适合我国东北寒冷地区栽培的桑树品种鉴定试验  

Identification Trials on Mulberry Varieties Suitable for Growing in the Cold Area of Northeast of China

作　　者：王建科[1] 刘忠云[1] 王杨[2] 蒋巍[2] 冯有贵 王东风[1] 

机构地区：[1]黑龙江省蚕业研究所,哈尔滨150086 [2]哈尔滨金融高等专科学校,哈尔滨150038 [3]甘肃省康县蚕桑技术服务中心,甘肃康县746500

出　　处：《蚕业科学》2009年第3期599-602,共4页ACTA SERICOLOGICA SINICA

基　　金：黑龙江省科技攻关计划项目(编号GC02B711)

摘　　要：为了选拔适合我国东北寒冷地区栽培的桑树品种,对北方地区保存、引进的15份桑树品种资源材料进行了大面积生产鉴定试验。综合各品种的抗寒性和产量性状成绩,选拔出龙桑一号、辽鲁11号、桲椤桑3个性状较为突出的品种。3个品种在年均气温2.6℃、年均降雨量350 mm左右的干旱寒冷地区栽培,枯梢率分别为12.4%、21.3%、18.0%,桑叶产量分别达到10500、8700、11280 kg/hm2,具有抗寒性强、产叶量高的特点,适合作为东北寒冷地区养蚕用桑和生态经济林建设栽植的桑树品种。In order to select mulberry varieties suitable for planting in the cold area of the northeast of our country, 15 mulberry germplasm resources that had been introduced into and preserved in northeast area were used to conduct large-scale production trials. Based on the performance of resistance to coldness and productivity traits of all the tested varieties, 3 outstanding mulberry varieties, namely Longsang 1, Liaolu 11 and Poluosang, had been selected. While growing in dry and cold areas with yearly average temperature of 2.5℃ and annual rainfall of around 350 mm, these 3 varieties had twig withering rates as low as I2.4%, 21.3% and 18.0%. Their leaf yields reached 10 500, 8 700 and 11 280 kg/hm^2. These coldness-resistant and high yield mulberry varieties are suitable for growing in the cold areas as forage plant in sericulture and as a component of ecological forest.

关 键 词：桑树品种资源 品比试验 抗寒性 丰产性 

分 类 号：S888.3[农业科学—特种经济动物饲养]