The range for the third highest yield is from 5.01 to
(5.01 1.31) = 3.70, which includes all but the lowest
three indicated by the letter "b". The letters at the
right of the treatment means in Table IV-4 indicate the
four groups within which there is no significant
difference.
 Table IV-5 presents the agronomic characteristics of
the varieties under evaluation.

TABLE IV-5. Agronomic characteristics of 15 varieties
 evaluated in a site-specific trial in
 Chimaltenango, Guatemala.

Variety Days to Plant Ear
 Flower Height Height
 (m) (m)
 1. Los Pitos 129 2.85 1.60
 2. Garcia 127 3.25 2.40
 3. Cojobal 127 3.35 2.20
 4. Ajquejay 126 3.10 2.15
 5. Lopez 128 3.45 2.30
 6. Unec 127 3.15 2.90
 7. V-304 117 2.25 1.15
 8. Argueta 124 2.55 1.25
 9. Marroquin 120 3.40 2.25
 10. Santizo 119 2.50 1.45
 11. Tsut 128 3.55 2.40
 12. Ordoiez 129 3.40 2.25
 13. Don Marshall 107 2.00 1.00
 14. Sintetico Chanin 102 2.20 1.15
 15. Chanin-4 103 2.70 1.20

 Source: ICTA, Guatemala

 The analysis shows the highest-yielding group of varieties
 among which there is no significant difference (varieties
 3, 2, 9, 5, 4, 1, 6, 7, 10, 8, and 11), and two
 (varieties 3 and 2) which are significantly different from
 the four lower-yielding varieties (12, 13, 14, and 15).
 The best varieties were the local materials and the
 lowest-yielding were the experiment station varieties Don
 Marshall, Sintetico Chanin, and Chanin-4. These last
 varieties were selected for earliness and lower plant
 height.