Effects of Node Position and Electric Conductivity of Nutrient Solution on Adventitious Rooting of Nasturtium (Tropaeolum majus L.) Cuttings

Nasturtium is a popular herbal plant, widely cultivated as culinary and medicinal plants all over the world. However, seed propagation of nasturtium inefficient, in-vitro sophisticated high-cost. In this study, cutting method was employed to produce seedlings. We aimed determine optimal conditions for seedlings by investigating effects node position electric conductivity (EC) nutrient solution on root formation cuttings. Cuttings from five positions (apical bud, 2nd node, 3rd 4th 5th node) were subjected water EC (1.0, 2.0, 3.0, 4.0, 5.0 dS m?1) treatments with hydroponic cultivation system in plant factory. Results showed that cuttings rooted successfully within two weeks. The apical bud earliest produced most roots regardless level. other longer heavier fresh dry weights than those position. under 1.0 m?1 had greatest number, longest length, heaviest positions. considered best condition range tested can be used seedling materials.