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National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
The influence of photoperiod on the egg production of phasmid \kur{Peruphasma schultei}.
 TOCHOROVÁ, Pavla
The aim is to determine the importance of photoperiod for oviposition of Peruphasma schultei. The theoretical part covers common description of the reproduction and embryonic development of phasmid. Included the climatic factors affecting physiological action and brief description of the biological clock of insects. Experimental individuals were are kept in three different photoperiods with constant temperature of 25 °C. Control and collection of eggs ran at intervals of two hours. It was shown the influence of photoperiod, time and their interaction on the number of eggs and imposed the difference in putting across time.
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The photoperiodicity effect on the selected phasmid species egg growth
 TOCHOROVÁ, Pavla
The object of the thesis is to discover the importance of photoperiodicity in the Ramulus artemis and Peruphasma schultei growing process. These species differ in the area of presence, anti-predator behavior and the reproduction method. Their eggs were incubated at a constant temperature divided into four photoperiods. Incubation time, hatching success and the daytime of hatching were precisely documented. The photoperiodicity effect on both selected species has been evidenced by statistical data evaluation. The theoretical part deals with a general description of the reference order of phasmatodea (Phasmatodea) focusing on its reproduction and growth. Then appoints the climatic factors influencing the physiological processes in the insect body.
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