密度效应

作物密度效应递增律及其意义

The law of increasing density effect of crop and its significance

马尾松种群生物量及其密度效应研究

Studies on Biomass and Density Effect in the Pinus Massoniana lamb

云南松（pinusyunnanensis）林林分结构和生长规律的初步研究马尾松林杆材阶段生物产量和径级分化及密度效应初探

A Primary Study on the Structure of the Forest Stands of Forest of Pinus yunnanensis and the Regular Pattern of Its Development PRELIMINARY DISCUSSION ON BIOMASS , TIMBER DIFFERENTIATION AND DENSITY EFFECT OF MASSON , S PINE POLE STANDS

调查了岷江上游20a龄油松人工林样方17个（20m×20m），测定了油松生长参数、林下植被的植物物种多样性和盖度，以分析油松生长和群落结构变化的密度效应。

Seventeen plots ( 20 m × 20 m ) of 20-year-old Chinese pine ( Pinus tabulaeformis ) plantations were investigated for tree growth parameters , plant species diversity , and coverage of shrub and herbaceous layers in the upper reaches of the Min River in southwestern China .

在75L搅拌罐中培养细胞，利用外部周期性压力振荡刺激并结合载体更新技术，可减轻密度效应对细胞生长和表达的影响，在一定程度上提高细胞在高密度培养条件下的表达水平。

In order to reduce the effect of cell density on cell growth and expression , a cyclic pressure oscillation was exerted on a 7.5L reactor headspace to enhance cell expression at high cell density to a certain extent .

马尾松胶合板用材林生长的密度效应

Study On Density Effects of Forest Growth for Masson Pine Plywood

苹果全爪螨实验种群的密度效应研究

Study on Density-Dependent Effects of the Experimental Population of Panonychus ulmi

系统研究了花椒全爪螨实验种群的密度效应。

Analysis of density effect of young plantation of Quercus mongolica ;

巨桉纸浆原料林造林密度效应研究

Study on Planting Density Effects for Eucalyptus Grandis Pulp Forest

小麦花药培养中的密度效应研究

Study on the effect of density of wheat anther culture

黑杨派南方型杨树密度效应规律的研究

A study on the density effect law of the southern type poplars

渗水地膜技术研究地膜油葵的生长规律与密度效应的研究

Study on the Growth Rhythm and Density Efficiency of Oil-sunflower Mulching Film

马尾松林分生物量的密度效应探讨

Probe into the Density Effect of the Stand Biomass of Pinus massoniana

实验结果表明二斑叶螨卵期不存在密度效应；

There was no density dependent effect in egg period .

冬小麦主要性状的密度效应分析

Effect of Basic Seedling on Winter Wheat for Main Characters

材用毛竹丰产林密度效应模型研究

Study on the Model of Density Effect for Bamboo High-yield Timber F

同龄纯林密度效应新模型的研究

The Study On The New Model Of Even-Aged Pure Forest Density Effect

毛环竹高产林分密度效应研究

Study on Density Effect Model for High Yield Stand of Phyllostachys meyeri

林分价值的密度效应模型及其应用

A Model of the Density Effect of Stand Value and it 's Application

杉木林分密度效应研究

Studies on the Density Effects of Chinese Fir Stands

工业废水排放量变化的密度效应和增长效应

Density effect and increase effect of variation of discharge amount of industrial wastewater

天然杨桦林营养元素归还量与密度效应

The relation of nutrient return revert and density effect of nature poplar and birch

辽西地区山杏林分栽植密度效应的分析

Analysis of Density Effect of Armeniaca sibirica Forests in Western Region of Liaoning Province

基于图像处理的玉米分形维数及其种植密度效应评价

Effects of Plant Population Density on Fractal Dimension of Corn Based on Image Processing

松质骨源性人成骨细胞的分离培养和细胞密度效应

Isolation and culture of human osteoblast from trabecular bone and the cell density effect

石竹密度效应研究

Study on Density Effect of Phyllostachys nuda

天然黄山松林密度效应规律

Density effects of natural Pinus taiwanensis forest

地膜穴播冬小麦播期、密度效应

A Study on Effects of Sowing Time and Density on Film-mulched and Bunch-Seeded Winter Wheat

春玉米叶面积系数动态特征的密度效应

Effect of Plant Density on Dynamic Characteristics of Leaf Area Index in Development of Spring Maize

闽北马尾松人工林密度效应蓄积量改进模型

A modified model of volume for stand density effect of Pinus massoniana plantation in Northern Fujian