A rapid laboratory method for cytological control in polyploidy breeding

Euphytica ◽  
1955 ◽  
Vol 4 (2) ◽  
pp. 163-166 ◽  
Author(s):  
G. J. Speckmann
Keyword(s):  
Laboratory Method ◽  
Rapid Laboratory ◽  
Polyploidy Breeding

scholarly journals Refinement of a Quantitative Method for Determining the Lime Requirements of Soils

1969 ◽  
Vol 39 (1) ◽  
pp. 41-45
Author(s):  
Fernando Abruña ◽  
José Vicente
Keyword(s):  
Field Experiment ◽  
Calcium Hydroxide ◽  
Quantitative Method ◽  
Laboratory Method ◽  
Hydroxide Solution ◽  
Ph Values ◽  
Direct Titration ◽  
Time Required ◽  
Rapid Laboratory

In determining the lime requirement of kaolinitic soils by direct titration with a calcium hydroxide solution it was found that boiling for 5 minutes reduced the time required for the attainment of equilibrium between the soil and the solution from over 100 hours to 1 hour. The variation in the pH values of the sons at equilibrium with the two methods were in all cases less than 0.1 unit. A precise, rapid laboratory method based on 5-minute boiling is described for determining the lime requirement of these soils. Results of a field experiment are shown to demonstrate the accuracy of the method.

A Rapid Laboratory Method of Assessing Susceptibility of Hevea Clones to Oidium Heveae

1973 ◽  
Vol 9 (3) ◽  
pp. 275-279 ◽  
Author(s):  
T. M. Lim
Keyword(s):  
Laboratory Method ◽  
Systematic Method ◽  
Field Methods ◽  
Detached Leaf ◽  
Rapid Laboratory

SUMMARYA detached-leaf technique is described for assessing susceptibility of Hevea clones to Oidium heveae, based on intensity of sporulation. This offers a rapid, systematic method of screening clones in vitro against the disease, in place of the current nursery and field methods.

scholarly journals Rapid laboratory method for the detection of chlorine in water

2004 ◽  
Vol 58 (3) ◽  
pp. 114-117 ◽  
Author(s):  
Jasmina Savic ◽  
Slobodanka Simic ◽  
Nikola Vukelic
Keyword(s):  
Detection Limit ◽  
Response Time ◽  
Laboratory Method ◽  
Amperometric Sensor ◽  
Dialysis Membrane ◽  
Laboratory Conditions ◽  
Sensor Sensitivity ◽  
Platinum Cathode ◽  
Rapid Laboratory

The possibility of chlorine detection in water by using of amperometric sensor with dialysis membrane was investigated. The sensor consists of platinum cathode and silver anode, which were immersed in electrolyte whose pH was controlled. The calibration diagrams were constructed for different electrolytes and polarization potentials. The detection limit of 0.1 mg/dm3 was obtained, middle value of sensor sensitivity was approximatelly 14 nA/mgdm'3 and response time was less than 1 s for designed amperometric sensor in laboratory conditions.

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