There is no evidence to suggest any change in GA application rate for older tubers in successive cropping cycles ( T2,T3 etc)

Key points to watch

1. Ensure any diseased or calcified ( chalky)  tubers are removed

2. Pregerminate (uniform  temp 24°C and humidity 90% for 7-10 days) so sprouts are beginning to emerge

3. Spray to runoff with 100ppm GA plus fungicide/insecticide mix

4. Allow to dry

5. Plant within 1-2 weeks as GA effect can wear off over time.

Bloomz - All the colours of life