Population growth statistics Formula Calculated values Net reproductive rate Ro=∑lxmx 786.8426 Mean length of generation Tc=∑xlxmx/Ro 43.48817 days Innate capacity for increase in numbers 0.1534 Females/female/day Arbitrarily 'rm' (rc) 0.15 and 0.16   Corrected 'rm' ∑e7-rmx.lxmx 0.1542 Females/female/day Corrected generation time 43.25 days Finite rate of increase in numbers λ = antilog erm 1.1667 Females/female/day Weekly multiplication of population (λ)7 2.9425 Hypothetical F2 females (Ro)2 619121.3

Table 3: Mean length of generation, innate capacity for increase in numbers and finite rate of increase in numbers of Spodopteralituraon tobacco cv. Anand-119.