Sentence examples for movement of pollen from inspiring English sources

These hairs present the pollen to pollinators while the stigma is still unreceptive, thus facilitating outcrossing (the movement of pollen between individuals).

Based on insect observations and rates of pollen flow, it was concluded that pollen beetles (Carpophilus spp ., another potential pollen vector normally highly abundant in cotton, were not associated with movement of pollen more than 1 m away from crops.

Movement of pollen over bare ground to nearby crops was observed at a number of locations indicating that small isolation zones should not be used for containment of regulated GM cotton.

Critics of the testing say the government does not adequately measure environmental risks of genetic engineering, including the creation of pesticide-resistant species, the harm caused to plants or animals and the potential for the movement of pollen from a test site into crops intended for human consumption.

Gene flow can be caused by the movement of individuals between separate populations of organisms, as might be caused by the movement of mice between inland and coastal populations, or the movement of pollen between heavy metal tolerant and heavy metal sensitive populations of grasses.

Such dispersal may occur by way of the tiny wind-dispersed seeds of Metrosideros, which only require wind speeds of 5 19 km per hour to be air-born [40], [41], or by the movement of pollen by birds.

A series of experiments in a range of environments, designed to monitor the movement of GM pollen into adjacent cotton buffers, adjacent fields, across bare ground and over long distances are reported here.

This is an important consideration, and most modelling of pollen movement and cross-pollination has hitherto assumed that the predominant direction for pollen movement would also translate into the greatest directional degree of cross-pollination [20].

Nevertheless, the effect of pollen movement on population structure is unknown.

Furthermore, the present results are based on only one flowering season and the patterns of pollen movement may certainly vary from year to year [ 17].

However, because the progeny resulting from pollen that originated outside of the study area were not included, the actual mean distances of pollen movement will be much longer than the within population means given here.