Yield falls before the leaf wilts

The first drought move is to close the pores that let carbon in. Photosynthesis falls. Fruit set can fail. Only later does the leaf go limp.

Heat, salts that act like drought, and waterlogging that suffocates roots all cut the factory without a dramatic collapse on day one.

Walk for dull, slightly rolled, or quiet canopies in the heat of the day — not only for plants on the ground. The intro series covers reading turgor; this story is the yield cost of waiting for it.

If set is poor after a hot week with “no wilt,” the plant already rationed.

In this series

• Ask what cuts sugar production — not which bag to add
• A crop is only as good as its root system
• Maximise yield per drop, not drops per hectare
• Yield falls before the leaf wilts
• Fruit drop is the plant aborting when resources fail
• Architecture: every productive leaf needs light