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自1982年以来,我们用本地榆叶梅作砧木嫁接吉林1、3、6号李树,经7年的栽培观察,发现树体表现抗寒、矮化、早果、丰产,适宜密植;同时还发现具有抗盐碱、耐脊薄、树干不流胶、病虫害轻等优点。一、榆叶梅特征。别名欧李,系蔷薇科、樱桃属植物,野生,落叶灌木,树体高可达2米,矮的1米左右,枝条灰褐色,一年生枝条红褐色,叶子截叶状椭圆形或倒卵形,基部楔形,叶下面被微电。花五辫粉红至白色。果色有赤红、紫红、黄绿色,果色和树体高矮密度有关,果实7月中下旬成熟。果核长椭圆形和扁圆形,每市斤约1570—2250粒。二、种子萌发率高。冬前在地深30—40厘米处砂藏,翌年4月播种,在同样条件下,比毛桃和山杏容易解除休眠,催芽率可高达100％。种子每斤为
Since 1982, we have used local elm plum as rootstock grafted Liyuan No. 1, 6 and 6 in Jilin Province. After seven years of cultivation observation, we found that the tree body showed cold, dwarf, early fruit, high yield, suitable for close planting; meanwhile, Also found to have resistance to salt and alkali, thin ridge, the trunk is not plastic, light pests and other advantages. First, the characteristics of Ye Ye plum. Alias Ou Li, the Department of Rosaceae, cherry, wild, deciduous shrubs, trees up to 2 meters high, short 1 meter, branches gray brown, annual reddish brown branches, leaves truncate leaf-shaped oval or obovate, base wedge , Below the leaf was microelectronics. Flowers five braided pink to white. Fruit color is red, purple, yellow-green, fruit and tree height density, fruit mature in mid-July. Fruit long oval oval and flat round, about 1570-2250 pounds per city. Second, the high rate of seed germination. Pre-winter in the ground 30-40 cm deep sand storage, sowing in April the following year, under the same conditions, easier than the peach and apricot dormancy, germination rate up to 100%. Seeds for each catty