‘青林’核桃容器播种育苗及苗木生长规律研究  

Study on Container Nursery and Growth Regularity of ‘Qingling'Walnut Seedlings

作　　者：韩传明[1] 王翠香[1] 赵登超[1] 刘方春[1] 侯立群[1] 

机构地区：[1]山东省林业科学研究院,山东济南250014

出　　处：《山东农业科学》2014年第1期54-57,共4页Shandong Agricultural Sciences

基　　金：国家林业公益性行业科研专项"核桃种质资源评价与新品种选育及繁育技术(201004009-7)";山东省农业良种工程项目"核桃新品种选育(2011lz10-03)"

摘　　要：利用容器育苗技术，在温室内进行了‘青林’核桃种子容器育苗试验，研究了核桃种子的出苗规律，并对苗木生长过程进行了初步探讨与分析。结果表明：‘青林’核桃容器育苗的发芽率为97．0％，出苗率为90．3％，苗木生长整齐，出苗期较短；苗木生长可分为出苗期、幼嫩期、速生期和苗木硬化期4个时期；1年生苗木苗高、地径出现两次生长速生期：第一次苗高、地径速生期为3月下旬～4月上旬，第二次苗高速生期在7月中旬～8月中旬，地径速生期在8月上旬～8月下旬，地径速生期滞后于苗高生长20 d左右；苗高、地径的生长符合“S”形生长曲线；1年生容器播种苗干鲜重之比为0．494，地上与地下部分鲜重之比为1．072，地上与地下部分干重之比为0．915。The container nursery experiment was conducted with ‘Qinglin ’ walnut （ Juglans regia L.） seeds in greenhouse to study the emergence rule and growth process of seedlings .The results showed that the germination rate of ‘Qinglin’ walnut seeds was 97.0%, and the emergence rate of seedlings was 90.3%.The seedlings grew uniformly , and the seeding time was shorter .The growth of ‘Qinglin’ walnut seedlings passed through four consecutive phases including seedling emergence period , young period , fast -growing period , and hardening period .Two fast -growing periods of annual walnut seedlings appeared in plant height and ground diameter;the first one was from the last ten -day of March to the first ten-day of April;the second one for plant height was from the middle ten -day of July to that of August , while that for ground diameter was from the first to the last ten-day of August .The change of plant height and ground diameter could be well de-scribed by the typical “S” curve.For the annual walnut seedlings , the ratio of dry weight to fresh weight was 0 .494;the ratio of fresh weight between the overground part and underground part was 1 .072 , while that of dry weight was 0.915.

关 键 词：'青林’核桃 容器育苗 生长规律 

分 类 号：S664.104.3[农业科学—果树学]