TABLE V-6.


Evaluation of days to flower, ear-height,and
rotted ears in 15 maize varieties grown in
three sites, Chimaltenango, Guatemala.


Treatment Days to Ear Rotted
(cultivar) flower height ears
 (cm) (%)

 14 128 117 6.3
 6 127 124 6.3
 9 130 132 5.0
 11 132 135 6.1
 7 129 127 6.1
 8 134 135 5.8
 13 125 105 4.9
 4 129 128 6.7
 5 129 130 6.9
 12 132 118 5.6
 2 125 121 2.5
 3 130 123 4.8
 1 127 125 5.5
 15 131 126 7.1
 10 127 119 14.2

x 129 124 6.3
CV% 2.02 9.91 50.4

Source: ICTA, Guatemala

Variety 10 showed the lowest yield and also the highest
percentage of rotted ears (14.2%). Other varieties ranged
from 2.5% to 7.1%. Days to flower and ear height show
very contrasting values. Varieties 11 and 13 are the
earliest (128 and 125 days to flower) and also have the
lowest ear height (117 and 105 cm). Concomitantly,
varieties 11 and 8 are the latest flowering (132 and 134
days) and the tallest (135 and 135 cm).

 These observations contributed to the conclusion that
these varieties, in view of their contrasting phenotypes,
should be considered for further evaluation in regional
trials, as well as in exploratory trials designed to
identify novel crop associations and plant distribution.