4- Root growth is decreased by a reduction in the amount of energy-producing food manufactured.įour classes of growth & fruit response 1- When mineral nutrients (including nitrates) are abundant but a little or no carbohydrate supply is available, the result is weak vegetative growth and a nonfruitful plant.Ģ-When mineral nutrients (including nitrates) are abundant and a carbohydrate supply is available, the result is a strong vegetative growth but little or no fruit. 2- A greater % of reserve foods is made available to the reduced number of growing points & fruits.ģ- A decrease evaporation results in conservation of soil moisture & allows a smaller tree to thrive longer under limited water conditions. Used for early spring growth until leaves are present on the tree.įood supplies can be regulated 1- The food supply is decreased by reduction of the manufacturing surface. Plant food supplies: their source & use Carbohydrates stored in the roots that were produced the prior year.
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