At harvest, seed moisture content was highest for the 7-June planting date (Table 4). The moisture level
was 21.0% for this third planting date, significantly higher than earlier planting dates. Seed yield was
also highest for the third planting date of sunflowers (1,540 lbs per acre), though not significantly higher
than sunflowers planted on earlier dates. Test weight, a measure of seed density and also the amount of
debris or trash in the yield, was highest in the third planting date. All planting dates had a test weight that
met the industry standard. Oil content was highest in the earliest-planted sunflower seeds (28.7%), but
not significantly higher than sunflower oil content from the second or third planting dates. The overall oil
yield was highest in sunflowers planted on 7-June or 25-May.
At harvest, seed moisture content was highest for the 7-June planting date (Table 4). The moisture levelwas 21.0% for this third planting date, significantly higher than earlier planting dates. Seed yield wasalso highest for the third planting date of sunflowers (1,540 lbs per acre), though not significantly higherthan sunflowers planted on earlier dates. Test weight, a measure of seed density and also the amount ofdebris or trash in the yield, was highest in the third planting date. All planting dates had a test weight thatmet the industry standard. Oil content was highest in the earliest-planted sunflower seeds (28.7%), butnot significantly higher than sunflower oil content from the second or third planting dates. The overall oilyield was highest in sunflowers planted on 7-June or 25-May.
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