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Performance of Medicinal Plants and Spices in Coconut Based Agroforestry System

F Ahmed
Department of Horticulture, Bangladesh Agricultural University, Mymensingh

M.A. Rahim
Department of Horticulture, Bangladesh Agricultural University, Mymensingh

M.S. Alam
Department of Horticulture, Bangladesh Agricultural University, Mymensingh

M.A. Hamid
Department of Horticulture, Bangladesh Agricultural University, Mymensingh

K.M.B. Haque
Department of Horticulture, Bangladesh Agricultural University, Mymensingh

Abstract/ Executive Summary:

An experiment was carried out to investigate the performance of the medicinal plants and spices grown under different agroforestry system. The experiment was laid out in randomized complete block design (RCBD) with three replications. The result revealed that the highest plant growth and the best yield (13.46 t ha^-1) in Aloe vera was found in guava and coconut based agroforestry system. But the highest dry matter (5.66 g) of leaves was found in open condition. For the asparagus plant the highest morphological growth and yield of tuberous roots (9.36 t ha^-1) were observed in coconut and lemon based agroforestry system. But number of leaves and dry matter of tuberous roots (19.26 g) performed best in guava and coconut based agroforestry system. For the turmeric plant, the highest weight of primary finger and secondary finger and fresh rhizome and best yield (38.78 t ha^-1) were observed in guava and coconut based agroforestry system. For ginger, weight of primary finger and secondary finger and fresh rhizome and best yield (32.43 t ha^-1) were observed in guava and coconut based agroforestry system. But highest morphological growth was in lemon and coconut based agroforestry system.

Keywords: Medicinal plants, spices, yield and agroforestry system.

Location: Germplasm Centre (GPC) of Fruit Tree Improvement Project (FTIP), Department of Horticulture, Bangladesh Agricultural University, Mymensingh

Start Date: 00-12-2005

End Date: 00-11-2006

Program Area: Farming System

Commodity: Turmeric, Ginger, Coconut, Asparagus, Aloe Vera

Objectives:

1. Studies of medicinal plants and spices help to identify them and also help to know their therapeutic effects and other uses. Aloe vera and asparagus are two important medicinal plants’ while turmeric and ginger are two important spices of our country.

Methodology:

This study was conducted on the existing multilayer garden at the Germplasm Centre (GPC) of Fruit Tree Improvement Project (FTIP), Department of Horticulture, Bangladesh Agricultural University, Mymensingh during December, 2005 to November, 2006 to investigate the performance of medicinal plants and spices in coconut based agrogorestry system. Two medicinal plants e.g. Aloe vera and Asparagus (Asparagus recemosus) and two spices e.g. ginger (Zingiber officinale) and turmeric (Curcuma longa) were laid out on the randomized complete block design (RCBD) with single factor experiment. Twelve treatments were used in this study. Three replications were followed for each treatment for each crop. Total 24 (8×3) plots (3×1m) were set up. Following treatment are: T₁ = Coconut + Guava + Aloe vera, T₂ = Coconut + Lemon + Aloe vera, T₃ = Coconut + Guava + Asparagus, T₄ = Coconut + Lemon + Asparagus, T₅ = Coconut + Guava + Turmeric, T₆ = Coconut + Lemon + Turmeric, T₇ = Coconut + Guava + Ginger, T₈ = Coconut + Lemon + Ginger, T₉ = Aloe vera (open condition), T₁₀ = Ginger (open condition), T₁₁ = Asparagus (open condition), T₁₂ = Turmeric (open condition). Treatment T₁, T₂, T₃, T₄, T₅, T₆, T₇ and T₈, were a three layered canopy configuration consisted of coconut, guava, lemon, medicinal plant and spices. The ground layer was covered by medicinal plants and spices. the second layer had guava and lemon plants which were in full bearing condition. The upper layer was covered by coconut trees. Guava + coconut based agroforestry system which allowed to all 65-75% of PRA, lemon + coconut based agroforestry system which permitted 35-45% of light intensity. In treatment T₉, T₁₀, T₁₁, and T₁₂ sun light was allowed to fall over the medicinal plants and spices without any barrier which was considered as 100% light level. Medicinal plants were planted on 15th December, 2004 and spices were planted on 20th March 2005. Intercultural operations were done as and when necessary throughout the whole growing period. Medicinal plants harvested on middle November, 2005 and spices harvested on late November, 2005 when the leaves turned yellow and started drying up. The collected data form the sample of medicinal plants height, canopy volume, number of leaves/plant, leaf length, dry matter of leaves (g) and yield (t ha^-1). On the other hand data collected from spices were plant height number of leaves, weight of primary finger, weight of secondary finger and yield t ha^-1. The analysis of variance for each of the studied characters was done by F test following randomized completed block design (RCBD).

Source of Information: J. Agrofor. Environ. 1(1): 2007; ISSN 1995-6983

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The result revealed that the highest plant growth and the best yield (13.46 t ha^-1) in Aloe vera was found in guava and coconut based agroforestry system. But the highest dry matter (5.66 g) of leaves was found in open condition. For the asparagus plant the highest morphological growth and yield of tuberous roots (9.36 t ha^-1) were observed in coconut and lemon based agroforestry system. But number of leaves and dry matter of tuberous roots (19.26 g) performed best in guava and coconut based agroforestry system. For the turmeric plant, the highest weight of primary finger and secondary finger and fresh rhizome and best yield (38.78 t ha^-1) were observed in guava and coconut based agroforestry system. For ginger, weight of primary finger and secondary finger and fresh rhizome and best yield (32.43 t ha^-1) were observed in guava and coconut based agroforestry system. But highest morphological growth was in lemon and coconut based agroforestry system.

Knowledge Management: Journal