CAJ | 학술논문

利用排除法和引入昆虫的方法相结合,研究越南篦齿苏铁(Cycas elongata)的传粉媒介.结果表明,越南篦齿苏铁靠风媒传粉和虫媒传粉的雌株结实率分别55.3%和57.2%,自然传粉的结实率为63.5%,说明风和象鼻虫都是越南篦齿苏铁的有效传粉媒介.越南篦齿苏铁散粉高峰在白天,夜间散粉很少,在3.0 m以内风传花粉的密度较高,3.0 m之外的密度急剧下降.可见,风媒和虫媒都是越南篦齿苏铁的有效传粉途径,与泽米铁类植物为专一寄主性昆虫传粉的结论不一致.
이용배제법화인입곤충적방법상결합,연구월남비치소철(Cycas elongata)적전분매개.결과표명,월남비치소철고풍매전분화충매전분적자주결실솔분별55.3%화57.2%,자연전분적결실솔위63.5%,설명풍화상비충도시월남비치소철적유효전분매개.월남비치소철산분고봉재백천,야간산분흔소,재3.0 m이내풍전화분적밀도교고,3.0 m지외적밀도급극하강.가견,풍매화충매도시월남비치소철적유효전분도경,여택미철류식물위전일기주성곤충전분적결론불일치.
The pollination vectors of Cycas ebngata were studied using exclusive method and introduction insects. The results showed that the seed setting were 55.3% and 57.2% by wind and insect as pollination vector, respectively, which were lower than that under natural pollination (63.5%). The pollinating peak of C. ebngata was at the day, and little in the dark. The pollen grains by wind were more within 3 m from the male plant, and decreased markedry over 3 m. It was conclude that wind and weevils were effective pollination vectors for C. ebngata, which inconsistent that Zamiaceae was host-specific insect pollination.