Reference Report for SoyBase72903303
| Title: | Nymphal development, lipid content, growth and weight gain of Nezara viridula (L.) (Heteroptera: Pentatomidae) fed on soybean genotypes |
| Authors: | Piubelli, G.C., Hoffmann-Campo, C.B., de Arruda, I.C., Lara, F.M. |
| Source: | Neotrop. Entomol. 2003, 32(1):127-132 |
| Abstract: | The effects of five soyabean (Glycine max) genotypes (BR-16, IAC-100, PI 227687, PI 229358 and PI 274454) on nymphal development, adult weight and lipid content of the stink bug, N. viridula, were evaluated in the laboratory. When fed on the pods of PI 227687 (resistant) and BR-16 (susceptible), nymph mortalities were, respectively, 66.2 and 27.5%. Second instar nymphs, maintained since hatching in Petri dishes containing PI 274454 and BR-16 pods, weighed 1.1 and 1.0 mg, respectively; they were heavier than those fed with PI 227687 (0.7 mg) and IAC-100 (0.7 mg) pods. Adult fresh weights were 146.9, 127.0 and 125.5 mg when fed on BR-16, PI 227687 and IAC-100, respectively. The later two genotypes also negatively affected stink bug weight gain. Females accumulated less lipid when fed on IAC-100 (4.8 mg) and PI 227687 (4.3 mg) than those fed on the other genotypes. By their deleterious effects, PI 227687 was confirmed as an inadequate food to N. viridula and as the most promising genotype for use in soyabean breeding programmes as a source of resistance to stink bug. |
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