1) dominant species
优型树
2) Elite nut tree
坚果型优树
3) plus tree
优树
1.
Study on selection of plus tree from superior provenances and families of Fokienia hodginsii;
福建柏优良种源和家系优树选择研究
2.
Selection and genetic variations of traits among plus trees of Betula luminifera;
光皮桦优树子代性状遗传变异及选择
3.
Study on plus tree selection criteria and methods of Quercus variabilis Bl.;
栓皮栎优树选择标准和方法的初步研究
4) plus-tree
优树
1.
Study on the 5-year-old progeny testing and early selection of plus-trees of Fokienia hodginsii;
5年生福建柏优树子代测定林分析与选择
2.
Based on the investigation of resources of Fokienia hodginsii,the plus-tree selection standard and method were made.
在调查研究福建柏资源基础上,制定了福建柏优树选择方法,于1998年6～11月和1999年7～11月在福建省福建柏自然分布区和栽培区以及湖南省道县福建柏天然林中选择出优树175株,其中从天然林中选出57株,从人工林中选出118株。
5) superior tree
优树
1.
Taking the methods of 5 dominant tree comparison and mean tree comparison,66 superior trees and 330 dominant trees of Castanopsis fissa were selected out from the natural secondary stand in 7 counties of Guangxi,Guangdong,Fujian and Hunan province.
采用5株优势木和平均木对比法,在广西、广东、福建、湖南4省(区)7个县的大叶栎天然次生林中,共初选出大叶栎优树66株,优势木330株。
2.
14 superior trees that produce high-rosin and high-wood had been selected form Pinus elliottii mother trees, the results showed that volume and lipid quantity were 20% and 200% of ordinary Pinus elliottii respectively, this all offered a good foundation for.
7hm230多年生湿地松母树林为研究对象,经过连续几年的观测和调查,采用普选法,以材积和产脂量双指标控制,选择出了14株高产脂、高产材优树,其材积比一般湿地松大20%,产脂量高200%,为湿地松优良品系改良与推广打下了基础。
3.
In order to ensure qualities of superior tree selection and seed orchard establishment,dominant comparative(method) was applied widely in superior tree selection.
本文通过具体实例分析了用优势木对比法选取优树时应注意的问题,保证了优树的质量和种子园的建设。
6) elite tree
优树
1.
Review of elite tree selection techniques for main conifers in China;
国内主要针叶树种优树选择技术研究进展
2.
The elite tree selection of Liquidambar formosana in Guizhou Province
贵州省枫香优树选择研究
3.
Selective preference of Sophora japonica for ornamental tree in Liaocheng gardens by increment,quality index and resistance,acceptance showed that the increment of candidate elite tree was over 60% by small sample plot method,and was over 30% by 5 big tree method.
按生长量指标、形质指标、抗性及适应性要求等优树选择标准对国槐进行了优树选择,结果表明:侯选优树按小样地法选择,生长量指标都超过了60%以上,按5株大树法选择,也都超过了30%以上。
补充资料：黎卡提方程(见线性二次型量优控制)
黎卡提方程(见线性二次型量优控制)
Riccati equation
L袱以}tongcheng黎卡提方程(Rieeati equation)次型最优控制。见线性二
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条