The California fruits and how to grow them; . ow theinsertion of the scions he obtains an almost perfect stand. Care of Scions.—Scions should be kept cool and moist enoughto prevent drying but not wet enough to cause decay, as hasalready been described in the keeping of cuttings. Time of Grafting.—Grafting into old vine stumps is done inFebruary, March and April in different parts of the State, Marchbeing the month usually chosen for the work. If a spring graftfails, the stump may be regrafted in August or in the followingspring. In regrafting, the stump is cut off again below the pre-vious cl
The California fruits and how to grow them; . ow theinsertion of the scions he obtains an almost perfect stand. Care of Scions.—Scions should be kept cool and moist enoughto prevent drying but not wet enough to cause decay, as hasalready been described in the keeping of cuttings. Time of Grafting.—Grafting into old vine stumps is done inFebruary, March and April in different parts of the State, Marchbeing the month usually chosen for the work. If a spring graftfails, the stump may be regrafted in August or in the followingspring. In regrafting, the stump is cut off again below the pre-vious cleft. The time for the work is when the sap has ceasedflowing, usually from the first to the tenth of August. GRAFTING THE GRAPE 341 The recourse to resistant roots to escape the phylloxera hasbeen attended with some disappointment because the wild rootsat first widely used proved only partially resistant. Recently,in the main through employment of French selected varieties ofthe American wild species, stocks with satisfactory Methods of field grafting grape vines A. Whip graft for stocks 1-2 to 2-3 of an inch in diameter. B, BB. Whip graft for stocks 2-3 to 3-4 of an inch in diameter. C, CC. Cleft graft for stocks 3-4 of an inch in diameter and for old stumps. 342 CALIFORNIA FRUITS: HOW TO GROW THEM larger growth and vigor and adaptation to different Californiasoils have been secured. Notable success has been attained inthe habilitation of vineyards on the basis of resistant roots. TheUniversity Experiment Station, at Berkeley, has maintained lead-ership in this direction by publication of specific information whichcan be had by application to the Director.
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