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Light transmittance and reflectance of sun and shade leaves of apple (cv. Golden Delicious) were measured from May to September over the 380-700 nm wa...
Read morePatterns of light interception, in both time and space, were measured during 1973 and 1974 in apple orchards. Several planting systems were investigat...
Read moreThere was a marked diurnal variation of light interception by hedgerow orchards on sunny days in June and July. This variation was considerably reduce...
Read moreThe design of an instrument for the simultaneous measurement of photosynthetically active radiation and red, far-red and blue light is described. The ...
Read moreLight interception by a reconstructed canopy of Calluna vulgaris was recalculated on the basis of total skylight and equations developed to estimate i...
Read moreAn instrument for measuring the distribution of irradiance in grass canopies is described; it demonstrated that light from an overcast sky was more un...
Read moreThe path of a point quadrat through a stand until it first contacts foliage is comparable to the path of a ray of light from the sky until it is inter...
Read moreThe apple orchards studied had discontinuous bush-and hedge-type canopies of mean leaf-area indexes of 1-1-4. These values were low, owing to the exis...
Read more[See FA 38, 1151] Needles of Sitka spruce were illuminated on either the top or bottom surfaces or on both simultaneously, using parallel beam light. ...
Read moreThe photosynthetic capacity of shoots from whole plants grown in low light (low light phenotypes) was higher than that of high light phenotypes, where...
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