Factors governing the initiation of sprout growth in citrus shoots
AuthorF. F. Halma
Author AffiliationsF. F. Halma was a doctoral student at the University of California and later became Professor of Subtropical Horticulture, University of California, Los Angeles. The investigation upon which this paper is based was conducted under the direction of Doctor H. S. Reed, to whom the writer is indebted for valuable advice and suggestions. Thanks are also due to Doctors H. S. Fawcett, A. R. C. Haas, and R. M. Holman for helpful suggestions in the preparation of the manuscript.
Hilgardia 1(14):295-340. DOI:10.3733/hilg.v01n14p295. April 1926.
Abstract does not appear. First page follows.
It is a well known fact that in many plants the removal of a portion of a vertical shoot results in the outgrowth of buds which otherwise would have remained dormant. This outgrowth also occurs when a vertical stem is changed to a horizontal position. This phenomenon is generally termed regeneration or reconstitution. The term regeneration is applied in this paper to the outgrowth of buds when this results either from the removal of a part or from the change of position of a stem.
In most cases this outgrowth on vertical shoots is confined to the buds in the uppermost region, the length of the sprouts declining steadily as the distance from the apex increases. In horizontal shoots the outgrowth is confined to the dorsal side, the buds on the ventral side remaining dormant. This dominance or subordination is commonly referred to as physiological correlation or simply correlation.
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