensities. Results showed that leaf area was the most suitable method to determine growth. The result also exhibited that chlorophyll content in H. bonariensis was maximum in the third week of growth for all treatment. For productivity, H. bonariensis gave higher productivity compared to Centella asiatica. The most significant result was that plant in moderate light intensity was better in all growth aspects and chlorophyll content (p<0.05), except density. However, due to the bigger sized leaves, this disadvantage was negligible. Results showed that rate of fertilizing at 50 gm-2 of organic fertilizer weekly or 12.5 gm-2 inorganic fertilizers weekly was adequate to maintain healthy growth. The experimental results indicate that both organically and inorganically fertilized plants were significantly higher in all growth aspects compared to the control plant (p<0.05). However, there were no significant effects of fertilizers on plant’s chlorophyll content. Hydrocotyle - Effect of light on - Malaysia. 2007 Thesis http://psasir.upm.edu.my/id/eprint/5078/ http://psasir.upm.edu.my/id/eprint/5078/1/FS_2007_52.pdf application/pdf en public masters Universiti Putra Malaysia Hydrocotyle - Effect of light on - Malaysia. Science English
institution	Universiti Putra Malaysia
collection	PSAS Institutional Repository
language	English English
topic	Hydrocotyle - Effect of light on - Malaysia.
spellingShingle	Hydrocotyle - Effect of light on - Malaysia. Lim, Guat Goh Effect of Light Intensity on the Growth and Chlorophyll Content of Pennywort (Hydrocotyle Bonariensis Comm. Ex Lam.)
description	Pennywort (Hydrocotyle bonariensis) is one of the most common vegetables and medicinal herbs used in Malaysia. It was believed to help in wound-healing, blood circulation, and has effects on blood pressure, tumours and depression. Most of the pennyworts used come from the wild or are imported. Lack of knowledge regarding the agronomical parameters of this plant may affect the medicinal value of the herb, cause extinction, or loss of foreign exchange in the herb trade. This study examined the effects of light intensities and fertilizers on the growth and chlorophyll content of the pennywort. A 2x3 factorial using complete randomized block design experiment with five replicates was carried out. Thirty boxes (32 cm x 42 cm x 15 cm) of pennywort were fertilized weekly under three fertilizer conditions: organic (50 gm-2), inorganic (12.5 gm-2), and control. They were grown under moderate (542.6 μmols-1m-2) and high (1089.2 μmols-1m-2) light intensities. Results showed that leaf area was the most suitable method to determine growth. The result also exhibited that chlorophyll content in H. bonariensis was maximum in the third week of growth for all treatment. For productivity, H. bonariensis gave higher productivity compared to Centella asiatica. The most significant result was that plant in moderate light intensity was better in all growth aspects and chlorophyll content (p<0.05), except density. However, due to the bigger sized leaves, this disadvantage was negligible. Results showed that rate of fertilizing at 50 gm-2 of organic fertilizer weekly or 12.5 gm-2 inorganic fertilizers weekly was adequate to maintain healthy growth. The experimental results indicate that both organically and inorganically fertilized plants were significantly higher in all growth aspects compared to the control plant (p<0.05). However, there were no significant effects of fertilizers on plant’s chlorophyll content.
format	Thesis
qualification_level	Master's degree
author	Lim, Guat Goh
author_facet	Lim, Guat Goh
author_sort	Lim, Guat Goh
title	Effect of Light Intensity on the Growth and Chlorophyll Content of Pennywort (Hydrocotyle Bonariensis Comm. Ex Lam.)
title_short	Effect of Light Intensity on the Growth and Chlorophyll Content of Pennywort (Hydrocotyle Bonariensis Comm. Ex Lam.)
title_full	Effect of Light Intensity on the Growth and Chlorophyll Content of Pennywort (Hydrocotyle Bonariensis Comm. Ex Lam.)
title_fullStr	Effect of Light Intensity on the Growth and Chlorophyll Content of Pennywort (Hydrocotyle Bonariensis Comm. Ex Lam.)
title_full_unstemmed	Effect of Light Intensity on the Growth and Chlorophyll Content of Pennywort (Hydrocotyle Bonariensis Comm. Ex Lam.)
title_sort	effect of light intensity on the growth and chlorophyll content of pennywort (hydrocotyle bonariensis comm. ex lam.)
granting_institution	Universiti Putra Malaysia
granting_department	Science
publishDate	2007
url	http://psasir.upm.edu.my/id/eprint/5078/1/FS_2007_52.pdf
_version_	1747810346148560896

Effect of Light Intensity on the Growth and Chlorophyll Content of Pennywort (Hydrocotyle Bonariensis Comm. Ex Lam.)

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