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An apple rootstock experiment designed to find the most suitable rootstocks for Western Australian conditions is described in which Northern Spy, Pomme de Neige seedling rootgrafts and Seedling were compared with Malling Merton 103, 104, 105, 106, 109, 111, 113, 11 4, 115, Malling 25 and Merton 793 over a period of fourteen years with Granny Smith and Jonathan as scion varieties. Trees on Northern Spy and MM 104, 106, 109 and 111 carried heavy crops of fruit in proportion to their size. Some members of the Malling Merton series, such as MM 106 and 109, induced precocity of bearing.

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