Effect of Presprouting Plant Growth Regulators and Natural Materials on Dormancy, Growth, and Yield of Potatoes (Solanum tuberosum L.)

Figure 1

Means and standard error bars of germinated potato varieties (plant stand count) as affected by natural materials (soil, banana leaves, and grass) and plant growth regulators (GA₃, BAP, and Zeatin). Stand counts 2, 3, 4, and 5 weeks after planting. (a) Dutch Robijn; (b) Kenya Karibu; and (c) Shangi variety.

(a)

(b)

(c)