Bacterial quantity and component changes around rhizosphere of common dayflower ( Commelina communis) were comparatively studied which were cultured under eutrophic water of different degree using mono-carbon source media by means of ERIC-PCR methods.

The biology of dayflower, including dormancy characteristic, emergence law, root-regeneration ability of the whole plant and branch in different soil moisture, were studied.

探讨了鸭跖草的休眠特性和田间发生规律以及不同土壤含水量下植株地上部和分枝的再次生根能力，为科学、有效地防治鸭跖草提供生物学理论依据。

Greenhouse experiments were conducted to evaluate the action of combinations of bromoxynil and 2,4-D butyl ester in controlling dayflower.

在温室盆栽条件下，采用等效线法评价辛酰溴苯腈与2,4-D丁酯混用后的联合作用类型。

With rapid increase of the tolerance to imazethapyr, the key period of spraying dayflower was as early as3-leaf stage.

由于3叶期开始鸭跖草耐药性迅速增强，因此，3叶以前是鸭跖草施药的最佳时期。

The effects of different soil water content, depth of sowing and dose of fomesafen on dayflower emergence were studied.

通过提供不同外界环境条件的方法，研究了土壤含水量、播种深度及除草剂虎威对鸭跖草出苗的影响。

The test had studied the proper time and method of controlling dayflower.

本试验讨论了鸭跖草防除的时期和方法。

Both butterflies and hawkmothes are effective pollinators of two varieties, but strong differentiation in butterfly and hawkmoth species occurred to two varieties.

蝴蝶和天蛾都是2个变种的有效传粉者，它们对2个变种具有同等的传粉效率，但2个变种在传粉者的种类上产生了强烈的分化。

Large green white-striped hawkmoth larva that feeds on tomato and potato plants; similar to tobacco hornworm.

大型的绿色带白条的天蛾幼虫，吃番茄和马铃薯；类似于烟草天蛾幼虫。

Major pollinators include bees, hawkmoth, butterfly and birds, and different pollinators correspond with different morphological characteristics of flowers.

姜科植物重要的传粉动物包括各种蜂类、天蛾、蝴蝶、鸟类等，不同的传粉动物对应不同的花部特征。

European hawkmoth with markings on the back resembling a human skull. autographa california nuclear polyhedrosis virus

背部有类似死人头骨斑纹的欧洲天蛾。苜蓿银纹夜蛾核型多角体病毒

A gradient in the gravitational forces acting on different parts of a nonspherical object.

作用于非天体物体不同部分的引力梯度。

Preparation of Nonspherical Polymer Particles Based on Concentrated Emulsion Biphase Polymerization

浓乳液双相聚合方法制备异形聚合物粒子

Therefore, the magnetic contribution to the free energy may favor the nonspherical states.

考虑到磁场对自由能的贡献，非球形态可能能量更低。

A method for calculating the form scattering function of nonspherical particle

非球形颗粒形散函数的计算方法

Relation between Contents of Spermatozoan Surface Wheat Germ Agglutinin ( WGA) Receptor and Fertilization Rates of Metaphase ⅱ Oocytes in Vitro

精子膜麦芽凝集素受体含量与体外受精率的关系

Effects of Semen Cuscutae, Rhizoma Curculiginis, Radix Morindae Officinalis on Human Spermatozoan's Motility and Membrane Function in Vitro

菟丝子、仙茅、巴戟天对人精子体外运动和膜功能影响的研究

Study of the Population Dynamics of the Parasitic Fleas on Citellus undulatus Appling Fuzzy Cluster Analysis

应用模糊聚类分析考察长尾黄鼠体外寄生蚤的种群动态

Investigation about epidemic scope of the Citellus plague

关子黄鼠鼠疫流行范围的探索

The average accumulative infection rate of Citellus dauricus was 0.34%.

达乌里黄鼠的累计平均感染率0.34%。

Sampling study of population Citellus dauricus with four slopes

四种坡度的黄鼠密度抽样研究

The paper describes external factors which influence the population change of Citellus dauricus brandt.

影响黄鼠数量变动的外因有气象因子、生物因子、土壤因子和人的活动。