Agricultural Research Management Information System

Home
Research Summary
Search
About Us
- ARMIS
- Brochure
Contact Us
Report
User Request
Data Input
Help
- Operation Manual
  - PDF
  - Video
- Program Area & Commodity
We have reached 37600 number of research entries at this moment.

- Logout

Research Detail

Home
Research
Detail

Selection in Segregating Population of Tomato (solanum Lycopersicum) for Growth, Yield and Virus Resistance

M. S. ISLAM
Senior Scientific Officer
Horticulture Research Centre (HRC), Bangladesh Agricultural Research Institute, (BARI), Gazipur, Bangladesh

S. AHMAD
Principal Scientific Officer
Horticulture Research Centre (HRC), Bangladesh Agricultural Research Institute, (BARI), Gazipur, Bangladesh

M. A. HOQUE
Director
Horticulture Research Centre (HRC), Bangladesh Agricultural Research Institute, (BARI), Gazipur, Bangladesh

Abstract/ Executive Summary:

Nineteen segregating lines of tomato were evaluated at the Horticulture Research Centre of BARI during winter season of 2008-2009 with a view to developing high yielding virus resistant varieties. Wide variation was observed among the lines in respect of number of fruits per plant (13.5-38.3), individual fruit weight (56.8-162.3g), fruit yield per plant (1.28-2.40 kg), and locule number of fruit (2.0-8.5). The highest number of fruits per plant was observed in the line 14-1-1-1-1, but its corresponding individual fruit weight was only 58.4g. The line 15-3-4-2-1 had the highest individual fruit weight (162.3g). The highest fruit yield was recorded from the line 15-3-4-2-1 (81.6 t/ha), which was closely followed by the line 15-1-2-2-1 (79.5 t/ha). Thirteen genotypes were found free from virus infection up to 60 days after transplanting, while the rest had very low (1.4 - 2.8%) virus incidence. Among the entries, considering yield and virus reaction, the lines, 8-1-3-4-1, 8-1-3-1-1, 8-1-3-2-2, 14-1-1-1-1, 15-3-4-2-1, 15- 1-2-2-1 and 15-1- 2-1-2 were selected for further evaluation and recommendation as varieties.

Keywords: Segregating population, Tomato, Yield and virus resistance

Location: Horticulture Research Centre of BARI, Gazipur

Start Date: 00-00-2008

End Date: 00-00-2009

Program Area: Variety and Species

Commodity: Tomato

Objectives:

To developing high yielding and TYL CV tolerant/resistant varieties under Bangladesh condition through selection from the segregating generations.

Methodology:

Nine segregating tomato lines were collected from Asian Vegetable Research and Development Centre, Taiwan in the year of 2005 with a view to developing high yielding virus free tomato varieties through individual plant selection. Nineteen lines were selected for preliminary yield trial after four generations of selection from segregating populations (Anon., 2007; Anon., 2008). The seeds of 19 lines were sown on 30 September and seedlings were transplanted in the main field on 11 November 2008. The experiment was laid out in RCB design with three replications. The unit plot size was 4.8m × 1.0m. The plants were spaced at 60 cm × 40 cm. The crop was fertilized with 10 tons of cowdung, 550kg urea, 450 kg TSP, and 250 kg MP per hectare. Half of cowdung, entire TSP, and half of MP were applied during land preparation. The remaining half of the cowdung was applied during pit preparation. The rest of MP and urea were applied in three equal installments at 15, 30, and 45 days after transplanting. Irrigation, pruning, mulching, weeding, etc. were done as and when necessary. Ten plants were selected randomly from each replication for data collection on yield and yield attributes. TSS was determined by hand refractometer. Firmness was examined by hand of the ripened fruit. Virus incidence was recorded at 30, 45, and 60 DAT considering whole plant population of each replication through rigorous field observation. The compiled data were statistically analyzed for interpretation of results. The simple correlation coefficient was worked out according to Panse and Sukhatme (1967).

Source of Information: Bangladesh J. Agril. Res. 36(3) : 507-512, September 2011, ISSN 0258-7122

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The highest number of fruits per plant was observed in the line 14-1-1-1-1, but its corresponding individual fruit weight was only 58.4g. The line 15-3-4-2-1 had the highest individual fruit weight (162.3g). The highest fruit yield was recorded from the line 15-3-4-2-1 (81.6 t/ha), which was closely followed by the line 15-1-2-2-1 (79.5 t/ha). Thirteen genotypes were found free from virus infection up to 60 days after transplanting, while the rest had very low (1.4 - 2.8%) virus incidence. Among the entries, considering yield and virus reaction, the lines, 8-1-3-4-1, 8-1-3-1-1, 8-1-3-2-2, 14-1-1-1-1, 15-3-4-2-1, 15- 1-2-2-1 and 15-1- 2-1-2 were selected for further evaluation and recommendation as varieties.

Knowledge Management: Journal