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Which plant compounds influence the natural resistance of cabbage against onion thrips ( Thrips tabaci Lindeman)?

Trdan, S. and Valič, N. and Andjus, L. and Vovk, I. and Martelanc, M. and Simonovska, B. and Jerman, J. and Vidrih, R. and Vidrih, M. and Žnidarčič, D. (2008) Which plant compounds influence the natural resistance of cabbage against onion thrips ( Thrips tabaci Lindeman)? Acta Phytopathologica et Entomologica Hungarica, 43 (2). pp. 385-395. ISSN 0238-1249

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Abstract

In a field experiment on the natural resistance of cabbage ( Brassica oleracea var. capitata ) against onion thrips (Thrips tabaci) , 20 cabbage genotypes were included: 9 early, 5 mid-early, 6 mid-late (regarding the longevity of the growing period), 3 red, 17 white (regarding colour), 14 hybrids and 6 varieties (regarding genetic origin). For comparisons between genotypes, we determined significant differences in the mean index of damage on the exterior leaves of cabbage heads (1.12–2.83), the net weight of heads (281.40,151169.6 g), and yield loss (5.8–47.4%). The concentration of several compounds from cabbage leaves (epicuticular wax, α-amyrin, β-amyrin, lupeol, sucrose, glucose, fructose, vitamin C, palmitic acid, stearic acid, and arachidic acid) are measured. For all groups of cabbage genotypes the only confirmed negative correlation was between the extent of damage caused by the sucking of onion thrips and epicuticular wax content on the cabbage leaves (in groups where we artificially placed genotypes with similar characteristics). After this preliminary experiment, the research must be extended in order to determine the effect of the remaining analysed compounds in cabbage leaves for resistance (sensitivity) of cabbage to onion thrips attack.

Item Type: Article
Subjects: Q Science / természettudomány > QH Natural history / természetrajz > QH540 Ecology / ökológia
Q Science / természettudomány > QK Botany / növénytan > QK10 Plant physiology / növényélettan
Q Science / természettudomány > QL Zoology / állattan > QL01 Systematic zoology / állatrendszertan
Depositing User: xBarbara xBodnár
Date Deposited: 02 Nov 2017 14:50
Last Modified: 02 Nov 2017 14:50
URI: http://real.mtak.hu/id/eprint/66469

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