川中丘陵区山桐子人工林生长和结实特性研究  

A Study of Growth and Fruiting Characteristics of Idesia polycarpa Plantation in Hilly Area of Central Sichuan

作　　者：杜阳平 严贤春[1] 罗建勋[2] 刘芙蓉[2] 王海峰 DU Yangping;YAN Xianchun;LUO Jianxun;LIU Furong;WANG Haifeng(School of Life Sciences,China West Normal University,NanChong 637000,China;Sichuan Academy of Forestry Sciences,Chengdu 610081,China)

机构地区：[1]西华师范大学生命科学学院,四川南充637000 [2]四川省林业科学研究院,四川成都610081

出　　处：《四川林业科技》2020年第2期15-21,共7页Journal of Sichuan Forestry Science and Technology

基　　金：木本油料突破性新品种选育、育种材料与方法创新2016NYZ003506;国家林木种质资源共享服务平台2019GJPT01;四川省林木种质资源平台建设2019JDPT0028-03;西华师范大学英才科研基金项目(17YC353)。

摘　　要：山桐子是四川优良乡土木本油料树种,开展实生人工林生长和果实性状研究,为下一步开展人工林优良家系和优良无性系选择提供科学依据。对川中丘陵区5年生实生人工林生长和果实表型性状进行调查和统计分析,研究结果表明:单株间产量变幅为2.59~26.75 kg,果实百粒重变幅为20.13~63.92 g,初选25个单株生长性状和果实表型性状差异均达到显著水平。单株生长性状和果实表型性状相关性分析结果表明:果序重与果柄粗度有显著正相关;树高、胸径和冠幅之间存在极显著正相关;枝盘轮数和总的枝条数之间存在极显著正相关;单株产量与果序长、果序重和每串果序果实净重之间存在显著正相关。山桐子人工林单株间生长和结实性状差异显著,选择潜力大。Idesia polycarpa(IP) is an excellent native woody oil tree species in Sichuan. In order to provide scientific basis for the selection of superior family and fine clone in plantations in the future, studies were made of growth and fruit characteristics of Idesia polycarpa seed plantations. In this paper, the growth and fruit phenotypic characteristics of 5-year-old plantation in hilly areas of central Sichuan were investigated and statistically analyzed. The results showed that(1) the yield per plant varied from 2.59 kg to 26.75 kg, and the 100-grain weight of the fruit varied from 20.13 g to 63.92 g;(2) there were significant differences in growth traits and fruit phenotypic traits of the 25 primary selected plants. The results of correlation analysis between plant growth traits and fruit phenotypic traits showed that(a) there was a significant positive correlation among fruit sequence weight and fruit stalk thickness;(b) there was very significant positive correlation among tree height, DBH and crown width;(c) there was very significant positive correlation between the number of branches and the total number of branches;(d) there was significant positive correlation among the yield per plant and fruit inflorescence length, fruit inflorescence weight and net weight of each fruit inflorescence. In conclusion, there were significant differences in growth traits and fruiting characteristics between individual plants of Idesia polycarpa plantation, thus having great selection potential.

关 键 词：山桐子 生长性状 果实性状 

分 类 号：S792.99[农业科学—林木遗传育种]