Table 7. Recapitulation of the agronomic and laboratory char-
acteristics. This table is offered to give an overall view of the
characteristics shown in the first six tables.
 Table 8. Growing degree days (GDD) per day, 1978-1980.
0-26.7C (32-80F.). This table gives the number of growing
degree days per day (GDD) for the three years that the confec-
tionary sunflower cultivars were under investigation. Each figure


represents the average GDD per day during each month of the
year, 1978-1980. The temperature range of 0-26.7C (32-80F)
seems to best represent the temperatures that existed in the plots
at planting time to about the optimum for growth of the crop.
The GDD above and below these extremes are ignored in this
table, as those temperatures seem detrimental to plant growth in
sunflower.


VOL. XX-PROCEEDINGS of the CARIBBEAN FOOD CROPS SOCIETY


Table 7. Confection and Birdseed Sunflower Hybrid Characteristics, Gainesville, FL. 1978 1980. RECAPITULATION--AGRONOMIC AND INDUSTRIAL CHARACTERISTICS
Acc. 1978 1978 1978 1978 1979 1979 1979 1979 1980 1980 1980
No. ------------------------------------Date of Planting-------------------------------- ------------------------
 Mar 14 Ar 13 Aug 17(W) Aug 17(E) Feb 2 Feb 28 Apr 2 Aug 16 Mar 6 Mar 12 Aug
Yields, Kilograms/Hectare 2930 910 1180 1290 1680 2310 1740 1140 670 1490


Emergence to Flowering, Days 52 51 50 51 67 58 58 45 69 58 43


Plant Heights, Centimeters 159 147 135 137 162 182 137 135 109 145 124


Seedhead Diameters, Cm. 23.9 14.0 14.7 15.4 18.2 17.6 18.1 12.4 11.9 14.7 12.7


Test Weights, Kg/HI 23.2 20.3 30.6 31.4 25.1 28.2 30.6 27.4 25.4 25.2 1/


Weights of 200 Seed, Grams ---- ---- --- ---- 20.9 19.7 23.3 14.5 17.5 15.2 --1/


Number of entries represented
in each of these averages 12 12 5 3 6 6 6 6 9 9 10


1/ The Fall 1980 test was devastated by Redwing Blackbirds and could not be sampled for yields and other parameters.


Table 8. Growing Degree Days (GDD), 0-26.7C for sunflower, per day at the Green Acres (GA) Farm and the Agronomy
 Farm (AY), 1978-1980, Gainesville, Florida.
 Growing Degree Days (GDD) per day, 0-26.7C
 JAN FEB MAR APR MAY JUN JUL AUG SEPT OCT NOV DEC
 1978
GA -- ---- 15.3 18.0 20.9 22.9 23.2 22.6 22.1 18.8 18.0 13.9


AY 11.3 10.8 16.3 19.7 22.3 24.1 24.4 24.2 23.6 21.1 19.8 15.8


 1979


GA 10.9 11.9 15.3 18.8 20.0 22.2 23.4 23.1 23.4 18.7 15.7 -


AY 12.6 13.1 17.1 20.8 21.8 23.4 24.7 24.2 24.4 20.8 18.2 14.6


 1980


GA -- -- -- -- -- -- -- --


AY 13.7 11.7 17.8 19.3 22.0 23.4 24.5 24.5 23.8 20.6 16.9 12.4


 AVERAGE


GA 10.9 11.9 15.3 18.4 20.4 22.6 23.3 22.8 22.8 18.8 16.8 13.9


AY 12.6 11.9 17.1 19.9 21.6 23.6 24.6 24.3 23.9 23.9 18.3 14.3


125