Table of Contents
Contributors, vii
Acknowledgements, ix
Introduction 1
Part I: Continental views of weed infestation maps Hansjörg Krähmer
1 Europe 7 Hansjörg Krähmer
2 Asia 23 Hansjörg Krähmer
3 North America 47 Hansjörg Krähmer
4 South America 56 Hansjörg Krähmer
5 Africa 71 Hansjörg Krähmer
6 Australia 81 Hansjörg Krähmer
Part II: Special crop view and mapping of cotton weeds
7 Cotton cultivation 87 Garifalia Economou, Ahmet Uludag and Hansjörg Krähmer
8 Global cotton weed distribution 90 Garifalia Economou, Ahmet Uludag and Hansjörg Krähmer
9 Farming practices and weed infestation 101 Garifalia Economou, Ahmet Uludag and Hansjörg Krähmer
10 Summary of global cotton weed distribution 102 Garifalia Economou, Ahmet Uludag and Hansjörg Krähmer
Part III: Invasive weed species
11 Overview of selected problems 105 Hansjörg Krähmer
Part IV: Global zones with similar weed infestation
12 Introduction to global zones with similar weed infestation 115 Hansjörg Krähmer
13 Cereal weed belts 117 Hansjörg Krähmer
14 Maize weed belts and areas of similar weed infestation 120 Hansjörg Krähmer
15 Soybean weed zones and areas 123 Hansjörg Krähmer
16 Rice weed belts 124 Hansjörg Krähmer
Part V: General observations on all infested sites
17 Ranks and number of weed species in a defined crop 129 Hansjörg Krähmer
18 Specialization of weeds and biodiversity 130 Hansjörg Krähmer
Part VI: Answers to key questions: What makes which weed grow where and when? 19 Weeds as crop companions 135 Hansjörg Krähmer
20 Can we associate weeds with specific environmental conditions? 139 Hansjörg Krähmer
21 What makes weeds grow in monocultures, what makes them compete with the crop and with other weeds? 161 Hansjörg Krähmer
Part VII: Aesthetics, rare weeds and production objectives in agriculture
22 Rare weeds in arable crops and aesthetics: harmony or hunger? 169 Hansjörg Krähmer
Part VIII: Weeds in meadows, pastures and rangeland
23 Overview of grassland 177 Hansjörg Krähmer
Part IX: Aquatic and wetland weeds
24 Introduction 185 Hansjörg Krähmer
25 Morphological adaptation to water 192 Hansjörg Krähmer
26 Aerenchyma within the stem 194 Hansjörg Krähmer
27 Stem and vascular bundle modifications 215 Hansjörg Krähmer
28 The root 277 Hansjörg Krähmer
29 The leaf 311 Hansjörg Krähmer
30 Vegetative propagation 371 Hansjörg Krähmer
31 Aesthetics, species attractiveness and rare aquatic species 377 Hansjörg Krähmer
32 Growing conditions of aquatic plants 382 Hansjörg Krähmer
33 Dominance and noxious effects of selected aquatic and wetland species 384 Hansjörg Krähmer
34 Adaptation of terrestrial weeds to water stress: Waterlogging and temporary hypoxia 391 Hansjörg Krähmer
35 Weeds in rice 396 Hansjörg Krähmer
Part X: Which ecological rules described in textbooks will help us to understand the unevenness of weed species distribution? 36 Asymmetric competition within arable crops 401 Hansjörg Krähmer
37 Comparison of closely related species and their ability to grow as weeds in crops 404 Hansjörg Krähmer
Part XI: Factors contributing to the temporal and spatial distribution of weed resistance: a map-based analysis
38 How has Alopecurus myosuroides resistance changed over the years? 409 Martin Hess, Johannes Herrmann, Hansjörg Krähmer and Roland Beffa
39 Weeds to watch 420 Hansjörg Krähmer
Part XII: Conflict between the dominance of some weeds and the intention to preserve rare species
40 Can we shape nature into what we want it to be? 425 Hansjörg Krähmer
Part XIII: Weed data collection, analysis and presentation of results
41 Introduction to weed mapping methodology 429 Michaela Kolářová and Pavel Hamouz
42 Data collection 430 Michaela Kolářová and Pavel Hamouz
43 Approaches to the analysis of weed distribution 440 Michaela Kolářová and Pavel Hamouz
44 Presentation of weed mapping results 456 Michaela Kolářová and Pavel Hamouz
Appendix 462
Index 467