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 language | English (US) |
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Title of host publication | Persistence Strategies of Weeds |
Publisher | wiley |
Pages | 19-42 |
Number of pages | 24 |
ISBN (Electronic) | 9781119525622 |
ISBN (Print) | 9781119525608 |
DOIs | |
State | Published - Jan 1 2022 |
All Science Journal Classification (ASJC) codes
- General Engineering
- General Agricultural and Biological Sciences