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Evaluation of Two Brinjal Cultivars in Goraneem Based Agroforestry System

M. Omar Ali
Department of Agroforestry, Bangladesh Agricultural University, Mymensingh

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

M.S. Bari
Department of Agroforestry, Hajee Mohammad Danesh Science and Technology University, Dinajpur

M.A. Mondol
Department of Agroforestry, Bangladesh Agricultural University, Mymensingh

Abstract/ Executive Summary:

The present study was conducted to evaluate the performance of two brinjal cultivars in Goraneem (Melia azedarach) based agroforestry system. The experiment consisted of two cultivars viz., Singnath and Kantabegun and three cropping system viz., sole cropping, goraneem + lemon based multistoried cropping system and goraneem + guava based three layered agroforestry system. In the three layered cropping systems, goraneem was planted as upperstorey multipurpose trees, guava and lemon was established as middlestorey fruit crops and brinjal was cultivated as groundstorey crops. The study revealed that both the cultivars produced maximum yield in sole cropping and cultiver singnath showed better performance than kantabegun. Yield of singnath and kantabegun cultivars were significantly higher in Goraneem + lemon based agroforestry system (18.49 t/ha and 14.47 t/ha) than Goraneem +Guava based agroforestry system (1.6 t/ha and 5.6 t/ha). Though the plant height and length of leaves were the highest in multistoried agroforestry system but all other parameters were significantly lower than that of sole cropping. The cultivar Kantabegun was found to be the best, as judged, which was followed by Singnath under multistoried agroforestry system. The economic analysis showed that multistoried cropping of cultivar Kantabegun with goraneem+lemon was beneficial in terms of total net return from a unit area and time.

Keywords: Goraneem, Lemon, Guava, Agroforestry system, Brinjal

Location: Germplasm centre of Department of Horticulture, Bangladesh Agricultural University, Mymensingh

Start Date: 00-10-2006

End Date: 00-04-2007

Program Area: Farming System

Commodity: Brinjal, Indian lilac (Neem)

Objectives:

1. Integration of annual crops with fruit and timber trees have shown quite encouraging response in term of multiple out put with assured income generation. Brinjal (Solanum melongena L.) is one of the principal vegetables commonly cultivated in Bangladesh. Keeping in view the above mentioned advantages, a study was initiated with goraneem as upperstorey, guava and lemon as middlestorey component and two brinjal cultivar as groundstorey components with the objectives to find out a suitable multilayered agroforestry production system for Bangladesh condition.

Methodology:

The experimental site is situated under tropical monsoon climate characterized by heavy rainfall during the months from April to September and then scantly rainfall during the rest period of the year. The soil texture was sandy loam with a pH 5.8-6.8. The structure of the soil was fine and the organic matter content was 1.80%. Two cultivars of brinjal (Solanum melongena L) V₁ Singnath and V₂ (Kantabegun) were used and each cultivars were laid out using a Randomized Complete Block Design (RCBD) under three treatments and with three replications. Treatments were : (a) T₁ = Brinjal cultivar under full sunlight (open condition) (b) T₂ = Goraneem + Lemon + Brinjal cultivar (c) T₃ = Goraneem + Guava + Brinjal cultivar In treatment T₁ sunlight was allowed to fall over the vegetables without any barrier which was considered as 100 percent light level. Treatment T₂ was a three layered canopy configuration consisted of goraneem, lemon and brinjal. The brinjal was in ground layer. The middle layer consisted with 5 years old lemon plants which were in fruiting condition (spacing 3m×m) and upper layer occupied by Goraneem (spacing 6m×6m). Like T₂, T₃ were also a three layered, Only exception in middle layer which was occupied by six years old guava plants (spacing 3m×3m) and were in full bearing condition. Both Brinjal cultivars seedlings were collected from USDA Allium field lab, BAU, Mymensingh. The seedlings of brinjal were transplanted on 16 October, 2006, maintaining the spacing of 60cm×50cm. Recommended doses of fertilizer were used for the brinjal. The experimental plots were kept weeds free by weeding frequently. The plots were irrigated whenever needed by using hose pipe and watering cane. Brinjal harvesting was started at 90 days after planting and continued up to 125 days. Economics of various treatments was calculated taking into account the current costs of inputs and produce. The data on various growth and yield performance characters of the tested brinjal cultivars were statistically analyzed to examine the significant variation of the results due to different shading condition. The analysis of variance for each of the studied character was done by F (Variance ratio) test following Randomized Complete Block Design (RCBD). The treatment means were compared at 1 and 5 per cent level of significance (using MSTAT computer program and Excel program).

Source of Information: J. Agrofor. Environ. 1(2): 31-34, 2007; ISSN 1995-6983

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The cultivar Kantabegun was found to be the best, as judged, which was followed by Singnath under multistoried agroforestry system. The economic analysis showed that multistoried cropping of cultivar Kantabegun with goraneem+lemon was beneficial in terms of total net return from a unit area and time.

Knowledge Management: Journal