Fall-Winter, 1990-1991

 The four varieties were evaluated during the fall-winter season. The trial was planted on December 12, 1990,
using similar field procedures as In the summer-fall trial. The crop was harvested eight times between January 23
and February 10, 1991.
 Yields were generally lower than those obtained in the summer-fall planting (Table 8). All varieties produced
yields of less than 17 t ha1. Tropicuke, Victory and Dasher II produced similar yields. Although Gemini 7 produced
the lowest yield, it maintained the largest fruit size (434 g).

 Table 8. Total marketable yield of cucumber varieties grown during
 fall-winter, 1990-91, at UVI-AES.

 Marketable yield1 Fruit size'
 Variety (t ha') (g)

 Tropicuke 16.5 a 298 a
 Victory 15.5 a 301 a
 Dasher II 14.9 a 301 a
 Gemini 7 11.6 a 439 b

 'Means within a column followed by the same letter are not significantly
 different by Duncan's Multiple Range Test, (P=0.05).


Spring, 1991

 A spring trial was planted on April 18, 1991, to evaluate yield performance of four varieties. Since Gemini 7
produced lower yields than the other varieties in previous trials, it was replaced by Calypso. Varieties Victory,
Tropicuke and Dasher II were included in this trial. Field design and procedures were followed as in previous trials.
 The crop was harvested four times between May 30 and June 11,1991. As shown in Table 9, marketable yields
were generally low. All varieties produced yields of less than 10 t ha'. There were no significant differences in yield
among the varieties, but there were differences in fruit size. Dasher II, Victory and Tropicuke produced larger fruits
than Calypso. Heavy disease infection, particularly powdery mildew, reduced the yield of all varieties.

 Table 9. Total marketable yield of cucumber varieties grown during
 spring, 1991, at UVI-AES.

 Marketable yield' Fruit size'
 Variety (t ha-1) (g)

 Calypso 7.9 a 274 b
 Tropicuke 7.4 a 298 ab
 Victory 6.8 a 315 a
 Dasher II 6.4 a 312 a

 'Means within a column followed by the same letter are not significantly
 different by Duncan's Multiple Range Test, (P=0.05).


Summary

 Results of the trials have shown that varieties Victory, Dasher II and Tropicuke maintained high yields. These
varieties appear to be suitable for the Virgin Islands. Summer-fall and winter-spring planting seemed tobe the best
seasons for high cucumber yields in the Virgin Islands.