Journal ArticleDOI
Allelopathy as Expressed by Helianthus annuus and Its Role in Old-Field Succession
Roger E. Wilson,Elroy L. Rice +1 more
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This article is published in Bulletin of the Torrey Botanical Club.The article was published on 1968-09-01. It has received 200 citations till now. The article focuses on the topics: Helianthus annuus.read more
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Journal ArticleDOI
Allelochemics: Chemical Interactions between Species
Robert H. Whittaker,Paul Feeny +1 more
Book ChapterDOI
Changes in the Levels of Plant Secondary Metabolites Under Water and Nutrient Stress
TL;DR: Advances in the understanding of the functional roles ofsecondary metabolites in plants, however, and new information about how pest resistance is altered by stress should stimulate additional interest in the responses of secondary metabolites to stress.
Journal ArticleDOI
Facilitation and Interference of Quercus Douglasii on Understory Productivity in Central California
TL;DR: It is found that grassland productivity is likely to be facilitated by nutrient inputs via litterfall and throughfall under all trees, but that trees with low understory grassland productivities had substantially higher amounts of fine roots in the upper 50 cm of soil and much lower predawn xylem pressure potentials than trees with high understory productivities and presumably deeper root systems.
Journal ArticleDOI
The allelopathic effects of Eucalyptus camaldulensis.
R. del Moral,Cornelius H. Muller +1 more
TL;DR: In California the annual vegetation adjacent to natural-ized stands of Eucalyptus camaldulensis often is inhibited severely, and water-soluble toxins found in the litter inhibited herb growth in laboratory, green- house, and field experiments.
References
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Soil and plant analysis.
TL;DR: Piper as discussed by the authors presents a survey of methods for soil and plant analysis, with a focus on a specific analysis or group of related analyses, and gives the working details of all or nearly all the existing methods.