. The pruning-book; a monograph of the pruning and training of plants as applied to American conditions. «-i»^*ff5-^ a. ^^ -^^.^^P^^^j^ 2^ 126. Open-ceutered framework for apple tree. general advantages of low-trained trees are notthe chief ones secured in California in low-head-ing. Hundreds of thousands of trees have beendestroyed by the exposure of a long, bare trunkto the rays of the afternoon sun. The sun-burned sides have given the conditions desired TWO TYPES OF APPLE HEADS 203 by borers, and destruction has quickly young trees have not survived theirfirst season in t
. The pruning-book; a monograph of the pruning and training of plants as applied to American conditions. «-i»^*ff5-^ a. ^^ -^^.^^P^^^j^ 2^ 126. Open-ceutered framework for apple tree. general advantages of low-trained trees are notthe chief ones secured in California in low-head-ing. Hundreds of thousands of trees have beendestroyed by the exposure of a long, bare trunkto the rays of the afternoon sun. The sun-burned sides have given the conditions desired TWO TYPES OF APPLE HEADS 203 by borers, and destruction has quickly young trees have not survived theirfirst season in the orchard, because of burned. 127. Ideal framework for apple tree. bark ; or this, with the added injury of is found by California experience that thegrowth is more vigorous in the branches whenthey emerge near the ground. 204 SOME SPECIFIC ADVICE The number of main or scaffold limbs shouldbe decided upou, in a general waj, before prun-ing of the young tree is seriously begun. Toomany limbs are more frequent than too or five scaffold limbs are usually sufficientfor an orchard tree. The operator should alsoconsider whether he wants the trunk to continuebeyond the branches. Figs. 126 and 127 suggestthe problem. In Fig. 12G is shown a singlestory apple tree, and in Fig. 127 a doublestory tree. It is impossible to secure the latterform in all varieties of apples, and rarely possiblewith peaches, but it is nearly always easih securedwith pears. Wherever such form can be obtained,the writer believes that it (Fig. 127) is to bepreferred. It is then possible to secure a greatersurface for fruit-bearing,
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