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Birte Boelt

Post-harvest treatments in smooth-stalked meadow grass (Poa pratensis L.) - effect on carbohydrates and tiller development

Research output: Contribution to book/anthology/report/proceedingArticle in proceedingsResearch

  • Afgrødeøkologi og Produktkvalitet
  • Department of Genetics and Biotechnology

Temperate grass species require a period of short days/low temperature to respond to flower induction stimuli. The same environmental conditions stimulate the increase in carbohydrate concentration in aboveground biomass and the accumulation of reserve carbohydrates in the basal plant parts. The present investigation was initiated to investigate the effect of post-harvest treatments on dry matter production in autumn, carbohydrate content, the number of reproductive tillers and seed yield in a turf-type cultivar ‘Conni' of smooth-stalked meadow grass. The results show that post-harvest treatments influence seed yield and yield components with the general tendency that defoliation increases the number of reproductive tillers, whereas chopping of straw results in fewer reproductive tillers and a reduced seed yield. This effect was eliminated if the crop was defoliated approximately six weeks after harvest and all residues removed. The results from plant samples in autumn indicate that decreasing aboveground biomass production leads to a higher carbohydrate concentration which may stimulate the reproductive development in smooth-stalked meadow grass.

Original languageEnglish
Title of host publicationSeed production in the northern light : Proceedings of the Sixth International Herbage Seed Conference
EditorsTrygve S Aamlid, Lars T Havstad, Birte Boelt
Number of pages4
PublisherBioforsk
Publication year2007
Pages266-269
ISBN (print)978-82-17-00234-5
Publication statusPublished - 2007
EventInternational Herbage Seed Conference - Gjennestad, Norway
Duration: 18 Jun 200720 Jun 2007
Conference number: Sixth

Conference

ConferenceInternational Herbage Seed Conference
NummerSixth
LandNorway
ByGjennestad
Periode18/06/200720/06/2007
SeriesBioforsk FOKUS
Number12
Volume2
ISSN0809-8654

    Research areas

  • Straw, Residue management, Defoliation, Open field burning

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