Αποτελέσματα Αναζήτησης
Shade tolerance is a complex, multi-faceted property of plants. Different plant species exhibit different adaptations to shade, and a particular plant can exhibit varying degrees of shade tolerance, or even of requirement for light, depending on its history or stage of development.
Tree species that can compete well in fully shaded conditions are shade tolerant, while those that require full sunlight and limited competition are shade intolerant. Between these two extremes are trees that are intermediate in their ability to develop and compete for resources in shaded conditions ( Martin and Gower, 1996 ).
Shade-tolerant species are species that are able to thrive in the shade, and in the presence of natural competition by other plants. Shade-intolerant species require full sunlight and little or no competition. Intermediate shade-tolerant trees fall somewhere in between the two.
Shade tolerance is the relative capacity of tree species to compete for survival under shaded (which is to say, less-than-optimal) conditions. It is a tree trait, a functional adaptation that varies among species.
Shade tolerance refers to a tree's ability to establish, survive, and thrive in shaded conditions with limited access to direct sunlight. It also encompasses a tree's ability to compete for resources and regenerate under a continuous canopy. From: Introduction to Forestry and Natural Resources, 2013. About this page.
1 Φεβ 2013 · Shade-tolerant species from forest understories cannot outgrow surrounding trees and adopt a tolerance response. Unlike shade avoidance, virtually nothing is known about regulation of shade tolerance. In this opinion article, we discuss potential modes of molecular regulation to adopt a shade-tolerance rather than a shade-avoidance strategy.
Light gradients are ubiquitous in nature, so all plants are exposed to some degree of shade during their lifetime. The minimum light required for survival, shade tolerance, is a crucial life-history trait that plays a major role in plant community dynamics.
