| Summary: | 碩士 === 國立嘉義大學 === 農藝學系研究所 === 105 === The purpose of this studies is to investigate the life cycle and life table parameters of (Aphis glycines Matsumura) (Hemiptera: Aphididae) when fed on ChiaDa Golden Beads, Kaohsiung Number Ten, Tainan Number three Black bean leaf. The data will provide farmers basic information for soybean cultivation. The data have indicated that the progeny were 6.58, 2.46 and 1.56 when fed on the above three soybean cultivars at 30oC and the numbers were significant lower than 20 and 25oC. The adult longevity at 30oC when fed on the above three cultivars were 6.98, 9.53, and 9.62 days, and 16.86, 9.8, 8.4 d at 20oC. Slightly difference (+ 1 d) was shown between two cultivars. The data have suggested that the adult longevity were similar between 20 and 30oC, except no progeny were produced at 30oC. The life cycle and life able parameters of aphid fed on Chiayi Da Golden Beads leaf has shown significant higher when compared with other two cultivars. The intrinsic rate of increase (r) was the highest (0.4061) when on Kaohsiung Number Ten leaf at 25oC, and the lowest (0.0481) was shown when fed on Tainan Number three Black bean leaves. The finite rate of increase (λ) were the highest when fed on Kaohsiung Number Ten at 25oC, and the lowest when fed on Tainan Number three Black bean leaves at 30oC. The net reproductive rate (R0) was the highest when fed on Kaohsiung Number Ten leaf at 25oC (51.15) and the lowest when fed on Tainan Number three Black bean leaves at 30oC. The R0 value of those fed on ChiaDa Golden Beads at 20oC (50.22) were higher than the value at 25oC (38.23), however, the reproductive time of 20oC was shorter than the time of 25oC, for these made the r value and λ of 20oC were lower than 25oC. The mean generation time (T) was the longest when fed on ChiaDa Golden Beads at 20oC(14.05) and lowest at 30oC (8.67).
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