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Varietal Screening of Tomato to Fruit Borer, Helicoerpa Armiger (hub.) and Associated Tomato Plant Characters

UKS Khanam
Post Graduate Student
Dept. of Entomology BAU, Mymensingh,Bangladesh

N Ahmed
PSO
Entomology Division, BRRI

MS Hossain
PSO
Training Division, BRRI

Abstract/ Executive Summary:

The screening of thirty varieties/lines to tomato fruit borer, Helicoverpa armigera (Hub.) infestation in relation morphological characters was conducted in different laboratories of BAU and Bangladesh Institute of Nuclear Agriculture (BINA), Mymensingh during rabi season, November 1999 to March 2000. The tomato fruit borer infestation varied significantly among the varieties/lines and also with the age of the tomato plants. Among the varieties/lines, V-29 and V-258 were found moderately resistant and susceptible respectively. Plant height, stem diameter, total number of branches/plant, total number of leaves/plant, 2^nd leaf area, total leaf chorolophyll, number of leaf hair and number of fruits/plant of V-29 line were 81.74 cm, 4, 8 14,453, 19.58 sq.cm, 1.13mg/g, 12 and respectively. Again the aforementioned characters for V-282 line were 80.74 cm, 1.18 cm, 9,396, 21.57sq.cm 1.24 mg/g, 17 and 30, respectively.

Keywords: Tomato, Resistant, Morphological characters

Location: BAU, Mymensingh

Start Date: 00-11-1999

End Date: 00-05-2000

Program Area: Variety and Species

Commodity: Insects

Objectives:

To test damage level caused by tomato fruit borer of resistant and susceptible tomato varieties/line by field screening.
To identify the plant morphological characteristics influencing the infestation rate of tomato fruit borer
To study the relation of leaf colour/pigment with infestation rate of tomato fruit borer.

Methodology:

The research work was carried out at Genetics and plant breeding farm (GPB farm) and at different Laboratories of Bangladesh Agricultural University (BAU) and Bangladesh Institute of Nuclear Agriculture, Mymensingh during the period November 1999 to March 2000. The experimental field belongs to the old Brahmaputra Alluvium soil Tract characterized by sandy loam soil with fine texture having a pH value of 6.5 (Uddin, 1975 Anonymous, 1979). For the experiment, thirty tomato varieties/lines were used. Most of them were obtained from Genetics and plant breeding Department, BAU, Mymensingh and rest were collected from Bangladesh Agriculture Research Institute (BARI), Gazipur and Asian Vegetable Research and development Centre (AVRDC), Taiwan.

Source of Information: Pakistan Journal of Biological Science, 6(3):255-263, 2003

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The tomato fruit borer infestation varied significantly among the varieties/ lines and also with the age of the tomato plants. Among the varieties/lines, V-29 and V-258 were found moderately resistant and susceptible respectively. Plant height, stem diameter, total number of branches/plant, total number of leaves/plant, 2^nd leaf area, total leaf chorolophyll, number of leaf hair and number of fruits/plant of V-29 line were 81.74 cm, 4, 8 14,453, 19.58 sq.cm, 1.13mg/g, 12 and respectively. Again the aforementioned characters for V-282 line were 80.74 cm, 1.18 cm, 9,396, 21.57sq.cm 1.24 mg/g, 17 and 30, respectively.

Knowledge Management: Journal