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

Performance of Heat Tolerant Tomato Hybrid Lines Under Hot, Humid Conditions

M. S. ALAM
HRC, Bangladesh Agricultural Research Institute (BARI), Gazipur

N. SULTANA
Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur

S. AHMAD
HRC, Bangladesh Agricultural Research Institute (BARI), Gazipur

M.M. HOSSAIN
Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur,

A. K. M. A. ISLAM
Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur, Bangladesh.

Abstract/ Executive Summary:

Eight hybrid tomato lines bred for heat tolerance by the Olericulture Division, BARI were studied to observe their fruit setting ability and yield performance under the hot, humid conditions at the Olericulture Farm of Bangladesh Agricultural Research Institute, Joydebpur, Gazipur during summer 2005. Percent fruit set in the lines was found to be within the range of 30 to 45 except C-7 (3×7) in which this was 52.85. The tallest plants having larger number of branches and the lowest flower drop were also observed in C-7 (3×7). Pollen viability ranged from 27.63 to 61.52 percent among the hybrids. The highest weight of individual fruits (56.02 g) and firmness (1.41 kg) was observed in C-5 (2×5). The largest fruit in respect of length and diameter was produced by C-8 (5x5). No significant variation was found among the lines in respect of days to 50% flowering and percent TSS. Significant difference wa observed for fruit number per plant ranging from 27 to 51. All of the lines produced remarkably high yields and C-7 (3x7) gave the highest yield per plant (1.73 kg) as well as per hectare (41.5 tons). The highest gross return (1867500 Tk/ha) and the maximum net return (1486748 Tk/ha) having the highest BCR (3.90) were recorded in C-7 (3×7).

Keywords: Heat tolerant, Tomato hybrid, Hot, Humid.

Location: Olericulture Farm of Bangladesh Agricultural Research Institute, Joydebpur, Gazipur

Start Date: 00-00-2005

End Date:

Program Area: Variety and Species

Non-commodity: Performance

Objectives:

The experiment was undertaken to evaluate the growth, fruit setting and yield potential of BARI developed hybrid lines in summer season.

Methodology:

Eight heat tolerant tomato hybrid lines C-1 (l×1), C-2 (1×3), C-3 (2×1), C-4 (2×3), C-5 (2×5), C-6 (3×3), C-7 (3×7), and C-8 (5×5) were grown in the summer of 2005 in a sandy clay loam soil at the Olericulture farm of the Bangladesh Agricultural Research Institute, Joydebpur, Gazipur. Seeds of each line were sown in seed bed and were allowed to grow for about 25 days before field transplanting during last week of May 2005 under transparent poly tunnels. The poly tunnels were 2.3 meter wide having two 1.0 meter wide bed with 30 cm drain in between, which served as irrigation channel. A randomized complete block design was followed with 12 plants in each treatment of 3 replications. Each plot was 1.0 m wide and 3.0 m long. Plants within each plot were spaced 60cm × 40cm apart and were pruned and staked. Soil was fertilized with 10 tons cowdiing, 450 kg urea, 250 kg TSP, and 150 kg MP per hectare. Half of the cowdung and entire quantity of TSP were applied during the final land preparation. The remaining cowdung and one third of MP were applied in pits. Top dressing was done in three equal installments at 10, 25, and 40 days after transplanting to apply the entire urea and the reaming-two-thirds of MP. Six flower clusters of each five randomly selected plants were tagged to determine number of flowers per cluster, flower drop, and fruit set. Pollen grains were collected from 10 freshly anthesised flowers of each line. Collected pollen grains were prepared and stained (Bodo, 1991) and percentage of normal pollen was calculated. The number of fnaits per plant was counted from the fruits harvested at different dates of five randomly selected plants. Ten ripe fruits were randomly harvested from each time to measure length, breadth, firmness, and weight and the seeds were removed and counted. Firmness was determined by digital firmness tester; model PENFEEL, DFT-14, AGRO TECHNOLOGY. Collected data were analyzed statistically and treatment means were compared by Duncun Multiple Range Test (DMRT).

Source of Information: Bangladesh J. Agril. Res. 35(3) : 367-373, September 2010 ISSN 0258-7122

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The largest fruit in respect of length and diameter was produced by C-8 (5x5). No significant variation was found among the lines in respect of days to 50% flowering and percent TSS. Significant difference wa observed for fruit number per plant ranging from 27 to 51. All of the lines produced remarkably high yields and C-7 (3x7) gave the highest yield per plant (1.73 kg) as well as per hectare (41.5 tons). The highest gross return (1867500 Tk/ha) and the maximum net return (1486748 Tk/ha) having the highest BCR (3.90) were recorded in C-7 (3×7).

Knowledge Management: Journal