Archive image from page 139 of Culture of the grape (1866). Culture of the grape cultureofgrape00stro Year: 1866 ( 130 CULTURE OF THE GRAPE. winter. It is true, a vine with the two arms can be bent backwards to the ground, so that the trunk and the arms can be covered; yet it is not an easy process, and will require more of a bank of earth to effectually cover the trunk than can well be spared from the roots. The prin- ciple of the system may be entirely preserved with a single arm, as is represented in fig. 25. It may be sug- Fig. 25. gested, that, if but one arm is used, it would be nece
Archive image from page 139 of Culture of the grape (1866). Culture of the grape cultureofgrape00stro Year: 1866 ( 130 CULTURE OF THE GRAPE. winter. It is true, a vine with the two arms can be bent backwards to the ground, so that the trunk and the arms can be covered; yet it is not an easy process, and will require more of a bank of earth to effectually cover the trunk than can well be spared from the roots. The prin- ciple of the system may be entirely preserved with a single arm, as is represented in fig. 25. It may be sug- Fig. 25. gested, that, if but one arm is used, it would be necessary to have it about equal in length to the combined length of the two arms; and that, consequently, the extreme end of the single arm would suffer, inasmuch as the upright shoots are strongest near the base. It is true, that, if an upright shoot starts at the bend of the arm, it will receive more than its proportion of vigor; but, when the sap is
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