枣树优良品种引种及选择试验

葫芦岛市于1994－1995年，分两批从山东、河北、河南等省引进18个枣树品种，分两处试验地进行栽培试验。结果表明，马连小枣、骏枣、灰枣、赞皇大枣产量明显高于对照品种，且表现较好，可在当地适量引进栽培；圆铃枣产量虽高，但自然成熟差，可引种驯化后再推广栽培；金丝小枣产量最低，不宜引种栽培。

Introduction and selection of Chinese jujube species

Introduction of 18 Chinese jujube variants from other provinces were conducted in recent years in Huludao city.Field tests showed that Malian,Jun,Hui and Zhanhuang variants were good for introduction with higher fruit yields while yield of Jinshi was lower than local trees.Although natural mature of Yuanling was late in the city,its yield was high and could be introduced after acclimatization.