About: Termination of innate seed dormancy in Rumex obtusifolius under field conditions.     Goto   Sponge   NotDistinct   Permalink

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  • Achenes of Rumex obtusifolius persist on dry shoots from maturation through the next vegetative season and are continuously dispersed. The rate of dormancy termination in seeds dispersed from mother plants at different times and buried in the soil was i nvestigated. The seeds were buried in the field at 20 cm depth on nine dates between April 15 and September 20. Samples of seeds were exhumed in 10-d intervals and the proportion of germinating seeds was determined at 25 C in light. Regardles of the tim e of burial, dormancy was terminated quickly. Withi 30 d after burial, the percentageof germination increased from the original 8-33 % to 64-85 %. The rate of increase of germination within 20 d after burial (2.1-3.1 % per day) did not significantly dif fer between dates, although average soil temperatures were different. Achenes buried in the autumn pass through annual dormancy cycles, but achenes from dry shoots become germinable all year round after a shor period of burial.
  • Achenes of Rumex obtusifolius persist on dry shoots from maturation through the next vegetative season and are continuously dispersed. The rate of dormancy termination in seeds dispersed from mother plants at different times and buried in the soil was i nvestigated. The seeds were buried in the field at 20 cm depth on nine dates between April 15 and September 20. Samples of seeds were exhumed in 10-d intervals and the proportion of germinating seeds was determined at 25 C in light. Regardles of the tim e of burial, dormancy was terminated quickly. Withi 30 d after burial, the percentageof germination increased from the original 8-33 % to 64-85 %. The rate of increase of germination within 20 d after burial (2.1-3.1 % per day) did not significantly dif fer between dates, although average soil temperatures were different. Achenes buried in the autumn pass through annual dormancy cycles, but achenes from dry shoots become germinable all year round after a shor period of burial. (en)
Title
  • Termination of innate seed dormancy in Rumex obtusifolius under field conditions.
  • Termination of innate seed dormancy in Rumex obtusifolius under field conditions. (en)
skos:prefLabel
  • Termination of innate seed dormancy in Rumex obtusifolius under field conditions.
  • Termination of innate seed dormancy in Rumex obtusifolius under field conditions. (en)
skos:notation
  • RIV/00027006:_____/01:00000012!RIV/2002/GA0/M01002/N
http://linked.open.../vavai/riv/strany
  • 284;289
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(GA521/99/1116)
http://linked.open...iv/cisloPeriodika
  • 3
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 698553
http://linked.open...ai/riv/idVysledku
  • RIV/00027006:_____/01:00000012
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • Rumex obtusifolius; seed; dispersal; germination; temperature; dormancy (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • DE - Spolková republika Německo
http://linked.open...ontrolniKodProRIV
  • [8A755A036ACE]
http://linked.open...i/riv/nazevZdroje
  • Zeitschrift für Pflanzenkrankheiten und Pflanzenschutz
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...ocetUcastnikuAkce
http://linked.open...nichUcastnikuAkce
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 108
http://linked.open...iv/tvurceVysledku
  • Martinková, Zdenka
issn
  • 0340-8159
number of pages
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