1. Hedgerow orchard design for most efficient interception of solar radiation;Cain;Search Agriculture, (Geneva N.Y.),1972
2. Tree density and double row system in apple orchard;Christensen;Tidsskr. Planteavl,1976
3. The relationship of Granny Smith apple tree growth and early cropping to planting density and rectangularity;Cripps;J. Hortic. Sci.,1975
4. Comparison of 2 planting systems in orchards as regard to the amount of radiation intercepted by the trees;Ferguson;Neth. J. Agric. Sci.,1960
5. Interception of light by model hedgerow orchards in relation to latitude, time of year, and hedgerow configuration and orientations;Jackson;J. Appl. Ecol.,1972