Table 3. Percent dry weight of outer petiole, heart petiole and stem tissue of
 celery harvested at three stages of maturity.

Estimate Outer Heart Stem
maturity petiole petiole tissue

 Experiment 1

1 week before 4.32 4.11 7.81
optimum 4.23 4.48 8.08
1 week after 4.07 4.65 8.38

Significance ** ** **

 Experiment 2

1 week before 3.48 3.47 6.25
optimum 3.72 3.80 6.90
1 week after 4.02 4.12 7.21

Significance ** ** **


B. Effects of maturity on tissue content of some plant nutrients, all expressed
 as percent of dry weight.


Table 4. Percent total nitrogen of various plant parts of celery harvested at
 three stages of maturity.

Estimated Outer Heart Stem
maturity petioles petiole tissue

 Experiment 1

1 week before 2.39 3.04 2.87
optimum 2.18 2.93 2.58
1 week after 1.97 2.69 2.31

Significance ** ** **
 Experiment 2

1 week before 1.66 2.64 2.30
optimum 1.43 2.54 2.38
1 week before 1.22 2.43 2.18

Significance ** ** **