About: Insect injury and mortality of seedlings of field penny-cress (Thlaspi arvense L.)     Goto   Sponge   NotDistinct   Permalink

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  • During 1997-1999 the injury caused by insect herbivors and mortality of plants of field penny-cress (Thlaspi arvense L.) was studied on an early fallow field at Prague-Ruzyně. The highest abundance of the weed (102 plants per m2) was recorded in 1999, the lowest (27 plants per m2) in 1998. Nearly all plants 100% in 1997 and 1998, 94% in 1999) were injured by flea beetles (Phyllotreta spp.). Injury was greatest (more than 50%) in younger seedlings. Mortality was low in 1997 (17,1%) and 1999 (15,8%), but high in 1998 (94%) because of concurrent drought. Herbivory and drought may kill a large proportion of seedlings and thus the change the composition of the weed community.
  • During 1997-1999 the injury caused by insect herbivors and mortality of plants of field penny-cress (Thlaspi arvense L.) was studied on an early fallow field at Prague-Ruzyně. The highest abundance of the weed (102 plants per m2) was recorded in 1999, the lowest (27 plants per m2) in 1998. Nearly all plants 100% in 1997 and 1998, 94% in 1999) were injured by flea beetles (Phyllotreta spp.). Injury was greatest (more than 50%) in younger seedlings. Mortality was low in 1997 (17,1%) and 1999 (15,8%), but high in 1998 (94%) because of concurrent drought. Herbivory and drought may kill a large proportion of seedlings and thus the change the composition of the weed community. (en)
  • V letech 1997-1999 bylo v jarním období na raném úhoru sledováno vzcházení, požer fytofágním hmyzem a mortalita vzcházejících rostlin penízku rolního (Thlaspi arvense L.). Nejvyšší průměrné hodnoty abundance (102 ks.m-2) byly zaznamenány v roce 1999, nejnižší hodnoty (27 ks.m-2) byly zjištěny v roce 1998. Ve všech sledovaných letech byla požerem dřepčíky (Phyllotreta spp.) s různou intenzitou poškozována téměř celá populace vzešlých penízků (100% v letech 1997 a 1998, 94% v roce 1999). Vzcházející rostliny penízku byly atakovány nejvíce (více než 50%) v nejranějších fázích vývoje. Mortalita penízku v letech 1997 a 1999 představovala 17,1 a 15,8% resp., zatímco v roce 1998, při značném deficitu srážek v časném jarním období, dosahovala až 94%. (cs)
Title
  • Insect injury and mortality of seedlings of field penny-cress (Thlaspi arvense L.)
  • Insect injury and mortality of seedlings of field penny-cress (Thlaspi arvense L.) (en)
  • Poškození fytofágním hmyzem a mortalita vzcházejících rostlin penízku rolního (Thlaspi arvense L.) (cs)
skos:prefLabel
  • Insect injury and mortality of seedlings of field penny-cress (Thlaspi arvense L.)
  • Insect injury and mortality of seedlings of field penny-cress (Thlaspi arvense L.) (en)
  • Poškození fytofágním hmyzem a mortalita vzcházejících rostlin penízku rolního (Thlaspi arvense L.) (cs)
skos:notation
  • RIV/00027006:_____/05:1166!RIV08-MZE-00027006
http://linked.open.../vavai/riv/strany
  • 21;26
http://linked.open...avai/riv/aktivita
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  • P(QD1350)
http://linked.open...iv/cisloPeriodika
  • 1
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  • 525102
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  • RIV/00027006:_____/05:1166
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  • field penny-cress. Thlaspi arvense L.. phytophagous insect; flea beetle; Phyllotreta spp.; herbivory; mortality; fallow; secondary succession (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • CZ - Česká republika
http://linked.open...ontrolniKodProRIV
  • [F2A7FEF23AE0]
http://linked.open...i/riv/nazevZdroje
  • Plant Protection Science
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http://linked.open...v/svazekPeriodika
  • 41
http://linked.open...iv/tvurceVysledku
  • Štolcová, Jindra
issn
  • 1212-2580
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