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Effect of Tomato Yellow Leaf Curl Virus Infection on Yield and Yield Components of Tomato (lycopersicon Esculentum. Mill)

M. M. Haque
BPJP-SHSP. Department of Agriculture Extension, Khamarbari, Dhaka, Bangladesh

K. H. Alam
Orange & Pineapple Project, Department of Agriculture Extension. Dhaka. Bangladesh

A. Parvin
Ministry of Home Affairs. Dhaka, Bangladesh

M. R. Islam
BPJP-SHSP. Department of Agriculture Extension, Khamarbari, Dhaka, Bangladesh

A. M. Akanda
Department of Plant Pathology, BSMRAU. Gazipur-1706, Bangladesh

Abstract/ Executive Summary:

An experiment was conducted at the research farm of Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur during November 2000 to March 2001 using four tomato (Lycopersicon esculentum. Mill) varieties-namely Manik, BARI Tomato-5, BARI Tomato-6 and BARI Tomato-7. The performance of the tomato varieties both respect to prevalence of Tomato yellow leaf curl virus (TYLCV) and its impact on yield was evaluated. The tomato seedlings were grown under both net house condition and open nursery bed that were sprayed with Perfecthion 40 EC at the rate of 3 ml/L up to 20 days before first harvest. The yield contributing characters were significantly (P≤0.05) better in the plants grown from net house seedlings and insecticide sprayed seedling compared to open nursery non-sprayed seedlings with a few exceptions. The reduction percentage of the yield contributing characters varied depending on tomato varieties, condition of raising seedling and spraying of insecticide. The fruit yields of Manik, BARI Tomato-5, BARI Tomato-6, and BARI Tomato-7 were 16, 13, 12 and 14% higher, respectively in net house grown seedlings with insecticide spray in comparison to outside seedlings without spray. Under all the conditions, Manik, BARI Tomato-5, and BARI Tomato-6 performed better than BARI Tomato-7. Among the different yield contributing characters, number of flower/bunch and number of fruit/bunch had more pronounced and significant effect on yield of tomato compared to other characters.

Keywords: Tomato, Net house, Variety, Yield of tamato, Yield components

Location: Bangabandhu Sheikh Mujibur Rahman Agricultural University, Salna, Gazipur

Start Date: 00-11-2000

End Date: 00-03-2001

Program Area: Pest Management

Commodity: Tomato, Virus

Objectives:

To study the effects of tomato yellow leaf curl virus (TYLCV) and different seedling raising conditions on yield and yield components of different tomato varieties.

Methodology:

The experiment was conducted at Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Salna, Gazipur during 2000 and 2001. Four tomato varieties namely Manik, BARI Tomato-5 (BARI-T5), BARI Tomato-6 (BARI-T6) and BARI Tomato-7 (BARI-T7) were grown out side and inside net house. The plants were then subjected to spray and non- spray. The experiment was laid out following 4 x 2 x 2 factorial in randomize complete block design (RCBD) with three replications. The seeds of tomato varieties were collected from Bangladesh Agricultural Research Institute, Joydebpur, Gazipur. The soil of experimental field belongs to Salna series under the Agroecological zone 28 (Madhupur Tract) representing the shallow red brown terraces. The seedlings of tomato were raised in an insect proof nethouse and an open nursery bed of BSMRAU. Perfecthion 40EC Di-methioate (0.3%) was used to control the whitefly in the tomato field. Tomato yellow leaf curl virus (TYLCV) was identified on the basis of field symptoms as described. Whitefly was caught placing three yellow traps in the field as suggested. To find out the impact of TYLCV infection on different yield contributing characters of the net house and outside grown seedlings of tomato, data on number of bunch/plant, number of flower/bunch, number of fruit/bunch and fruit yield (kg/plant) were recorded. The data were analyzed statistically using the analysis of variance with MSTAT-C software and the mean values were compared according to DMRT at 5% level of significance.

Source of Information: The Agriculturists, Vol: 4, (No-1&2), pp: 27-34, Dec 2006

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Variation in the prevalence of TYLCV was dependent on the tomato varieties, growing condition of seedlings and Perfecthion (40EC) spray. The plants grown from net house raised seedlings and sprayed with Perfecthion (40EC) performed better in respect to percent prevalence of TYLCV and yield contributing characters. The plants belonging to BARI T5, Manik and BARI T6 gave higher yield compared to BARI T7 under net house-raised seedlings and insecticide sprayed condition.

Knowledge Management: Journal