degrees. Standard pest and fertility manage- 

 ment practices were used. 



Tree size and yield were measured annually; 

 however, trees were not allowed to fruit until the 

 fourth growing season (1987). In 1989, 1990, 

 1992, and 1993, periodic harvests of four fruit 

 per tree were made throughout the harvest 

 season for the assessment of internal ethylene 

 concentrations. Single harvests often fruit per 

 tree were made on October 3, 1990, October 3, 

 1991, October 5-6, 1992, and October 11, 1993 

 for the assessment of soluble solids concentra- 

 tion, starch loss, and watercore development. 



7y*ce Size and Productivity 



Figure 1 reports the average height, spread. 



and trunk circiunference of trees from this 

 planting. Due to the need for containment 

 priming of trees that exceeded the 12-foot spac- 

 ing, height and spread do not present an accu- 

 rate picture of trees on P. 18, A.313, seedling, 

 MAC.1,B.490,M.4, M.7EMLA,orP.l. Trunk 

 cross-sectional area likely is a more accurate 

 measure of relative tree size. These trees broke 

 into a few distinct size groupings. Standard- 

 sized trees were produced by P. 18, A.313, seed- 

 ling, MAC.l, and B.490. M.4 resulted in semi- 

 standard trees. M.7 EMLA and P.l produced 

 semi-dwarf trees. M.26 EMLA, C.6, and 

 MAC.39 resulted in large dwarf trees, and P.22 

 and P. 16 produced subdwarfs. B.9 and P.2 

 produced trees intermediate in size to these last 

 two categories. 



Fruit Notes, Summer, 1994 



13 



