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不育剂量的60Co-γ射线辐照会对某些昆虫的存活产生影响,为明确不育剂量的γ射线辐照对昆虫的影响,以柑橘大实蝇蛹为靶标,以辐照剂量为100 Gy和110 Gy、剂量率为2 Gy/min的60Co-γ射线进行辐照。研究结果表明,不育剂量60Co-γ射线辐照后,柑橘大实蝇雌虫和雄虫交配前期的死亡率较对照无显著提高;处理雌雄虫的第一死亡高峰与对照一致,均在成虫羽化后的1-3 d,雌虫的第二死亡高峰也与对照一致,但100Gy雄虫的第二死亡高峰比对照前移3 d,110 Gy雄虫的第二死亡高峰延迟时间较长(6 d)。100 Gy和110 Gy辐照雄虫的校正死亡率(24.53%和39.62%)显著高于辐照雌虫(7.63%和21.61%),两个不育剂量下雌虫存活能力较强。本文结果可为选择合适的柑橘大实蝇辐射不育剂量、确定辐射虫田间释放量和释放时期提供依据。
In order to clarify the effects of γ-ray irradiation at a sterile dose on the insects, 60Co-γ-ray irradiation with infertile doses affected the survival of some insects. Taking the target pupal of the citrus tarsal as target, the radiation dose was 100 Gy and 110 Gy at a dose rate of 2 Gy / min. The results showed that the mortality rate of males and males before matings was not significantly increased after 60Co-γ-ray irradiation. The first death peak of males and females was the same as that of the control, After 1-3 days, the second peak of female mortality was also consistent with the control, but the second peak of 100Gy male was 3 days earlier than the control and the second peak of 110 Gy was longer (6 d). The corrected mortalities (24.53% and 39.62%) of 100 Gy and 110 Gy irradiated males were significantly higher than those of irradiated females (7.63% and 21.61%), respectively. The results of this paper can provide the basis for selecting the suitable dose of radiation sterility for the Dianthus citrange and determining the release and the release period of the radiation insects.