Effect of temperature on body size,growth and reproduction of Acyrthosiphon pisum
[Objective]The study aimed to clarify the effect of different temperature on the body size,growth and reproduction of Acyrthosiphon pisum and their relationships.[Method]The indexes of body size,development and reproductive of A.pisum,which were raised in vitro leaves under different tempera-ture conditions(i.e.,15,20,25℃),were recorded and determined.[Result]The results showed that with the increase of temperature,the body size of A.pisum gradually decreased,and the surface area per unit body weight increased gradually;The developmental duration and longevity were shortened gradually,and the average daily fecundity per female increased first and then decreased.Under low temperature(15℃),the A.pisum were the longest both in the body length(4.10 mm)and in hind food tibia length(3.07 mm),the largest in the surface area(4.74 mm2),and the heaviest in the body weight(3.11 mg).The developmental duration(12.44 d)and adult longevity(43 d)of A.pisum were the longest,and the average fecundity of per female(75.45)was the least.[Conclusion]It was suggested that the temperature had a significant effect on the body size,growth and reproduction of A.pisum.