Nhu's suggested experiment is a goods first step to answering the question of Roundup's effect on seeds. An actual controlled experiment is not merely "scientific window-dressing" but a prerequisite for reliable discussion of the subject. There are other factors that could be involved rather than the direct action of Roundup on seeds; it could be that the suddenness of the increase in light after spraying is the trigger, or maybe something that the dying grass releases after being killed by Roundup but not after being killed by other means, or maybe some other mechanism. There may well be other observations that rule out some of these other factors, but a nice simple experiment like Nhu's would go far towards making this a better discussion. Lou