Hard to crack research reveals how crop roots penetrate hard soils – EurekAlert

Scientists have discovered a signal that causes roots to stop growing in hard soils which can be ‘switched off’ to allow them to punch through compacted soil – a discovery that could help plants to grow in even the most damaged soils.
An international research team, led by scientists from the University of Nottingham’s Future Food Beacon and Shanghai Jiao Tong University has discovered how the plant signal ‘ethylene’ causes roots to stop growing in hard soils, but after this signal is disabled,…

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