(6) in a whole growth period, sunshading net with appropriate sunshading rate should be selected according to variety shade tolerance, and vegetables must be exposed and covered in time, or covering sunshading net could reduced output because of lack of illumination.
3:Deciduous broadleaf forest and artificial coniferous forest occupy most of the area, and will evolute from the communities of tree species with no shade tolerance to the communities of tree species with dominant shade tolerance.
3: Deciduous broadleaf forest and artificial coniferous forest occupy most of the area and will evolute from the communities of tree species with no shade tolerance to the com-munities of tree species with dominant shade tolerance.
It is very important for the economic development and ecological construction of Liaoning. The main species of the natural secondary forest in the mountainous area of eastern Liaoning was studied. They are: Pinus koraiensis, Picea koraiensis, Quercus mongolica, Fraxinus mandshurica, Fraxinus rhynchophylla, Phellodendron amurense Rupr and Tilia amurensis Rupr. Under natural conditions, their seedlings were planted,and the shade-tolerance of them were measured.
Light compensation points, light saturation points, chlorophyll contents and value of Ca/Cb can all be important index of shade-tolerance, leaf epidermis and anatomical character had close relation with shade-tolerance.
Seed size and shade-tolerance: a comparative analysis of North American temperate trees
A significant relationship was found between large seed mass and shade-tolerance for angiosperms, but not for gymnosperms.
The stimulation of light-saturated photosynthesis by CO2 did not appear to correlate with shade-tolerance ranking of the individual species.
C4 grasses are virtually absent from shaded habitats, and the biochemical model is employed to examine the implications of IVD for shade-tolerance in C4 grasses.
We examined saplings and mature trees of paper birch, yellow birch, red maple and sugar maple, which varied in successional status (shade-tolerance) and co-occurred at Harvard Forest, Petersham, Mass., USA.
The effects of light and elevated temperatures on the efficiency of energy conversion in PSII [?PSII?=?(Fm'-Fs)/Fm'], pigment composition and heat tolerance of shade-acclimated Alocasia macrorrhiza were investigated.
These results suggest that it would be advantageous to evaluate different legumes and grasses for tolerance of shade and moisture stress in future studies.
The species converge in features that confer tolerance of shade plus drought by reducing demand for resources.
No single narrowly defined functional type is needed for tolerance of shade plus drought.