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Study on the Physico-chemical Characteristics of Longan (euphoria Longana) Germplasm

M. M. Khatun
Scientific Officer
Horticulture Research Centre (HRC), Bangladesh Agricultural Research Institute (BARI), Gazipur-1701, Bangladesh.

M. R. Karim
Scientific Officer
Horticulture Research Centre (HRC), Bangladesh Agricultural Research Institute (BARI), Gazipur-1701, Bangladesh.

M. M. Molla
Scientific Officer
Horticulture Research Centre (HRC), Bangladesh Agricultural Research Institute (BARI), Gazipur-1701, Bangladesh.

M. M. Khatun
Scientific Officer
Horticulture Research Centre (HRC), Bangladesh Agricultural Research Institute (BARI), Gazipur-1701, Bangladesh.

M. J. Rahman
Senior Scientific Officer
Horticulture Research Centre (HRC), Bangladesh Agricultural Research Institute (BARI), Gazipur-1701, Bangladesh.

Abstract/ Executive Summary:

A study on the physico-chemical characteristics of 15 promising longan germplasm was carried out at the fruit Research Farm of Horticulture Research Centre (HRC) as well as laboratory of Post harvest Technology Section of HRC and the Central Laboratory of Bangladesh Agricultural Research Institute, Joydebpur, Gazipur. The experiment was conducted during the fruiting season of 2010. Fifteen promising lines of longan germplasm including BARI Anshphal-1 , BARI Anshphal-2, EL-Joy 003 to EL-Joy 015 of 12 years old were included in this experiment. A wide range of variations were observed among the germplasm in respect of different characteristics under the present study. Percent edible portion was the highest in EL-Joy 010 (76.57 %), EL-Joy 006 (74.55%), EL-Joy 003 (74.20 %) and the lowest in EL-Joy 012 (65.10 %). Total reducing and non-reducing sugar was the maximum in EL-Joy 009 (6.94 %) and BARI Anshphal-2 (16.50 %), respectively. BARI Anshphal-1 contained the highest amount of ascorbic acid (13.00 mg/100 g) and EL-Joy 009 possessed the maximum total soluble solids (22.30 %). The study revealed that BARI Anshphal-1, BARI Anshphal-2, EL-Joy 003, EL-Joy 006, EL-Joy 009, EL-Joy 010 were the best in respect of physical and chemical characteristics of fruits.

Keywords: Longan, Physico-chemical characteristics, Vitamin-C

Location: Horticulture Research Centre, BARI, Joydebpur, Gazipur

Start Date: 00-00-2010

End Date:

Program Area: Quality and Nutrition

Commodity: Longan

Objectives:

To select superior genotypes in respect of fruit quality.

Methodology:

A study on the physico-chemical characteristics of 15 promising longan germplasm was carried out at the fruit Research Farm of Horticulture Research Centre (HRC) as well as laboratory of Post Harvest Technology Section of HRC, Central Laboratory of Bangladesh Agricultural Research Institute, Joydebpur, Gazipur. The experiment was conducted during the fruiting season of 2010. Fifteen promising lines of longan germplasm including BARI Anshphal-1, BARI Anshphal-2, EL-Joy 003 to EL-Joy 015 of 12 years old were included in this experiment. The seedling plants were planted in 1997 at 4m x 4m spacing. Single plant of each germplasm was considered as one replication. For this study, 30 mature fruits were collected randomly from each plant. After collection, the fruits were kept on the laboratory desk at ambient condition for recording physical and chemical characteristics. Twenty full ripe fruits per plant were used for physical characteristics and rest ten fruits were taken to the Bio-chemistry Laboratory for chemical analysis. Organoleptic tests were done by a pannel of three members. Data on different parameters were recorded and analyzed statistically.

Source of Information: BANGLADESH JOURNAL OF AGRICULTURAL RESEARCH, Vol-37 (3), pp. 441-447, September 2012, ISSN 0258-7122.

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The findings of the present study will help selecting longan varieties/lines for fresh consumption, processing and variety development programmes. Considering the overall physical and chemical characteristics of fruits of all the studied germplasm, BARI Anshphal-1 , BARI Anshphal-2, EL- Joy 003, EL- Joy 006, EL- Joy 009, EL- Joy 010 were found superior to other germplasm in respect of fruit weight, edible portion, TSS, total reducing, non-reducing sugar, and ascorbic acid.

Knowledge Management: Journal