搜索结果: 1-15 共查到“农学 penetration”相关记录20条 . 查询时间(0.158 秒)
Results of dynamic penetration test – an indicator of the compaction of surface soil horizons by forestry machinery
dynamic penetration test soil compaction soil mechanics lightweight dynamic penetrometer
2015/3/27
The objective of research was, on the basis of the exactly predefined input parameters of upper soil horizons of selected forest soils, to perform accurate measurements of the impact of soil loading b...
Effect of surfactants and liquid fertilisers on transcuticular penetration f fungicides
fungicides surfactants liquid fertilisers cuticle
2015/3/1
Penetration of active compounds into the leaves plays an important role in their systemic activity. The effect of surfactants and liquid fertilisers on the penetration of fungicides was studied in mod...
Polygenic Resistance In The Highly DDT-resistant 91-R Strain Of Drosophila Melanogaster Involves Decreased Penetration, Increased Metabolism And Direct Excretion Of DDT
Resistance Metabolism P-glycoprotein
2014/10/21
Resistance to dichlorodiphenyltrichloroethane (DDT) in the 91-R strain of Drosophila melanogaster is extremely high compared to the susceptible Canton-S strain (>1500 times). Oxidative detoxification ...
Time-dependent changes in distribution patterns of soil bulk density and penetration resistance in a rangeland under overgrazing
Bulk density overgrazing penetration resistance
2011/6/29
High soil bulk density and penetration resistance as an indication of soil compaction affect soil infiltration and runoff.
Effect of the Addition of β-Hydroxybutyrate to Chemically Defined Maturation Medium on the Nuclear Maturation, Sperm Penetration and Embryonic Development of Porcine Oocytes In vitro
Porcine oocytes β-Hydroxybutyrate Nuclear Maturation Embryonic Development
2016/5/5
We investigated the effects of various concentrations of β-hydroxybutyrate (BHB, 0, 0.1, 1 and 10 mM), a ketone body, added to chemically-defined maturation medium with or without energy substrates (g...
Time-dependent changes in distribution patterns of soil bulk density and penetration resistance in a rangeland under overgrazing
Bulk density overgrazing penetration resistance rangeland soil compaction spatial variability
2011/3/29
High soil bulk density and penetration resistance as an indication of soil compaction affect soil infiltration and
runoff. Overgrazed rangelands are under severe erosion risk because of soil compacti...
Solar Radiation Penetration and Distribution in Soybean Communities
Canopy structure Integrated solarimeter film Penetrated radiation Radiation distribution
2009/7/30
Detailed features of solar radiation distribution and penetration in soybean communities were examined using integrated solarimeter films for 2 days. Five cultivars (c.v. Tsurukogane, Nanbushirome, En...
Effects of Diethylstilbestrol Administration on Sperm Penetration into the Inner Perivitelline Layer of Japanese Quail,Coturnix japonica
diethylstilbestrol inner perivitelline layer quail sperm penetration
2009/7/30
The aim of this study was to examine the effects of diethylstilbestrol (DES) administration on sperm penetration into the inner perivitelline layer (IPL) of ovum, and the interaction between sperm and...
Relationship between Deep Root Distribution and Root Penetration Capacity Estimated by Pot Experiments with a Paraffin and Vaseline Layer for Landraces and Recent Cultivars of Wheat
Compacted soil Deep rooting Genotypic difference Hard soil Root penetration Soil compaction Triticum aestivum Triticum turgidum
2009/7/23
Root growth into deep soil is an important factor for stable production in wheat under drought conditions. Root penetrating capacity (RP) shown by pot experiments with a paraffin-Vaseline layer (PV la...
Dynamics of Root Border Cells in Rhizosphere Soil of Zea mays L.:Crushed Cells during Root Penetration, Survival in Soil,and Long Term Soil Compaction Effect
Detached cells Maize Rhizosphere Root cap Sloughed root cap cells Soil compaction Soil mechanical impedance
2009/7/23
Plant roots release mucilage and root border cells (RBCs) into rhizosphere, which function as a complex at the root-soil interface. The dynamics of RBCs in rhizosphere soil, however, remains unknown. ...
Specific Difference in Root Penetration into the Compacted Soil Cakes in Crop Plants
Main root Root penetration Seminal root Soil cake Soil hardness Tap root
2009/7/21
Artificially compacted soil cakes were used to examine the penetration of seminal roots in cereal and tap roots in leguminous crops.Using an oil pressure pump, compacted soil cakes 1 cm in thickness w...
Host Penetration and Infection by the Anastomosis Groups of Rhizoctonia solaniKühn Isolated from Potatoes
Host Penetration Infection Anastomosis Groups of Rhizoctonia solaniKühn Potatoes
2009/1/23
The modes of penetration and infection of the isolates belonging various anastomosis groups (AG-2 type 1, AG-2 type 2, AG-3, AG-4 and Ag-5) of Rhizoctonia solani Kühn isolated from potatoes were inves...
The Effect of Water Content on the Penetration Resistance of Different Soils, and Regression Models
Water Content Penetration Resistance Different Soils Regression Models
2009/1/16
The purposes of this study were to determine the relationships between soil water content and soil penetration resistance, and to develop regression models for comparing penetration resistance in dif...
The Relationships Between Penetration Resistance and Certain Soil Properties
Penetration Resistance Certain Soil Properties
2009/1/16
The purpose of this study was to determine the relationships between penetration resistance and certain soil properties, and to develop regression equations based on these relationships for predicting...
Effect of organic carbon content on the compactibility and penetration resistance of two soils formed from loess
soil compactibility Corg. content penetration resistance bulk density
2008/11/21
Penetration resistance and bulk density were measured in the laboratory for two soils: grey-brown and brown, both formed from loess with different Corg. content which had been compacted using the Proc...