Effects of faba bean (Vicia faba) varieties on the development of Bruchus rufimanus

Marek Seidenglanz and Igor Huňady
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Marek Seidenglanz: Department of Plant Protection, AGRITEC Research, Breeding and Services, Ltd., Šumperk, Czech Republic
Igor Huňady: Department of Grain Legumes and Technical Crops, Agritec Plant Research Ltd., Šumperk, Czech Republic

Czech Journal of Genetics and Plant Breeding, 2016, vol. 52, issue 1, 22-29

Abstract: The development of Bruchus rufimanus was assessed in randomised field trials from 2005 to 2007 with eight faba bean genotypes (SU 5/13, SU-BT, Mistral, Merkur, Stabil Merlin, Melodie, Divine). Significant differences, reproducible between the years, were found between the faba bean lines. The varieties most attractive to B. rufimanus ovipositing females were SU-BT and Divine. Merkur showed a certain level of non-preference. The highest mortality rates of eggs and first instar larvae in pod valve tissues were recorded in Merkur (34-45%) and Divine (51-55%). The highest mortality rates of larvae and pupae during their development in seeds (effect of seed coat and cotyledon tissues) were recorded in Merkur (87-90%) and Melodie (87-99%). Parasitation by Triaspis thoracicus contributed to this mortality. The highest levels of B. rufimanus parasitation were found in SU-BT (32-35%), the lowest in Melodie (3-9%). The total reduction in Bruchus rufimanus individuals during their development was relatively high in all varieties, ranging from 72% to 99%.

Keywords: antibiosis; Bruchus rufimanus mortality in seeds; nonpreference; plant resistance to bruchids (search for similar items in EconPapers)
Date: 2016
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlcjg:v:52:y:2016:i:1:id:122-2015-cjgpb

DOI: 10.17221/122/2015-CJGPB

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