Varietal screening of tomato to tomato fruit borer, Helicoverpa armigera (Hub.) and associated tomato plant characters
2003
Khanam, U.K.S. | Hossain, M. | Ahmed, N. | Uddin, M.M. | Hossain, M.S. (Bangladesh Agricultural Univ., Mymensingh (Bangladesh). Dept. of Entomology)
The screening of thirty tomato varieties/lines to tomato fruit borer, Helicoverpa armigera (Hub.) infestation in relation to their 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-282 were found moderately resistant and susceptible, respectively. Plant height, stem diameter, total number of branches/plant, total number of leaves/plant, 2nd leaf area, total leaf chlorophyll, number of leaf hair and number of fruits/plant of V-29 line were 81.74 cm, 1.45 cm, 14,453, 19.58 sq. cm, 1.13 mg/g, 12 and 48, respectively. Again the aforementioned characters for V-282 line were 80.74 cm, 1.18 cm, 9, 396, 21.57 sq. cm, 1.24 mg/g, 17 and 30, respectively.
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