华北落叶松种子园高产与低产无性系测定效果初报  

Test of High-yielding and Low-yielding Clones of Larix principis-rupprechtii Seed Orchard

作　　者：袁德水[1] YUAN De-shui(Mulanweichang National Forestry Administration of Hebei Province , Weichang,Hebei 068450,Chin)

机构地区：[1]河北省木兰围场国有林场管理局,河北围场068450

出　　处：《河北林业科技》2016年第6期25-27,共3页Journal of Hebei Forestry Science and Technology

基　　金：林木遗传育种国家重点实验室(东北林业大学)开发基金(K2015202);林业公益性行业科研专项经费项目(201004021)

摘　　要：通过对华北落叶松种子园多年的调查,分别筛选出10个高产无性系和10个低产无性系,并初步测定了高产无性系与低产无性系的种子产量、品质、苗期生长表现。结果表明:高产无性系单株种子产量为0.17kg,显著高于低产无性系(0.016kg),但两类无性系在种子品质和苗期生长表现均无显著差异。说明高产无性系虽然产量高,消耗的营养多,但并不影响种子的优良品质,如在分类经营的情况下,可为种子园疏伐和进一步改良提供理论依据。Ten high-yielding and 10 low-yielding clones were selected respectively from Larix principis-rupprechtii seed orchard in Weichang.Then seed yield,seed quality（seed plumpness,germination rate）and growth traits（seedling height,basal diameter）of these high-yielding and low-yielding clones were measured.Results showed that high-yielding clone performed excellent in aspect of individual seed yield（0.17kg）,which was significant higher than low-yielding clone（0.016kg）.No significant differences were found between high-yielding and low-yielding clones in seed quality and growth traits.High-yielding clones consume more nutrition to produce high seed yield,but seed quality was not bad.This could be used to seed orchard thinning and provides the theory basis for further improvement under the condition of classified management.

关 键 词：华北落叶松 种子园 无性系 种子产量 分类经营 

分 类 号：S791.22[农业科学—林木遗传育种]