鲁甸县核桃种质资源表型多样性调查初报  

Preliminary investigation report on phenotypic diversity of walnut germplasm resources in Ludian County

作　　者：刘娇[1] 范志远[1] 赵廷松[1] 曾清贤 杨建华 潘莉[1] 张顺芬 李淑芳 陈静 李鹏 黄勇 

机构地区：[1]云南省林业科学院,云南昆明650204 [2]鲁甸县林业局,云南鲁甸657100 [3]云南省林科院漾濞核桃研究院,云南漾濞672500

出　　处：《河北林果研究》2014年第4期376-379,共4页Hebei Journal of Forestry and Orchard Research

基　　金：云南省重点新产品开发计划项目"云南抗寒核桃与短低温薄壳山核桃新品种选育"(2009BB002)

摘　　要：通过调查鲁甸核桃604株成年结果树的物候特征、植物学特性、坚果的经济性状及丰产性得出：鲁甸县核桃种质资源萌芽期为2月上旬至4月上旬，集中期为2月下旬到3月中旬，雌雄花开放期集中在3月中下旬至4月上旬，果实成熟期集中在9月至10月；植物学上，在叶形、枝条颜色、雌花柱头、子房颜色、雄花序长度、青果性状等方面存在多样性；鲁甸核桃每果枝坐果数为1～7，还有串串核桃的存在，丰产性好；在树形方面，表现为自然圆头形、自然开心形、自然分层形、自然圆锥形的多样性，核桃坚果的三径均值、出仁率、仁重、单果重、壳厚的变异系数分别为9．48％、13．46％、24．05％、25．46％、25．74％，多样性较丰富。The investigation and research on walnut germplasm resources was carried out in northest Yunnan .The results show that walnut budding period is from early February to early April ,concentrating period is in late February to mid March ,male and female flower‐ing period concentrates in the mid to late march to early April ,and fruit mature period is from September to October .There is diversity in leaf ,branch ,ovary ,stigma color ,male in‐florescence length ,and fruit traits .Ludian walnut fruit number per fruit branch is 1 -7 fruits ,with strings of walnuts ,and the good yield .Ludian walnut tree possesses natural round shap ,natural open centre shape ,natural hierarchical shape ,and natural conical shap , The nut characters indicate the average nut tridiameter ,kernel rate ,nut weight ,single fruit mass ,and Shell thickness ,are 9 .48% ,13 .46% ,24 .05% ,25 .46% and 25 .74% of variation coefficient ,respectively ,showing abundant diversities .

关 键 词：核桃 种质资源 表型性状 多样性 坚果性状 

分 类 号：S324[农业科学—作物遗传育种]