UH232 'Uniwai Supreme'
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University
of Hawaii Jaquelyn Thomas UH232 is the second seed-propagated Dendrobium cultivar to be released by the University of Hawaii. It is a cross between tetraploid Jaquelyn Thomas UH44-50 and tetraploid Jaquelyn Thomas 0580 which arose from meristem culture. The former is white with a tinge of lavender, while the latter is two-tone purple-violet. This seed-propagated cultivar is relatively uniform. The yield is somewhat intermediate between the high yield of UH44 and the poorer yield of tetraploid 0580. The sprays are erect to arching and carry about 20 two-toned purple-violet flowers similar in color to that of the 0580 parent. Although this new cultivar has not been adequately tested, grower interest has dictated its early release. The monthly spike yields of 20 plants during 1974, the first year of production (germination date – July 19, 1971), and 1975, the second year of production are given in table 1. |
Table 1. Monthly spike yield of 20 plants of Dendrobium Jaquelyn Thomas UH232 during 1974 and 1975
|
Month |
1974 |
1975 |
|
January |
0 |
2 |
|
February |
0 |
0 |
|
March |
0 |
3 |
|
April |
3 |
6 |
|
May |
0 |
3 |
|
June |
3 |
15 |
|
July |
2 |
12 |
|
August |
5 |
7 |
|
September |
3 |
40 |
|
October |
2 |
15 |
|
November |
0 |
19 |
|
December |
0 |
0 |
|
Total Yield |
18 |
122 |
|
Average yield per plant |
0.9 |
6.1 |
The characteristics of UH232 are as follows:
|
Spike |
Erect to arching |
|
Average length of spike |
24 inches |
|
Average length of scape |
7 inches |
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Average number of flowers per spike |
20 |
|
Peaks of bloom |
Early summer and fall |
|
Average keeping quality in air-conditioned laboratory in water |
10 days (half-life) |
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Average keeping quality in air-conditioned laboratory in floral preserve |
18 days (half-life) |
|
Flower |
Natural spread – 2.75 x 2.5 inches; petals and sepals slightly recurved; petals – 1.75 inches long, 0.75 inch wide; sepal – 1.5 inches long, 0.5 inch wide; tip of petals and lip purple violet (RHS Colour Chart No 80A); sepals and basal part of petals light purple-violet; pedicel – 1.75 inches long. |
|
Stem |
Sturdy, up to 4 feet tall, 0.75 inch in diameter |
|
Leaf |
5.5 inches long, 2.5 inches wide |
H. Kamemoto, J. Kunisaki, Y. Sagawa, and C. Bobisud
