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Performance of Purified Shahi Pepe

M. Hasan Waliullah
Scientific Officer
Fruit Research Station, BARI, Binodpur, Rajshahi

M. S. Islam
Senior Scientific Officer
Fruit Research Station, BARI, Binodpur, Rajshahi

A. F. Ona
Scientific Officer
Fruit Research Station, BARI, Binodpur, Rajshahi

M. A. Uddin
Fruit Research Station, BARI, Binodpur, Rajshahi

Abstract/ Executive Summary:

The experiment was conducted at the Fruit Research Station, BARI, Binodpur, Rajshahi during January 2013 to February 2014. Seedlings of purified selfed seeds were transplanted in the main field and flowers were selfed (Sib mating) in each plant and harvesting was done and seeds were sown in next season. to regain the characteristics of original shahi pepe. Plants from previous years’ selfed seeds were evaluated for determination the regeneration per centage. Among the purified papaya germplasm the plant height, base girth, number of fruits/plant and individual fruit weight of purified Shahi pepe varied from 2.50-3.60 m, 30-45cm, 29-56 and 0.93-1.25 kg, respectively. The fruit yield/plant ranged from 24-43 kg. The fruit length, fruit breadth, cavity length, cavity breadth, pulp thickness ranged from 17.4-20 cm, 35-44 cm, 11.30-15 cm, 5.0-9.0 cm and 2.0-3.5 cm respectively. TSS ranged from 9-12 (%). The flesh colour varied from yellowish red to red. In the existing cultivated Shahi pepe, number of seed per fruit ranged from to 151-400.

Keywords: Regeneration, Shahi pepe, Sib mating

Location: Fruit Research Station, BARI, Binodpur, Rajshahi

Start Date: 00-01-2013

End Date: 00-02-2014

Program Area: Variety and Species

Non-commodity: Performance

Objectives:

Regeneration of Shahi pepe variety
To study the papay germplasm developed through sib mating
Compaired the new sib mating germplasm with original Shahi pepe

Methodology:

The experiment was conducted at the Fruit Research Station, BARI, Binodpur, Rajshahi during January 2013 to February 2014. Seeds of Shahi pepe (BARI Papaya –1) variety were sown singly in polybag on 21^st January, 2013. The growing media in the polybags contains sandy loam soil and well-decomposed cow dung in 2:1 proportion. Non replicated row planting system has followed in papaya planting. Plant to plant distance was 2.0 m. The plants were fertilized with 15 kg organic fertilizer, 500 gm urea, 500 gm TSP, 500 gm MoP, 250 gm gypsum, 25 gm boric acid and 20 gm zinc sulphate. Whole amounts of organic fertilizer, TSP, gypsum, boric acid and zinc sulphate were applied at the pit. Urea and MoP were applied @ 50 gm/plant at an interval of one month. The intercultural operations (weeding, irrigation, insecticide spray etc.) were done as and when necessary. Randomly 10 plants were selected for data collection. Data on plant height, base girth, no. of fruit/plant, individual fruit weight, yield/plant, fruit length, fruit breadth, cavity length, cavity breadth, thickness TSS, flesh colour and number of seed/fruit were taken. The information on different characters was statistically analyzed.

Source of Information: Research Report on Horticultural Crops 2013-14. 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:

Plant and fruit characteristics of papaya germplasm developed through sib mating were more or less similer to the original Shahi pepe. The plant height, fruit shape, pulp colour and TSS were close to Shahi pepe, but fruit weight as well as yield per plant found higher than original variety.

Knowledge Management: Report/Proceedings