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

Table 5

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

Parameter	Young	Mature	Senescent	F 2,12	P
GR (mg/day)	6.13±0.01^a	6.69±0.29^b	5.69±0.01^c	6.069	0.05
CR (mg/day)	164.29±0.02^a	175.50±1.13^b	159.29±0.02^c	160.278	0.0001
RGR (mg/day)	0.40±0.00^a	0.34±0.03^b	0.41±0.00^a	158.179	0.0001
CI (mg/day)	10.84±0.01^a	8.97±0.08^b	11.23±0.00^c	549.641	0.0001
AD (%)	70.09±0.02^a	71.29±0.58^a	67.34±0.00^b	35.232	0.0001
ECI (%)	3.73±0.00	3.82±0.46	3.70±0.00	0.053	n.s.
ECD (%)	5.32±0.01	5.36±0.16	5.49±0.01	0.861	n.s.
LS (%)	92.74±2.24^a	92.95±0.08^a	85.85±2.48^b	4.356	0.05

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.