icult ural ▁industry ▁profession als . ▁ ▁The ▁society ▁dates ▁from ▁ 1 8 6 4 , ▁and ▁was ▁formally ▁constit uted ▁in ▁ 1 9 5 9 . ▁It ▁is ▁based ▁in ▁Le u ven , ▁Belg ium , ▁and ▁is ▁a ▁found ing ▁member ▁of ▁the ▁Global ▁H ort icult ural ▁In iti ative . ▁In ▁ 2 0 0 8 , ▁it ▁has ▁over ▁ 7 , 0 0 0 ▁members ▁from ▁about ▁ 1 5 0 ▁countries . ▁ ▁Publications ▁These ▁I SH S ▁publications ▁are ▁standard ▁works ▁in ▁the ▁field ▁of ▁h ort icult ure : ▁ ▁Act a ▁H ort icult ura e ▁is ▁a ▁series ▁of ▁scientific ▁technical ▁publications , ▁mainly ▁the ▁proceed ings ▁of ▁I SH S ▁Sym pos ia ▁and ▁the ▁I SH S ▁International ▁H ort icult ural ▁Congress . ▁All ▁articles ▁( over ▁ 4 2 , 0 0 0 ) ▁are ▁available ▁online ▁on ▁a ▁paid ▁basis . ▁Chron ica ▁H ort icult ura e ▁is ▁a ▁quarter ly ▁publication ▁sent ▁to ▁I SH S ▁members ▁and ▁other ▁subscri bers . ▁Un like ▁a ▁scientific ▁journal , ▁it ▁contains ▁h ort icult ural ▁articles ▁of ▁interest ▁to ▁a ▁broad ▁audience ▁of ▁I SH S ▁members ▁and ▁other ▁profession als ▁in ▁science ▁and ▁industry . ▁The ▁full ▁text ▁of ▁all ▁issues ▁is ▁available ▁for ▁free ▁download ▁online . ▁Script a ▁H ort icult ura e ▁is ▁a ▁series ▁of ▁works ▁devoted ▁to ▁specific ▁h ort icult ural ▁issues ▁such ▁as ▁position ▁papers