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林木生长相关
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  tree growth interrelationship
     Tree Growth Interrelationship :A Subject in Great De'nand in 21st Century
     21世纪:林木生长相关将成为热门学科
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  相似匹配句对
     Tree Growth Interrelationship :A Subject in Great De'nand in 21st Century
     21世纪:林木生长相关将成为热门学科
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     Correlation Analysis Between Meteorological Factors and Diameter Increment of Korean Pine In Flantations
     红松人工林林木直径生长与气象因子的相关分析
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     Tree Form Factor Growth Regularity
     林木主干形质生长
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     Models for Projecting Stand and Tree Growth
     林分和林木生长预测模型
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     Oprelvekin- associated bilateral optic disk e- dema
     血小板生长因子相关的双眼视乳头水肿
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Genetic parameters of growth characteristics of hybrid clones of F_1Population seedlings of hybridization such as Poputus deltoides cv.‘Lux’ ×Populus cathayana,P.cleltoides cv.‘Lux’×P.pseudo-simonii,and P.deltoides cv. ‘Lux’×P.deltoides were estimated.It was considered that selecting F_1 clones on the basis of phenotype values in seedling growth was feasible.In accor- dance with corretation analysis results in the growth of from 1 to 7 year-old experimental trees.It was propused that the time of 7 years old...

Genetic parameters of growth characteristics of hybrid clones of F_1Population seedlings of hybridization such as Poputus deltoides cv.‘Lux’ ×Populus cathayana,P.cleltoides cv.‘Lux’×P.pseudo-simonii,and P.deltoides cv. ‘Lux’×P.deltoides were estimated.It was considered that selecting F_1 clones on the basis of phenotype values in seedling growth was feasible.In accor- dance with corretation analysis results in the growth of from 1 to 7 year-old experimental trees.It was propused that the time of 7 years old should be reasonable time for selecting good clones.Through determation and analyses of the growth characteristics of the hybrid clones,two clones:(P.deltoides cv.‘Lux’×P deltoides)-52 and[P.deltoides cv.‘Lux’×P.cathayana(from Cha- ng-an county,Shaanxi)]-1062 were selected out,and their genetic gains after selecting were 20.23% and 101.15% respectively.

本文估算了Ⅰ—69杨×青杨、Ⅰ—69杨×小青杨、Ⅰ—69杨×美洲黑杨的 F_1群体苗木生长性状的遗传参数,认为依据苗木生长的表型值进行 F_1无性系选择是可行的。由1~7年生林木生长相关分析结果,提出7年生时是选择优良无性系的合理时机。通过杂种无性系生长特性的测定与分析,选出两个优良无性系——Ⅰ—69杨×美洲黑杨52号和Ⅰ—69杨×青杨(长安)1062号,选择后的遗传增益分别为20.23%、101.15%。

Abstract in recent 10 years, especially the past 5 years, great progress in the researchon the tree growth interrelationship has been made in China which involves over 239 treespecies, in which there are 54 conifers species, 142 broadleaved species, 43 economictree species and fruit tree species- The current research situation and development trendof tree growth interrelationship at home and abroad is analyzed.

简要分析了林木生长相关的国内外研究现状及发展趋势。论述了林木生长相关学的基本框架及培育新学科的战略意义。

 
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