214 GROWTH OF TREES AND FORMING OF FRUIT BUDS ' 



laterally on one-year wood. On trees making a vigorous termi- 

 nal growth, few lateral fruit buds are found on the one-year 

 growth, however, and these are generally near the base. The 

 spur fruit buds may occur singly around the spur, but often are 

 found in a whorl or cluster about the terminal leaf bud. 



With sour cherries, fruit buds are freely produced on both 

 fruit spurs and one-year wood. On terminal growths up to 7 

 or 8 inches, nearly every lateral bud is a fruit bud. As a 

 result, sour cherries produce a great deal of fruit on one-year 

 wood, like the peach and Japanese plum, although the fruit 

 buds appear singly in the cherry. If all the lateral buds on 

 cherry shoots are fruit buds, no leaf buds are then available 

 from which new spurs can be developed, and this wood remains 

 bare of spurs and fruits in the future. It is thus advisable to 

 produce vigorous shoots on the cherry, so that some of the 

 lateral buds formed will be leaf buds from which fruit spurs 

 can develop. Trees v/ith a good spur system generally pro- 

 duce more fruit and the spur buds are more resistant to cold. 

 Fruit buds on the spurs occur singly or in clusters. Each 

 fruit bud usually produces from one to three flowers. 



Quince, The quince produces terminal and lateral fruit 

 buds on one year-wood. Growth from the fruit buds is some- 

 what different from that of the fruits previously described. 

 Instead of opening into a short cluster base with several blos- 

 soms, like the apple, the terminal fruit bud of the quince, 

 makes a short, leafy, growth of one to several inches, and a 

 single flower is then unfolded. Lateral fruit buds formed 

 on the shoots of the previous season's growth may also produce 

 short growths and then blossom. Fruit buds for the next 

 year's crop are produced terminally and laterally on short 

 growths, which arise from either the bearing or non-bearing 

 shoots. 



(/) Determine the Time and Manner of Fruit-Bud Forma- 

 tion, Fruit buds are formed the year previous to their open- 

 ing. At some time during the early summer, after the buds 

 are formed, differentiation occurs inside of the buds which 



