Ferree, David C. Influence of various times of summer hedging on yield and growth of apple trees - Wooster, Ohio : Ohio Agricultural Research and Development Center, 1984 - pp. 33-37 - Research circular ; 283 . - Research circular ; 283 . Enc. con otros impresos similares LCCN: 52420 Subjects--Topical Terms: Manzana--Crecimiento.Manzana--Poda.Manzana--Rendimiento.