The Effect of Removal of the Root-System of Barley on the Production of Ears

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Abstract
Complete removal of roots of barley plants, grown in water culture, at a stage before the plants have attained their maximum shoot number, results in a significantly greater number of ears at harvest. If the roots are excised when shoot number is beginning to decline the number of ears is decreased. The exact cause of the phenomenon is not known but it is suggested that it may be due to a temporary diversion of carbohydrate to the shoots when the roots are excised.

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