. Bulletin . otal yield as if the fruithad not been thinned. Cer-tainly, the increased sizeof the fruits will be enoughto make the crop moreprofitable than a large cropof small fruits. With some crops like thegrape an unpruned vinewill produce more poundsof fruit for the first yearthan a pruned vine, but inthe succeeding year it willproduce less than thepruned vine. Likewise, the quality and size of bunch is so inferiorboth years that the pruned vine is far more valuable. In California and other western fruit sections many growersof stone fruits changed from an annual heading back to a thinnin
. Bulletin . otal yield as if the fruithad not been thinned. Cer-tainly, the increased sizeof the fruits will be enoughto make the crop moreprofitable than a large cropof small fruits. With some crops like thegrape an unpruned vinewill produce more poundsof fruit for the first yearthan a pruned vine, but inthe succeeding year it willproduce less than thepruned vine. Likewise, the quality and size of bunch is so inferiorboth years that the pruned vine is far more valuable. In California and other western fruit sections many growersof stone fruits changed from an annual heading back to a thinning-out type of pruning. They did this after experiments had shown ahigher yield in favor of the thinning-out pruning. However, thesemen had never hand-thinned their fruit when they headed back inpruning, but when they adopted the thinning-out system, theyfound hand-thinning very necessary. Then comes up the economicquestion as to whether the increased yield was enough extra to payfor the cost of Fig. 8.—A close-pruning cut healing satisfactorily. 14 Example.—In Lawrence County many growers had an adageNever put a knife on a Rome Beauty apple tree. Their treeswere dense and heavy and were not able to produce high qualityapples. In 1918, the Extension Service pruned some 31-year-oldRome Beauty trees in the orchard of W. A. Knight of Athalia toshow the results of proper pruning. These trees were very dense,and branches in the lower part of the trees were deeply matted. The pruned tree produced bushels, while the unprunedtree produced bushels. In addition to the extra quantity, thesize of the fruit was increased so that it was more valuable. Onthe pruned tree, there were bushels or 68 percent over 2%inches in size, while on the unpruned tree there were only , or 55 percent, of the same size. The table is as follows: Yield of Pruned and Unpruned Trees (Bushels) S 2V. inches 1 2y2 inches 2% inches \Z%^ Culls Pruned 3 6 Uni
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