Primo

Primo treated Potato, cv. Sante, grown in a field were on average 10.1 % taller, had on average 29.9 % more stems/plant, the same amount tubers/plant, a higher tuber dry weight, a higher tuber yield/plant, a higher tuber yield/ha, tubers contained the same N%, the same K%, the same P%, the same content soluble solids and more crude proteins as compared to the untreated control. Double treatment 30 and 60 days after transplanting gave the highest number of stem/plant (+38.5 %), the most tubers/plants, the highest tuber dry weight, the highest tuber yield/plant and tuber yield/ha (+25.2 %), gave the highest contents in N, SSC (+ 28.6 %) and crude proteins as compared to the untreated control (most results were significant).