美国长山核桃引种试验初报  

Introduction Experiment of Carya illinoensis

作　　者：桑巴叶 王秀梅 陈启民 Sang Baye;Wang Xiumei;Chen Qimin(Institute of Afforestation and Sand Control Research,Xinjiang Academy of Forestry Science,Urumqi 830063,China;Xinjiang Jinghe Desert Ecosystem Research Station,Jinghe 833300,China;Bayingolin Mongolian Autonomous Prefecture of Forestry Science and Technology Promotion Center,Korla 841000,China)

机构地区：[1]新疆林科院造林治沙研究所,新疆乌鲁木齐830063 [2]新疆精河荒漠生态系统国家定位观测研究站,新疆博尔塔拉833300 [3]巴音郭楞蒙古自治州林业科学技术推广中心,新疆库尔勒841000

出　　处：《防护林科技》2021年第6期40-43,共4页Protection Forest Science and Technology

基　　金：新疆维吾尔自治区公益性科研院所科研基本业务费项目:长山核桃苗期抗寒性及御寒技术研究;新疆维吾尔自治区林果业基础研究专项资金项目:长山核桃良种选育。

摘　　要：以当地采收的核桃种子为对照,对3种美国长山核桃(绍兴、埃利奥特和亚林21号)进行引种试验,对其成活率、生长和不同年龄幼苗耐寒等情况进行测定。结果表明:4个品种出苗率最高为本地采收的种子(60%),其次为绍兴(50%)。埃利奥特苗期生长量最大,绍兴次之,亚林21号最差。1~3年生幼苗均遭受不同程度冻害,2年生幼苗在-15℃以下低温受冻害明显,3年生幼苗在-20℃以下低温遭受冻害,随年龄增长,受害程度逐渐减轻;至4龄苗时冻害已较弱,可抵御-35℃低温;成年树可抵御-40℃低温,-35℃依然可以萌发。The introduction experiment of Carya illinoensis was conducted to observe the survival rate,growth&cold tolerance of seedlings of three introduced varieties and local harvested seed.Result shows that the highest emergence rate of the four varieties is 60%of the local seeds,followed by 50%of Carya illinoensis‘Shaoxing’.The growth of Carya illinoensis‘Elliot’is the largest,followed by Carya illinoensis‘Shaoxing’and Carya illinoensis‘Yalin No.21’.One-three-year-old seedlings suffered from different degrees of freezing injury,two-year-old seedlings suffer from freezing injury obviously at low temperature below-15℃,three-year-old seedlings suffered from freezing injury at low temperature below-20℃.With the increase of age,the degree of damage gradually reduced.At the 4th age,the freezing injury is weak and could resist a low temperature of-35℃,while mature wood could resist low temperature of-40℃,and could still germinate at-35℃.

关 键 词：长山核桃 引种 出苗率 生长量 冻害 

分 类 号：S792.13[农业科学—林木遗传育种]