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以转植酸酶基因玉米为试材,通过花粉染色法研究了转基因玉米花粉扩散频率和距离。结果表明:不同方位花粉扩散的风险概率不同,且随着距中央转基因玉米种植区的距离增加而降低;其中,距离转基因玉米种植区1 m处花粉扩散的风险概率最大(65.6%~82.5%),显著大于距离转基因玉米种植区3 m外的花粉扩散风险概率;距离转基因玉米种植区3 m处,转基因玉米花粉扩散的风险概率也高达21.8%,而距离转基因玉米种植区5m以外花粉扩散的风险概率则低于8.7%;此外,不同日期由于气象条件不同,花粉漂移扩散的距离也不尽相同,其中,花粉扩散的最远距离可达35 m。
Transgenic phytase gene maize was used as test material to study the frequency and distance of pollen dispersal in transgenic maize by pollen staining. The results showed that the probability of risk of pollen dispersal in different azimuths was different and decreased with increasing distance from the central GM corn planting area. The risk probability of pollen dispersal was the highest (65.6% -82.5%) at 1 m away from the GM corn planting area, , Which was significantly higher than the risk of pollen dispersal within 3 m from the transgenic corn planting area. The risk of pollen dispersal in transgenic corn was as high as 21.8% at the distance of 3 m from the transgenic corn plantation, while the risk of pollen diffusion was 5m away from the transgenic corn plantation The probability is less than 8.7%. In addition, due to different meteorological conditions on different days, the distance of pollen drifting is not the same, among which the maximum distance of pollen dispersal can reach 35 m.