The seedling-inarch and nurse-plant methods of propagation . quent progress made by the mangosteens on nurse stocks 202 PROPAGATING THE MANGOSTEEN. 33 has been in many instances greater than that made by seedlingsinarched by the ordinary method (PL VII). Several of these mango-steens worked by the nurse-plant method have been sent to theCanal Zone and are reported to be doing well. The remaining onesstill in the greenhouse continue to make good growth, but the stemsof the stock plants do not show as much increase in diameter as dothose of the mangosteens attached to them (fig. 14). In some ins
The seedling-inarch and nurse-plant methods of propagation . quent progress made by the mangosteens on nurse stocks 202 PROPAGATING THE MANGOSTEEN. 33 has been in many instances greater than that made by seedlingsinarched by the ordinary method (PL VII). Several of these mango-steens worked by the nurse-plant method have been sent to theCanal Zone and are reported to be doing well. The remaining onesstill in the greenhouse continue to make good growth, but the stemsof the stock plants do not show as much increase in diameter as dothose of the mangosteens attached to them (fig. 14). In some instances the roots of the nurse plants show no appreciablecessation of growth after the tops of the plants have been would expect that in such event the roots of the inarched mango-steen seedlings would not be well developed, but as a matter of factthey are much superior to those of an uninarched seedling of thesame age (PL VII), proving that as a result of the union the mango-steen is nursed along during the critical period of its existence in a. Fig. 14.—Group of mangosteen seedlings inarched by the nurse-plant method. The tops of thenurse plants have been removed. most satisfactory way. This undoubtedly indicates that the mango-steen needs treatment of this nature to bring it through the earlyseedling stages, because the roots of the uninarched seedlings, espe-cially within a year after germinating, are never robust, and. toomuch or too little water produces bad effects. Those plants, how-ever, which were inarched on other species of Garcinia by the seed-ling-inarch method seem to thrive well when subjected to the treat-ment usually accorded inarched mangos. Although our experiments in inarching the mangosteen on nurseplants have turned out very satisfactorily, not a plant being lost,the method first used has been improved considerably, so thatthere is now less danger from careless work. The nurse plants ofGarcinia tinctoria should be grown in small-sized pots, n
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