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Collection and Evaluation of Local Sapota Germplasm

M. Ali
SO
Regional Agricultural Research Station, Akbarpur, Moulvibazar

M. A. Ullah
PSO
HRC, BARI, Gazipur 1701

M. S. Rahman
SSO
Regional Agricultural Research Station, Akbarpur, Moulvibazar

Abstract/ Executive Summary:

Eight local promising sapota lines viz AS-04, AS-06, AS-15, AS-33, AS-37, AS-40, AS-43 and AS-44 were evaluated at the Regional Agricultural Research Station, Akbarpur, Moulvibazar during the season 2008-2009. The plant and fruit characteristics of different sapota germplasm are presented in table 1. The maximum tree volume was obtained from line AS-37 (377.79 m³) followed by AS-04 (300.15m³) and the lowest was in AS-15 (84.28 m³). The number of fruits per plant was maximum in AS-37 (245) followed by AS-33 (202) and the lowest was obtained from AS-06 (121). The weight of fruits per plant was found maximum in AS-37 (15.12 kg) followed by AS-33 (12.21 kg) and AS-43 (12.04 kg) and the minimum yield was from the plant AS-06 (5.18 kg). Average fruit weight was the maximum in AS-43 (67.12 g) followed by AS-40 (64.32 g). The edible portion was found maximum in AS-37 (82.60%) followed by AS-15 (81.85%). The TSS was found maximum in AS-15 (31.25%) followed by AS-37 (31.05 %) and AS-44 (31.0 %).

Keywords: Collection, Evaluation, Sapota germplasm

Location: Akbarpur, Moulvibazar

Start Date: 01-04-2008

End Date: 31-05-2009

Program Area: Conservation and Biodiversity

Commodity: Sapota

Objectives:

Sapota (Achras sapota L.) is very sweet, tasty and delicious tropical fruit. But it is not well acquainted with the people of our country. HRC of BARI has developed two varieties of sapota. An attempt was undertaken to collect sapota germplasm from various sources for selection as a suitable variety for greater Sylhet region.

Methodology:

Eight local promising sapota lines viz AS-04, AS-06, AS-15, AS-33, AS-37, AS-40, AS-43 and AS-44 were evaluated at the Regional Agricultural Research Station, Akbarpur, Moulvibazar during the season 2008-2009. The plants were planted in a single row system having the spacing 4m × 4m. Last year 33 accessions of sapota were evaluated and eight superior lines were selected for further trial. This year the eight lines were evaluated. The manures and fertilizers were applied at the rate of cowdung 25 kg, Urea 500g, TSP 400g and MP 450g per plant. All the nutrients were applied in two equal installments. Irrigation, weeding and other intercultural operations were done as and when necessary. Data on Plant height (m), base girth (m), tree volume (m³), plant spreading (m), no. of main branches/plant, number of fruits/plant, yield /plant, (kg), fruit colour, fruit shape, average fruit weight (g), fruit length (cm), fruit diameter (cm), seeds/fruit, edible portion (%), TSS (%), flesh texture and taste of fruits were recorded from each plant and analyzed statistically.

Source of Information: Research Report on Horticultural Crops 2008-09. Horticulture Research Centre, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur-1701.

Article Link (Online Journal):

Funding Source:

1. Government

Budget: 20,000/-

Total Budget (Tk.) : 20,000/-

Achievement/Findings:

Considering yield and fruit characters viz. no. of fruits per plant, wt. of fruits per plant, average fruit weight, edible portion and TSS, the lines AS-44, AS-37, AS-40, AS-15 and AS-43 might be selecting for releasing as varieties.

Knowledge Management: Report/Proceedings