Abstract
Characteristics of crowded (mainly alate) and isolated(apterous) populations of the pea aphid Acyrthosiphon pisum were compared. The total developmental time in alatae was longer than that in apteres, the difference due to the extended fourth instar in the former. There was no signifiacant difference in larval body weight between isolated and crowded insects in the first 3 instars, whereas the apterous fourth instar larvae and adults were heavier than the alate ones. Apterous parents produced a larger number of larvae than alate parents. No significant difference in total free sugar content was observed between isolated and crowded aphids. Crude glycogen content, however, decreased significantly near the time of adult emergence, especially in alatae. This may be due to glycogen utilization in wing development.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
