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Inbred Development in Cucumber. Season: 2017-2018

Bahauddin Ahmed
Horticulture Research Centre, BARI, Joydebpur, Garizpur-1701, Bangladesh

M.A.T. Masud
Horticulture Research Centre, BARI, Joydebpur, Garizpur-1701, Bangladesh

M.S. Alam
Horticulture Research Centre, BARI, Joydebpur, Garizpur-1701, Bangladesh

Abstract/ Executive Summary:

The trial was conducted at the experimental field of Vegetable Division, HRC, BARI, Joydebpur during winter season of 2017. Ten S₀ and one S₁ progenies of cucumber lines were advanced to S₁ and S₂ generations respectively to develop variable cucumber inbred lines for using the hybrid development program. The variations which found in the lines for days to 1^st male flower 43.60 – 48.90 days, days to 1^st female flower 46.10 – 51.75 days, node order of 1^st male flower 3.25 – 6.20, node order of 1^st female flower 4.81- 8.12, fruit length 13 – 17 cm, fruit breadth 3.43 – 4.47 cm, individual fruit weight 206 – 280 gm, fruits/plant 6.65 – 12.5 and yield/plant 1.37 – 3.20 kg. Best individuals from each line were selected and selfed. Selected selfed plants were harvested individually. Seeds of selfed fruit were extracted and dried properly. Extracted seeds of the lines were preserved for advancing generation for next year.

Keywords: Vegetables, Cucumber, Hybrid Cucumber, Selfed plant

Location: Horticulture Research Centre, BARI, Joydebpur, Garizpur-1701, Bangladesh

Start Date: 00-00-2017

End Date: 00-00-2018

Program Area: Crop-Soil-Water Management

Commodity: Cucumber

Objectives:

To develop high yielding year round hybrid variety of Cucumber.

Methodology:

The study consisted of eleven cucumber lines of S₀ to S₂ generation of indigenous origin. Of these, the maximum lines were S₀ and S₁progenies. The trial was conducted at the experimental field of vegetable division, HRC, BARI Gazipur. Seeds of each line were sown in poly beg on 30 October, 2017. Fifteen days old seedlings were transplanted in the main filed on 14 November, 2017. The unit plot size was 5 x 2 m accommodating ten plants maintaining 1 x 1m plant spacing within the bed. All the lines were replicated twice. The land was fertilized with cowdung, N, P, K, S, Zn, Mg and B @ 10000, 69, 35, 75, 5.5, 4.3, and 3.25 kg/ha respectively. Entire cowdung, P, S, Zn, Mg, B and 1/3^rd of K were applied during pit preparation as basal dose at least 8-10 days before transplanting. The rest of K will be applied in two equal installments at 15 and 30 days after transplanting. N was applied in four equal installments at 7, 15, 30 and 45 days after transplanting. A sex pheromone trap was used for controlling fruit fly. Standard agronomic practices were followed as and when necessary. The selfing and selection process was followed on the basis of crop improvement procedure. Selected plants were selfed. Selfing was done early in the morning at different days. Seeds of selfed fruits were stored for advancing the next generation. Measured characters were days to 1^st male flower open, days to 1^st female flower open, node order of 1^st male flower open, node order of 1^st female flower open, fruit length, fruit breadth, individual fruit weight, number of fruits per plant and yield per plant. Analysis of variance (ANOVA) and mean separation of genotypes were done using LSD test by Statistix 10 statistical software.

Source of Information: Annual Research Report 2017-2018, Horticulture Research Centre, BARI, Joydebpur, Garizpur-1701, Bangladesh

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Wide variation was found among the lines for node order of 1^st male flower, node order of 1^st female flower, fruit length, fruit breadth, individual fruit weight, fruits per plant and yield per plant. The best individuals from every line were selected and selfed. Seeds of S₁ progenies of cucumber lines were stored for advancing the next generation.

Knowledge Management: Report/Proceedings