Low threshold tension promotes vegetative growth. Leafy plant species (i.e.
lettuce, etc.) can benefit from low tension threshold that will promote rapid
growth. A low tension threshold is also beneficial in early stage of plant
development after seeding or planting when the root system is sparse and
during the development of a vegetative framework that flowers and bears fruit
at a later stage. A relatively low tension is required to achieve maximum fresh
Excess vegetative growth reduces fruitfulness. An appropriate tension,
specific for each species, is required to achieve the right balance between
vegetation and fruitfulness.
Stress, induced by low tension, affects fruit composition (i.e. increase dry
weight accumulation, oil concentration). The right stress can save water
without reduced yield or fruit size or alternately improve fruit quality, when
yield or fruit size is reduced, without financial loss.