Table 2.

Average color improvement to trunk- and branch-applied manganese treatments and soil-applied fertilizer.

Trunk Study
Treatment numberNo. of treesAverage Leaf Color ratingColor improvementSignificant difference level of confidence
19781979
133.63.60.0
256.05.40.665%
34N/AN/AN/AN/A
434.34.00.390%
535.04.60.360%
636.65.01.675%
744.02.02.080%
845.23.22.085%
946.05.60.390%
1046.75.01.775%
1136.34.32.095%
1232.32.30.0
Branch Study
1366.00.0
2366.00.0
3366.00.0
4366.00.0
5366.00.0
6373.33.395%
7373.04.090%
8373.63.395%
9373.63.395%
10373.63.395%
11373.63.395%
12377.00.0
  • * Color rating on a scale of 1 to 10, with 1 representing dark green leaves and 10 representing chlorotic, undersized, and scorched leaves.

  • N/A = Not available