quicker

Greater cell density induces stress that leads to a quicker breakdown of not only synNotch in particular, but also cell surface sensors in general.

"Collectively, weeds are adapting quicker than our ways to manage them. Climate change appears poised to put this evolution on a faster track," he said.

She said Mr Welby's decision was "absolutely the right thing to do" but that it "probably could have happened quicker".

An independent review of a year to 18 months could change things quicker.

"I've been watching her for about five years now and every year she has got a little bit better - I don't think people appreciate her enough. She's got quicker, she's got more consistent."