光皮梾木果实特征及产量  

Study on the Fruit Characteristics and Yield of Cornus wilsoniana

作　　者：王明怀[1] 林军 邓文剑 张应中[1] 张良波[3,4] 何祯祥[5] WANG Minghuai LIN Jun DENG Wenjian ZHANG Yingzhong ZHANG Liangbo HE Zhenxiang(Guangdong Provincial Key Laboratory of Silviculture, Protection and Utilization/Guangdong Academy of Forestry, Guangzhou, Guangdong 510520, China Lechang Longshan Forest Farm, Lechang, Guangdong 512221, China Hunan Academy of Forestry, Changsha, Hunan 410004, China Hunan Engineering Research Center of Biodiesel, Changsha, Hunan 410004, China School ofLife Sciences, Nanjing University, Nanjing,Jiangsu 210023, China)

机构地区：[1]广东省森林培育与保护利用重点实验室/广东省林业科学研究院,广东广州510520 [2]乐昌市龙山林场,广东乐昌512221 [3]湖南省林业科学院,湖南长沙410004 [4]湖南省生物柴油工程技术研究中心,湖南长沙410004 [5]南京大学生命科学学院,江苏南京210023

出　　处：《林业与环境科学》2017年第3期24-28,共5页Forestry and Environmental Science

基　　金：广东省省级科技计划项目"油料植物光皮树良种资源收集与无性系选育"(2014A020208033)

摘　　要：为充分了解光皮梾木(Cornus wilsoniana)果实特征、利用优树资源选育良种,对来自江西省和广东省的光皮梾木优树及扩繁无性系的果实性状、产量进行测定,结果表明:光皮梾木优树的鲜果、种子平均直径分别为6.08、4.54 mm,光皮梾木优树的鲜果、种子平均百粒重为14.3、5.56 g,光皮梾木优树无性系的鲜果、种子平均直径分别为5.81、4.32 mm;光皮梾木优树平均鲜果直径、种子直径、种子百粒重与扩繁无性系的平均鲜果直径、种子直径、种子百粒重间的相关系数分别为0.638、0.681、0.774,呈显著相关(P<0.05);优树无性系的果实直径、种子直径、种子百粒重复力分别为0.973 4、0.974 0、0.992 1;优树无性系的鲜果平均单株产量为620.0~2 636.7 g,初选的优良无性系JX3、JX2、JX12鲜果平均单株产量分别为2 661.4、2 637.7、2 320.0 g,比试验林全林均值1 723.5 g分别高54.4%、53.0%、34.6%;优树无性系的鲜果平均直径与鲜果平均单株产量相关系数为0.431,相关性不显著。The fruit characteristics and yield of the Comus wilsoniana excellent tree and the clone of the C. wilsoniana excellent tree from Jiangxi province and Guangdong province were studied. The results showed that for the C. wilsoniana excellent tree, the average fruit diameter and seed diameter were 6.08 and 4.54 mm; the average hundred-grain-weight of fresh fruit and seed were 143 and 5,56 g; the average Bruit diameter, seed diameter of the excellent tree clone for C. wilsoniana were 5.81, 4.32 mm; the repeatabilities of fruit diameter, seed diameter and hundred-seed-weight were 0.973 4、0.974 0、0.992 1. For the clone of excellent tree, the average yield of fresh fruit per plant was 620.0-2 636.7 g; the average yield per plant of JX3, JX2 and JX12 were 2 661.4, 2 637.7 and 2 320.0 g respectively, which were 54.4%, 53.0%, 34.6% higher than the yield of the whole forest. The correlation coefficients of fruit diameter, seed diameter and hundred-seed-weight between the excellent tree and the clone of excellent tree were 0.638, 0.681 and 0.774, which were significant or extreamly significant. The correlation coefficient between seed diameter and yield of the excellent tree clone was 0.431 and the correlation was not significant.

关 键 词：光皮梾木 优树 鲜果直径 种子直径 百粒重 单株产量 

分 类 号：S722[农业科学—林木遗传育种]