December 1, 2008
The establishment of Imperata cylindrica was compared by planting greenhouse grown ramets and field collected tillers (wild type). The ramets were collected taking rhizomes from a single plant, cutting them in pieces that contained two nodes, and then planting these in a composted pine bark potting mix. The wild type was produced by harvesting field-grown cogongrass, trimming the roots to 2 cm, and planting individual tillers in the same potting mix. All plants were then placed under mist until they had become established. The ramets and wild types were then potted in a mixture of 80:10:10 bark:sand:peat (v:v); in 30-cm-diameter pots. The pots were then placed on greenhouse benches. Data collected every 2 weeks for tillers per plant indicated that the wild type group had a significantly better production. At the later stages of development (6, 12, 18, or 24 weeks), wild type produced plants had greater length of tillers; and dry weights of tops, rhizomes and roots.