CAJ | 학술논문

在寒温带亚湿润干旱区，引入以旱柳（ Salix matsudana）为母本、垂柳（ S．babylonica）为父本的柳树杂交新品系，经苗期测试、品系评比和区域化试验示范等20年多地点多指标的测定与筛选，选育出柳树新品种青竹柳（ S．matsudana×babylonica‘Qingzhu’）。该品种在干形、生长量、抗逆性、材质等方面表现突出。青竹柳树干通直，9年生时分枝角23．7°，冠幅2．72 m。在齐齐哈尔地区11年生青竹柳平均树高、胸径和材积分别为9．37 m、9．73 cm和0．0338 m3。木材纤维长1190μm，长宽比72．3，气干密度0．51 g· cm-3。对柳树易感病害烂皮病、溃疡病及多发害虫白杨透翅蛾（Paranthrene tabaniformis）、柳瘿蚊（Rhabdpo haga salicis）、木蠹蛾（Holcocerus insularis）等抗性较强。在北纬48°25′以南、最低温-40．3℃以上、降水量＞400 mm、含盐量＜0．2％、无霜期120 d以上的自然条件下生长良好。
재한온대아습윤간한구，인입이한류（ Salix matsudana）위모본、수류（ S．babylonica）위부본적류수잡교신품계，경묘기측시、품계평비화구역화시험시범등20년다지점다지표적측정여사선，선육출류수신품충청죽류（ S．matsudana×babylonica‘Qingzhu’）。해품충재간형、생장량、항역성、재질등방면표현돌출。청죽류수간통직，9년생시분지각23．7°，관폭2．72 m。재제제합이지구11년생청죽류평균수고、흉경화재적분별위9．37 m、9．73 cm화0．0338 m3。목재섬유장1190μm，장관비72．3，기간밀도0．51 g· cm-3。대류수역감병해란피병、궤양병급다발해충백양투시아（Paranthrene tabaniformis）、류영문（Rhabdpo haga salicis）、목두아（Holcocerus insularis）등항성교강。재북위48°25′이남、최저온-40．3℃이상、강수량＞400 mm、함염량＜0．2％、무상기120 d이상적자연조건하생장량호。
In the sub-humid areas of cold temperate, we introduced new variety of the hybrid willow ( Salix matsudana being male parent and S.babylonica being female parent).By multi-site and multi-index determination, selection within the seedling test, and strain appraisals and regionalization pilot demonstration more than 20 a, we selected new varieties of Salix matsudana×babylonica cv.‘Qingzhu’ .The stem of S.matsudana×babylonica cv.‘Qingzhu’is straight , the branch-ing angle of nine-year-old Salix matsudana×babyloin ca cv.‘ Qingzhu’ is 23.7°, and the crown width is 2.72 m.The aver-age tree height, DBH and volume of 11-year-old S.matsud ana×babylonica cv.‘Qingzhu’ are.Respectively, 9.37 m, 9.73 cm and 0.033 8 m3 in Qiqihar region.Fiber length of wood is 1 190μm, aspect ratio is 72.3, and air-dry density is 0.51 g· cm-3 .S.m atsudana×babylonica cv.‘Qingzhu’ has stronger resistance on diseases ( Valsa sordida Nits., Botryosphaeria ri-bis( Tode) Grossenb.et Duggar) and pests ( Paranthrene Tabaniformis, Rhabdophaga phliorobiniae, Prinoxystus robini-ae).S.matsudana×babylonica cv.‘Qingzhu’ grows well under the latitude of 48°25′N, above minimum temperature of-40.3℃, precipitation of more than 400 mm, the salt content of less than 0.2 %and frost-free period of more than 120 d.