Table 5 Prey-mediated effects of Cry1C on life-table parameters of C. lividipennis preying nymphs of N. lugens reared with Bt rice (T1C-19) or non-Bt (Minghui 63) rice plants.

Parameters	Rice line
Parameters	T1C-19	Minghui 63
2nd instar developmental time (days ± SE)^a)	1.9 ± 0.03 (50)	1.9 ± 0.03 (50)
3rd instar developmental time (days ± SE)^a)	2.1 ± 0.06 (44)	2.0 ± 0.03 (44)
4th instar developmental time (days ± SE)^a)	2.5 ± 0.07 (41)	2.4 ± 0.03 (41)
5th instar developmental time (days ± SE)^a)	2.9 ± 0.12 (35)	2.8 ± 0.08 (38)
2nd instar-adult developmental time (days ± SE)^a)	9.4 ± 0.19 (35)	9.1 ± 0.10 (38)
Preimaginal survival (%)^b)	70	76
Female ratio (%)^b)	45.7	42.1
Male weight (mg ± SE)^c)	0.34 ± 0.05	0.31 ± 0.01
Female weight (mg ± SE)^c)	0.48 ± 0.01	0.45 ± 0.05

Note: (1) The experiment started with 50 nymphs per treatment. (n), number of individuals at each development stage. (2) Within a row, statistical comparisons were made for Bt rice with non-Bt rice. ^a)Mann–Whitney U-test. ^b)Chi-square test. ^c)Student’s t-test.

Quick links

Search