94

y NS = not significant, * significant at P=0.05, ** at P=0.01, and * * * at P=0.001. r = the sample correlation coefficient and is a measure of extent to which samples of two variables are linearly related.

2 TCA: trunk cross-sectional area in cm2

Independent variable Dependent variable 2004 2005 2006 Average 2004-2006

Significance r Significance r Significance r Significance r

TCAz Fruit set 0.63 NS y 0.23 NS 0.34 NS 0.88 NS

TCA Number of clusters 0.0000*** 0.60 0.02* 0.32 0.18 NS 0.0003*** 0.52

TCA Number of flowers 0.0000*** 0.72 0.0000*** 0.58 0.0000*** 0.59 0.0000*** 0.76

Flower duration Harvest duration 0.49 NS 0.46 NS 0.82 NS 0.62 NS

Flower duration Fruit set 0.50 NS 0.31 NS 0.61 NS 0.64 NS

Flower peak Harvest peak 0.003** 0.44 0.06 NS 0.09 NS 0.001** 0.41

Number of flowers Fruit set 0.002** -0.49 0.75 NS 0.74 NS 0.31 NS

Number of flowers Number of clusters 0.0002*** 0.55 0.08 NS 0.0000*** 0.51 0.0000*** 0.51

Fruit set Yield 0.23 NS 0.0000*** 0.67 0.0000*** 0.51 0.005** 0.36

Number of flowers Yield 0.004** 0.44 0.01* 0.35 0.0000*** 0.56 0.0000*** 0.69

Fruit weight Yield 0.90 NS 0.65 NS 0.09 NS 0.25 NS

Table 4. Correlation coefficients for trunk cross-sectional area, flowering characteristics, and harvest data for mature trees of eight pawpaw selections in 2004, 2005, and 2006.

JOURNAL OF THE AMERICAN POMOLOGICAL SOCIETY