Correlation between the larval period of silkworm bombxy mori l. and egg production

In this work a correlation between the duration of larval period and signs of eggs laying of 6 races and 4 selectional lines of silkworm was studied. Races and lines were divided into gradations according to the speed of development and a comparative evaluation of indexes in gradations was made. According to the analysis of obtained results a negative correlation between the speed of larval period and reproductive characteristics was defined.

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