Life Table of Spodoptera exigua (Lepidoptera: Noctuidae) on Five Soybean Cultivars

Table 3

The population growth parameters (Mean ± SEM) of the beet armyworm Spodoptera exigua on five soybean cultivars.

Parameters			Soybean cultivars
	JK	Sahar	L17	Williams	BP
Net reproductive rate (𝑅𝑜)	59.0±6.4^b	44.4±6.2^b	42.0±3.6^b	137.0±11.2^a	41.3±4.1^b
Intrinsic rate of increase (𝑟𝑚)	0.137±0.004^ab	0.132±0.006^bc	0.117±0.003^c	0.168±0.004^a	0.122±0.004^c
Finite rate of increase (𝜆)	1.15±0.005^b	1.14±0.006^bc	1.12±0.003^d	1.18±0.005^a	1.13±0.004^cd
Doubling time (DT)	5.0±0.2^a	5.2±0.2^a	5.9±0.1^a	4.1±0.1^a	5.7±0.2^a
Mean generation time (T)	29.7±0.5^bc	28.8±0.3^c	32.0±0.3^a	29.3±0.3^bc	30.4±0.4^b

Means followed by the same letters in a row are not significantly different (P < 0.01).