3Tustin D S,Cashmore W M,Bensley R B.The influence of orchard row canopy discontinuity on irradiance and leaf areadistribution in Apple trees. Journal of Horticultural Science&Biotechnology . 1998
4Buler Z,,Mika A.The influence of canopy architecture onlight interception and distribution in’’Sampion’’apple trees. Journal of Fruit and Ornamental Plant Research . 2009
5Balan V,Cimpoies G.Culture system of trees fruit productionefficiency in relation to light as an output influencing fac-tor. Bulletin UASVM Horticulture . 2009
6Hampson C R,Quamme H A,Kappel F,et al.Varying densitywith constant rectangularity.I.Effects on apple tree growthand light interception in three training systems over tenyears. HortScience . 2004
