Seed Production, Dissemination, and Weed Seedbanks

Acacio Goncalves Netto, Pedro Christoffoleti, Mark VanGessel, Saul J.P. Carvalho, Marcelo Nicolai, Caio Brunharo

Research output: Chapter in Book/Report/Conference proceedingChapter

2 Scopus citations

Abstract

High levels of seed production, long seed dormancy periods, and seed longevity are important traits of weed persistence. Seeds are disseminated within and between fields and over long distances. Dissemination can occur either with no external assistance (autochory) or with the aid of external vectors (allochory). Allochory, dissemination aided by external means, can be classified by the disseminating agent involved, e.g. water, wind, animals, and humans. Several different chemicals have been reported to alleviate physiological seed dormancy in several weed species. However, these chemicals may not affect seeds which are dormant because of the impermeability of seed coat to water or oxygen. Some substances that stimulate weed seed germination are briefly discussed. Weed seeds and soil seedbanks are critical for weeds to survive and persist in an agroecosystem. Crop rotation, crop production, and management have very large impacts on weed seed production.

Original languageEnglish (US)
Title of host publicationPersistence Strategies of Weeds
Publisherwiley
Pages19-42
Number of pages24
ISBN (Electronic)9781119525622
ISBN (Print)9781119525608
DOIs
StatePublished - Jan 1 2022

All Science Journal Classification (ASJC) codes

  • General Engineering
  • General Agricultural and Biological Sciences

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