Results 41 to 50 of about 18,205 (212)

Simultaneous 3/4‐power scaling of leaf mass and 2/3‐power scaling of leaf area with stem mass in plants

open access: yesGrassland Research, EarlyView.
Abstract Background Plant allometry theory developed in the last century focused on 2/3‐power scaling, determined by light interception considerations. More recently, 3/4‐power scaling based on the properties of vascular distribution networks has been proposed.
Cory Matthew   +2 more
wiley   +1 more source

Environmental Impact of Silicic Magmatism in Large Igneous Province Events

open access: yesGeophysical Monograph Series, Page 133-151., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Scott E. Bryan
wiley  

+1 more source

The effects of defoliation on plant community, root biomass and nutrient allocation and soil chemical properties on semi-arid steppes in northern China

open access: yes, 2012
Semi-arid steppes in northern China have severely deteriorated over the past 50 years, mostly due to improper grazing management. A defoliation experiment was conducted on a Leymus chinensis-dominated semi-arid steppe to provide guidelines of grazing ...
Wang, G-L.   +13 more
core   +1 more source

Integrating belowground bud bank dynamics into grassland monitoring and management

open access: yesGrassland Research, EarlyView.
Adaptive Management of Grassland Ecosystems: A Bud Bank Perspective. Abstract Belowground bud banks are the core regenerative organs of perennial herbaceous plants, playing an irreplaceable role in population persistence, community assembly, and ecosystem restoration.
Zhiming Zhang, Zhigang Zhao, Kun Liu
wiley   +1 more source

Determination of the impact of continuous defoliation of Lolium perenne and Trifolium repens on bacterial and fungal community structure in rhizosphere soil

open access: yes, 2005
To determine the effects of defoliation on microbial community structure, rhizosphere soil samples were taken pre-, and post-defoliation from the root tip and mature root regions of Trifolium repens L. and Lolium perenne L.
Clayton, S. J.   +8 more
core   +1 more source

Fine mapping of cucumber downy mildew resistance loci identifies candidate genes linked to ethylene‐associated stomatal defence

open access: yesJournal of the Science of Food and Agriculture, EarlyView.
Abstract BACKGROUND Downy mildew, caused by Pseudoperonospora cubensis, is one of the most destructive diseases affecting cucumber and remains difficult to manage sustainably through fungicide‐dependent control strategies. Although several resistance loci have been reported, many previously mapped regions remain too broad for efficient marker‐assisted ...
Mahdi Badri Anarjan   +8 more
wiley   +1 more source

Cotton Defoliation Evaluations, 1999

open access: yes, 2000
Two field experiments were conducted near Marana and Coolidge, AZ in 1999 to evaluate the effectiveness of a number of defoliation treatments on Upland (var. DP 33b and AP 6101) cotton.
Norton, E. R., Silvertooth, J. C.
core   +3 more sources

The Effects of Limitation of Source and Sink on Yield and Yield Components of

open access: yesپژوهشهای زراعی ایران, 2011
In order to study the effect of limitation of source and sink on yield and yield components of cumin, an experiment was conducted in complete randomized block design in Research Field of Agriculture Faculty of Ferdowsi University of Mashhad during the ...
M. Kafi, H. R. Khazae, S. Sabouri rad
doaj   +1 more source

Simple plant–plant interaction patterns predict structural niche and fitness differences in a multitrophic grassland community

open access: yesOikos, EarlyView.
Understanding how species interactions relate to biodiversity requires linking complex interaction networks to coexistence mechanisms. In diverse communities, interactions span trophic levels and include pairwise and higher‐order effects, yet their relative importance for explaining population dynamics remains poorly understood.
Rodrigo R. Granjel   +4 more
wiley   +1 more source

Leaf defoliation and Tabernaemontana rotensis (Asterids: Gentianales: Apocynaceae) flower induction and fruit development

open access: yesJournal of Threatened Taxa, 2023
Tabernaemontana rotensis (Kaneh.) P.T. Li is an attractive small tree that is endemic to the islands of Guam and Rota. Conservation efforts of the threatened population are constrained by lack of research.
Thomas E. Marler
doaj   +1 more source

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