The pollen contamination in a seed orchard is a principal factor influencing the genetical quality of a seed orchard.
林木种子园花粉污染是影响种子园种子遗传品质的重要因子,由于野生同种花粉进入种子园而增加遗传损失。
Theoretical analysis and indirect detection indicated that the pollen contamination rate of this pollination technique was no higher than 1%.
)的生物学特点 ,实践上常采用不套袋杂交授粉技术 ,理论分析和间接检测结果证明这种杂交授粉方式的花粉污染率低于 1% ,但到目前为止仍缺乏直接的检测证据。
Irrespective of alien pollen contamination, gamete production uniformity ind.
结果表明，在不考虑外源花粉污染时，该时期油松种子配子的贡献平衡指数分别为９５。
Objective To investigate the species of the airborne pollens, their diffusion rules and correlation with pollinosis in Southern suburban area of Chonqing city.
目的 调查重庆市南郊空气中气传花粉的种属和飘散规律及与花粉症的相关性。
Objective To investigate the classification, amount and seasonal distribution of airborne pollen in Shenmu County, Shaanxi Province.
结论该地区花粉季节有两个:夏秋季为主要花粉季节,主要气传花粉为蒿属及藜或苋科等莠草花粉;春季为次要花粉季节,主要气传花粉为树木花粉;蒿属花粉为该地区绝对优势气传花粉。
Objective:To investigate the airborne pollen concentration in Beijing city during autumn and to grade the Artemisia pollen concentration.
目的:了解北京市秋季主要气传花粉的浓度,并对蒿属花粉浓度进行分级。
Airborne Pollens in Shenmu County, Shanxi Province in Successive Three Years
陕西省神木县连续三年气传花粉监测
Survey of airborne pollen and fungal spores and their relationships with allergic rhinitis in Ningbo
宁波市气传花粉和真菌与变应性鼻炎致敏原
The relationship between airborne pollens and allergic asthma in Jingmen districts of Hubei province
湖北省荆门地区气传花粉与过敏性哮喘的相关性
To pollinate(a flower)by means of cross - pollination.
异花传粉用异花传粉的方式传花粉给（花朵）
cross pollination
异体授粉，异花传粉
Study of airborne pollens in central region of Taiyuan City during summer and autumn
太原市中心地区夏秋季气传致敏花粉调查分析
To transfer pollen from an anther to the stigma of(a flower).
传授花粉给…从（一朵花）的花粉囊传到柱头
fertilization by transfer of pollen from the anthers to the stigma of the same flower.
花粉从一朵花的花粉囊传到同花的柱头上。
transfer of pollen from the anther to the stigma of a plant.
花粉从花粉囊传递到植物的柱头上。
an insect that carries pollen from one flower to another.
从一朵花到另一朵花传授花粉的昆虫。
On the plus side, wind dilutes and scatters air pollutants, and carries pollen.
从好处来说，风能稀释和驱散空气中的污染物质，传播花粉。
Transfer of pollen from one plant to another;cross - pollination.
异花受粉把花粉从一棵植物传到另一棵里；异花受粉
Pollination is the mechanical transfer of pollen from the anthers to the sti gmas.
授粉是机械地把花药里的花粉传送到柱头上去。
Pollinated by water, as the flowers of ribbon grass and hornwort.
水媒的通过水传花粉的，就象金鱼藻的花传花粉一样
fertilization by transfer of pollen from the anthers of one flower to the stigma of another.
花粉由一朵花的花粉囊传递到另一朵花的柱头上。
Any of various airborne substances, such as pollen or spores, that can cause an allergic response.
空气过敏原能导致过敏性反应的各类空气传播的物质，如花粉或孢子
Pollinated by wind-dispersed pollen.
风媒传粉的通过风的飘散来传播花粉的
It is obvious that the amount of background pollination will reflect the size of any local source.
显然外来传粉的数量可以反映当地花粉源的大
