Effects of Short-Day and Gibberellic Acid Treatments on Summer Vegetative Propagation of Napier Grass (Pennisetum purpureum Schumach)

Figure 4

Changes in height of the uppermost expanded leaves in 3 varieties of Napier grass for 5 weeks after treatment (Exp. 2). Variety: dwarf-late heading type (DL), dwarf-early heading type (DE), and Merkeron (ME). Treatment: control (C) and foliar spray of gibberellin acid (GA₃), followed by SD (GA-SD). An arrow indicates the date of the start of treatments. and .

(a) DL

(b) DE

(c) ME