The branching habits of Egyptian cotton

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Identifier: branchinghabitso249mcla (find matches)
Title: The branching habits of Egyptian cotton
Year: 1912 (1910s)
Authors: McLachlan, Argyle
Subjects: Sea Island cotton Dimorphism (Plants)
Publisher: Washington, Govt. Print. Off.
Contributing Library: U.S. Department of Agriculture, National Agricultural Library
Digitizing Sponsor: U.S. Department of Agriculture, National Agricultural Library

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Text Appearing Before Image:
Fig. 2.—Mature Egyptian Cotton Plant with Limbs Suppressed. THREE BRANCH ZONES IN THE EGYPTIAN COTTON PLANT. 9 base of the stalk, which usually produce from 6 to 10 limbs. Theextent of this zone varies in different individuals. Limbs may de-velop as high as the twelfth or even the fourteenth node, but this israther an extreme limit. ZONE OF RUDIMENTARY BRANCHES, OR TRANSITION ZONE. Between the limbs and the fruiting branches there are usuallytwo or three nodes at which the buds remain dormant, or the branches
Text Appearing After Image:
ZO/ve orfHJD/ri£HT/)Ry -* branches Fig. 1.—Diagram of an Egyptian cotton plant, showing the nature of branching in theYuma variety, an acclimatized strain. The perpendicular line represents the axiswhich bears vegetative branches or limbs (straight lines) and fruiting branches (zig-zag lines) ; the zigzag lines arising from the limbs are the secondary fruiting branches.The zone of rudimentary branches is indicated at three nodes between the limbs andthe fruiting branches. The nodes of the axis are numbered. are extremely short or abortive. For convenient reference, thisregion is termed the zone of rudimentary branches. -It is not un-common to find in this zone fruiting branches, a few inches in length,with all flower buds absorbed, sometimes accompanied by an abortiveor abnormal axillary limb. This portion of the stem may be looked 10 THE BRANCHING HABITS OF EGYPTIAN COTTON. on as the zone of transition from the vegetative to the fruitingcondition. Infrequently a large limb occurs

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