The Impact of Variation in Foliar Constituents of Sunflower on Development and Reproduction of Diacrisia casignetum Kollar (Lepidoptera: Arctiidae)

Table 3

Food utilization efficiency measures of second instar larva of D. casignetum reared on young, mature, and senescent sunflower leaves.

Parameter	Young	Mature	Senescent	F 2,12	P
GR (mg/day)	0.43±0.00^a	0.48±0.02^b	0.38±0.01^c	10.282	0.01
CR (mg/day)	29.74±0.05	29.31±0.73	28.59±0.08	1.849	n.s.
RGR (mg/day)	0.43±0.00^a	0.36±0.10^b	0.45±0.02^a	8.391	0.01
CI (mg/day)	30.04±0.30^a	22.41±0.53^b	29.79±0.44^a	98.241	0.0001
AD (%)	84.94±0.24^a	84.53±0.47^a	82.88±0.10^b	11.966	0.01
ECI (%)	1.44±0.01^a	1.67±0.01^b	1.50±0.04^a	14.521	0.001
ECD (%)	1.70±0.02^a	1.97±0.01^b	1.81±0.05^c	11.760	0.01
LS (%)	88.72±1.45^a	91.62±0.42^b	83.55±0.79^c	9.064	0.01

Mean ± SE of five observations. Within the rows, means followed by different letters are significantly different. Food utilization efficiency measures: GR: growth rate, CR: consumption rate, RGR: relative growth rate, CI: consumption index, AD: approximate digestibility, ECI: efficiency of conversion of ingested food, ECD: efficiency of conversion of digested food, LS: larval survivability.