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Performance of Exotic Longan Germplasm at BARI, Gazipur

M. Masuda Khatun
Senior Scientific Officer
Pomology Division, Horticulture Research Centre, BARI, Gazipur

M. G. Saha
Cheif Scientific Officer
Pomology Division, Horticulture Research Centre, BARI, Gazipur

Abstract/ Executive Summary:

Performance of 18 exotic longan germplasm was studied at HRC, BARI, Gazipur during 2012-13. Wide range of variability was noted among the genotypes in respect of different physical and chemical characteristics of fruits. The heaviest fruit was recorded in EL Joy-031 (10.02 g) followed by EL Joy-040 (9.61g). The lowest fruit weight was obtained from EL Joy-042 (5.35 g). The length and diameter of fruits varied from 2.01 to 2.34 cm and 2.12 to 2.65 cm, respectively. The weight of aril was the highest in EL Joy-031 (6.52 g) while the lowest aril in EL Joy-042 (3.04 g). The highest rind weight was also recorded in EL Joy-031 (2.00g), as against, the lowest in EL Joy-025 (1.00 g). The biggest seed was obtained from EL Joy-028 (1.60 g) and the smallest from EL Joy-042 (0.80 g). EL Joy-037 had the highest edible portion (71.48%) and EL Joy-025 contained the lowest (56.72%). TSS was recorded maximum in EL Joy-042 (19.60%) closely followed by EL Joy-037 (19.40%) and EL Joy-028 (19.00%), whereas minimum was noted in EL Joy-031 (15.00%). Fruit shape varied from round to heart shaped. Texture of the aril of the genotypes was less juicy to very juicy.

Keywords: Longan, Adaptability, Evaluation, Fruit characteristics

Location: Horticulture Research Centre, BARI, Gazipur during 2011-2012

Start Date: 01-01-2011

End Date: 31-08-2012

Program Area: Variety and Species

Commodity: Longan

Objectives:

To study the performance of exotic longan genotypes at Gazipur

To select superior longan germplam with respect to yield and quality of fruits.

To evaluate, characterize and document the exotic longan germplasm for future utilization

To develop more longan varieties having higher yield and good quality

Methodology:

The experiment was conducted at the Fruit Research Farm of Horticulture Research Centre, BARI, Joydebpur, Gazipur during 2011-2012. Twenty two promising exotic lines of longan (EL Joy-024 to EL Joy-045) were included in the experiment. Seedling plants were planted in 2006 at a spacing of 4 m X 4 m. One plant constituted a unit plot. The plants were fertilized with the recommended dose of manure and fertilizer. Intercultural operations such as weeding, ploughing, spading, irrigation and plant protection measures were done as and when required. Individual plant was covered with nylon net to protect the fruit from bird damage.

Source of Information: Research Report on Horticultural Crops 2012-13. Horticulture Research Centre, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur-1701.

Article Link (Online Journal):

Funding Source:

1. Government

Budget: 25000/-

Total Budget (Tk.) : 25000/-

Achievement/Findings:

The present study will help selecting the longan varieties for fresh consumption as well as variety development programmes. Considering the quantitative and qualitative characteristics and yield of fruits, pest and disease incidence of all the studied germplasm, EL Joy-025, EL Joy-037 and EL Joy-040 has been selected superior to other germplasm. It was the second year findings. The experiment will be continued for further investigation.

Knowledge Management: Report/Proceedings