Abstract
One hundred and five okra cultivars were evaluated in the field for resistance to the leafhopper Amrasca biguttula biguttula (Ishida) during the 1989–1990 season. On the basis of nymphal abundance and leafhopper injury index two resistant (Siswal Local and IC 7194) and nine moderately resistant [IC 6653, IC 8899, IC 13617, Sel. 1, HB 94, IC 6316, 6 Dhari, Sel. 2–2 and Line 6(1)] genotypes were identified. Both of the resistant, two moderately resistant (Line 6(1) and IC 13617) and two highly susceptible (Pusa Sawani and Pusa Reshmi) genotypes were retested in 1990–1991. Resistant genotypes had significanlty (P < 0.05) fewer nymphs (18.5 to 22.0 nymphs/leaf) and lower values of injury index (2.2) compared with the other varieties. Nymphal duration was also longer (9.3 to 9.8 days) and nymphal survival lower (41.7 to 47.5%) in resistant cultivars. Higher trichome density, longer trichome length and higher concentration of sugars, silica, potassium, tannins and phenols in the leaves of resistant cultivars were associated with resistance to leafhopper.
Résumé
Cent cinq cultivars de gombo ont été évalués en champs pour la résistance à la cicadelle Amrasca bigutulla bigutulla (Ishida), au cours de la saison 1989–1990. Sur base de l’abondance des nymphes et de l’index des dégâts infligés par les cicadelles, deux génotypes résistants (Siswal Local et LC 7194) et neuf génotypes moyennement résistants [(IC 6653, IC 8899, IC 13617, Sel. 1, HB 94, IC 6316, 6 Dhari, Sel. 2–2 et Line 6(1)] ont été identifiés. Les deux génotypes résistants et deux moyennement résistants (Line 6(1) et IC 13617) ainsi que deux autres hautement sensibles (Pusa Sawani et Pusa Reshmi) ont été de nouveau testés en 1990–1991. Comparés aux autres variétés, les genotypes résistants avaient significativement (P < 0.05) moins de nymphes (18, 5–22 par feuille) et leur index de dégâts était bas. Au sein des cultivars résistants, la durée de développement nymphal était aussi longue (9, 3–9, 8 jours) et la survie basse (41, 7–47, 5%). Une haute densité de trichome, un trichome trés long ainsi qu’une haute teneur en sucres, en silice, en potasse, en tannins et en phénols dans les feuilles des cultivars résistants ont étaient associés à la résistance contre les cicadelles.
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References
Agarwal R. A., Banerjee S. K. and Katiyar K. N. (1978) Resistance to insects in cotton I. to Amrasca devastans (Distant). Cot. Fibr. Trop. 33, 409–414.
Ali M. L., Treen A. J., Roy N. C. and Hossain M. A. (1993) Management practice for cotton jassid, Amrasca devastans (Dist.) in Bangladesh. Int. J. Pest Manage. 39, 67–71.
Ambekar J.S. and Kalbhor S. E. (1981) Note on the plant characters associated with resistance to jassid, Amrasca biguttula biguttula (Ishida) in different varieties of cotton. Indian J. Agric. Sci 51, 816–817.
AOAC (1985) Official Methods of Analysis of the association of official agricultural chemists, Association of Analytical Chemists, Washington, DC.
Atwal A. S. (1976) Agricultural Pests of India and South-East Asia. Kalyani Publisher, Ludhiana, India. 502 pp.
Baloch A., Soomro B. A. and Mahlah C. H. (1982) Evaluation of some cotton varieties with known genetic markers for their resistance-tolerance against sucking and boll-worm complex. Turkiya Bitki Koruma Dergist 6, 3–14.
Bindra O. S. and Mahal M. S. (1979) Investigations on varietal resistance in okra (Abelmoschus esculentus (L.) Moench) to the cotton jassid (Amrasca biguttula biguttula (Ishida). India J. Hort. 36, 212–219.
Burns R. E. (1971) Method of estimation of tannin in grain sorghum. Agron. J. 63, 511–512.
CCS HAU (1990) The Package of Practices for Kharif Crops. CCS Haryana Agricultural University, Hisar, India. 181 pp.
Hooda V. S., Dhankhar B. S, and Singh R. (1992) Evaluation of wild taxa of okra against the leafhopper Amrasca biguttula biguttula (Ishida). Test Agrochem. Cultivars (Ann. appl. Biol. 120 supplement) 13, 108–109.
Joshi A. B., Gadwal V. R. and Hardas M. W. (1974) Okra, pp. 101–107. In Evolutionary Studies in World Crops (Edited by J. B. Hutchinson). Cambridge University Press, London.
Mabbett T. H., Nachapong M., Monglakul K. and Mekdaeng J. (1984) Distribution on cotton of Amrasca devastans and Ayyaria chaetophora in relation to pest scouting techniques for Thailand. Trop. Pest Manage. 30, 133–141.
Mahal M. S. (1978) Inheritance in okra (Abelmoschus esculentus (L.) Moench) to the cotton jassid Amrasca biguttula biguttula (Ishida). PhD Thesis, Punjab Agricultural University, Ludhiana, India.
Mahmood T., Khokhar K. M., Banaras M. and Ashraf M. (1990) Effect of environmental factors on the density of leafhopper, Amrasca devastans (Distant) on okra. Trop. Pest Manage. 36, 279–281.
Mote U. N. (1980) Varietal resistance of okra to jassid. I. Screening under field conditions. Bull. Entomol. 21, 126–131.
Richards L. A. (1958) Agricultural Hand Book, No. 66: 132 pp. (United States Department of Agriculture), Washington, DC.
Sandhu G. S., Sharma B. R., Singh B. and Bhalla J. S. (1974) Sources of resistance to jassid and whitefly in okra germplasm. Crop. Improv. 1, 77–81.
Singh R. (1987) Bases of resistance in cotton to Amrasca biguttula biguttula (Ishida). J. Cot. Res. Develop. 1, 131–140.
Singh R. (1988) Bases of resistance in okra to Amrasca biguttula biguttula (Ishida). Indian J. Agric. Sci. 58, 15–19.
Singh R. and Agarwal R. A. (1988) Role of chemical components of resistant and susceptible genotypes of cotton and okra in ovipositional preference of cotton leafhopper. Proc. Indian Acad. Sci. (Anim. Sci.) 97, 545–550.
Singh R. and Taneja A. D. (1989) Influence of phytochemicals and leaf pubescence of some malvaceous plants on development, survival and oviposition of cotton leafhopper. Z. Angew. Zool. 76, 357–368.
Singh T. H., Singh G., Sharma K. D. and Gupta S. P. (1972) Resistance of cotton (Gossypium hirsutum L.) to cotton jassid Amrasca devastans (Distant) (Homoptera: Jassidae). Indian J. Agric. Sci. 42, 421–425.
Swain T. and Hillis W. E. (1959) The phenolic constituents of Prunus domestica L. The quantitative analysis of phenolic constituents. J. tSci. Food Agric. 10, 63–69.
Teli V. S. and Dalaya V. P. (1981) Varietal resistance in okra to Amrasca biguttula biguttula (Ishida). Indian J. Agric. Sci. 51, 729–731.
Uthamasamy S. (1985) Influence of leaf hairiness on the resistance of bhindi or lady’s finger (Abelmoschus esculentus (L.) Moench) to the leafhopper (Amrasca devastans). Trop. Pest Manage. 31, 294–295.
Yemm E. W. and Willis A. J. (1954) The estimation of carbohydrates in plant extract by anthrone. Biochemical J. 57, 508–514.
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Hooda, V.S., Dhankhar, B.S. & Singh, R. Evaluation of Okra Cultivars for Field Resistance to the Leafhopper Amrasca Biguttula Bigutula (Ishida). Int J Trop Insect Sci 17, 323–327 (1997). https://doi.org/10.1017/S1742758400019135
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DOI: https://doi.org/10.1017/S1742758400019135