CAJ | 학술논문

对河南郏县侧柏全分布区种源试验林66个种源19年生植株的性状分析表明,主干生长、冠幅、分枝角和树形指标在种源问差异显著,主干生长、冠幅、分枝角的种源遗传率均达到0.6以上.种源各调查指标与经度、纬度和海拔无明显相关,呈随机地理变异特点,表现与苗期性状不同的地理变异.主成分分析表明主干生长、树冠和形质指标对侧柏种源性状变异的影响较大.按主干生长和树冠可把供试种源聚为4个类群,但类群内无明显地理集群特点.
대하남겹현측백전분포구충원시험림66개충원19년생식주적성상분석표명,주간생장、관폭、분지각화수형지표재충원문차이현저,주간생장、관폭、분지각적충원유전솔균체도0.6이상.충원각조사지표여경도、위도화해발무명현상관,정수궤지리변이특점,표현여묘기성상불동적지리변이.주성분분석표명주간생장、수관화형질지표대측백충원성상변이적영향교대.안주간생장화수관가파공시충원취위4개류군,단류군내무명현지리집군특점.
Based on a wide range provenance trial with 66 seed sources,located in distribution area of the species,in Jiaxian county,Henan province,China,nine plant traits were analysed.Results showed that significant differences were found in many traits between provenances,especially in stem height,ground diameter,crown,branching angle and tree form index (tree height against the broadest crown height).The general estimated provenance heritabilities of the traits listed before were over 0.6.There were no significant coUelation found between the plant traits and the geographical locations of seed source,including latitude,longitude and altitude.Random geographic distribution for elder plant traits among the tested provenances was suggested.The variations among provenances in P.ori-entalis were mainly determined by main trunk growth,crown and tree form by principal component analysis.Tested seed sources could be divided into 4 zones,according to main trunk growth and crown.There were no obviously geographic cluster trend in each zone among seed sources.