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配對時間和密度對外米綴蛾（Corcyra cephalonica（Stainton））產卵量的影響
Effects of Paired Period and Pairing Density on Fecundity of the Rice Moth, Corcyra cephalonica (Stainton)
摘要
本研究著重於研究配對時間和密度對外米綴蛾（Corcyra cephalonica（Stainton））產卵量的影響。先將本種卵粒置於底部含碎粒蓬萊糙米的廣口瓶內，移至30±1℃，70 ±5% RH，12L：12D的生長箱中累代繁殖。然後試驗未配對、配對一日和配對一生等不同配對密度時雌蛾的壽命、產卵期和產卵量，以及性比1:1時配對密度為1至6對條件下雌蛾的產卵量。結果得知外米綴蛾未配對組雌蛾壽命為10.3±0.2日，長於配對一日組（7.7±0.2日）和配對一生組（7.6±0.3日），即配對後交尾行為會縮短雌蛾壽命，但配對時間長短不會影響已配對者壽命。未配對組雌蛾產卵期為7.9±0.3日，亦長於配對一日組（6.0±0.2日）和配對一生組（6.3±0.2日）。雌蛾產卵量以配對一生組雌蛾的450.0±10.5粒最高，其次為配對一日組雌蛾的372.3±18.1粒，未配對組的318.5±10.8粒最少，即配對時間愈長則雌蛾產卵量愈多。本種雌蛾產卵量隨著配對密度增加而減少，其中以配對1對和2對時的雌蛾產卵量最多，雌蛾平均產卵量和配對密度間呈直線迴歸關係。
並列摘要
This study was with a focus on to investigate the effect of paired period and paired density on fecundity of the rice moth (Corcyra cephalonica (Stainton)). The eggs of this species were first reared in the jars containing crushed japonica rice brown rice, and place them in a growth chamber at 30 ± 1℃, 70 ± 5% RH, with a 12L:12D photoperiod for rearing multiple generations. Then the experiments were conducted to investigate the longevity, oviposition period, and fecundity of female rice moth unpaired, paired for 1 day and entire life. And research the fecundity of female rice moth with pairing density of 1 to 6 pairs at a sex ratio of 1:1. The results indicated that the longevity of unpaired virgin female was 10.3±0.2 days, which was longer than that of paired for 1 day (7.7±0.2 days) and entire life (7.6±0.3 days). That is, the mating behavior after pairing will shorten the longevity of female rice moths, but the length of pairing period will not affect the longevity of paired female. The oviposition period of unpaired virgin female was 7.9±0.3 days, which was also longer than that of paired for 1 day (6.0±0.2 days) and entire life (6.3±0.2 days). The fecundity of female rice moth was the highest at 450.0±10.5 eggs in the paired entire life group, followed by 372.3±18.1 eggs in the paired 1 day group, and the least at 318.5±10.8 eggs in the unpaired female group. That is, the fecundity of female increased with the longer the paired period. The fecundity of female decreased with the increase of pairing density in this species, and the maximum fecundity of female were paired with 1 and 2 pairs in different pairing density groups. A linear regression relationship was existed between the average fecundity and pairing density of female rice moth.