., 2018 ). Recently, it was demonstrated that certain combinations of amino acids can effectively promote the proliferation and differentiation of rhizomes during the rapid propagation of C. goeringii ( Huang and Fang, 2021 ). Melatonin ( N -acetyl-5
Vegetative cutting is an indispensable propagation technique for the mass production of ornamental annuals, perennials, herbs, shrubs, trees, and foliage plants. This method offers substantial advantages of maintaining identical phenotypic traits
propagation techniques that can be used include budding, grafting, cuttings, and air-layering. The production of seedlings for rootstock is required for budding and grafting and this makes these methods time-consuming and expensive. As a result of the great
vegetative material, making genetic and sanitary control difficult. Formation pruning is also expensive because the use of wood cuttings promotes a shrub-like growth. Later, Hartmann (1946) developed a technique for olive tree propagation by leafy
Research was conducted at the University of Tuscia (central Italy) to validate the propagation system for globe artichoke (Cynara cardunculus var. scolymus) described in a previous paper for a 1-year production cycle. The resulting globe artichoke plants were used in a 2-year field trial to investigate the field response of plantlets obtained with our propagation technique in comparison with plantlets produced by in vitro propagation and by offshoots harvested in commercial fields. The total number of artichoke plantlets obtained with our propagation system was 62.7 plantlets/m2 per year. In the first year, the globe artichoke production (bud number and fresh bud weight) was higher in plants obtained with our propagation system and by micropropagation than in those obtained from offshoots harvested in commercial fields. The production cost of plantlets obtained with our propagation technique was 52% lower than those of the micropropagated plantlets. This could lead to a significant reduction of production costs for artichoke growers, while preserving the advantages of in vitro propagation (disease-free plants and plant uniformity).
Abstract
Media, nutrition, light and temperature studies were conducted with several species of Cactaceae and Crassulaceae to develop systems for propagating and growing succulents from seed or cuttings in the cool climates and low light irradiances found at northern latitudes. A peat-perlite (1:1 by volume) medium was suitable for rooting and growth. Nitrate nitrogen applied at the rate of 100 ppm with every watering appears optimal for various species at all stages of propagation and development. Most species grew equally well when grown at 10° or 17ºC night temperature. Acceptable germination percentages were obtained with an irradiance of 220 µE·m−2s−1 and a medium temperature of 24°C.
151 POSTER SESSION 20 (Abstr. 326-348) Propagation/Tissue Culture Wednesday, 26 July, 1:00-2:00 p.m.
epiphytic orchids of south Florida, mostly from poaching, habitat loss, natural disasters (e.g., Hurricane Wilma, 2005), exotic species, and habitat mismanagement, the development of artificial propagation methods to augment existing conservation practices
44 POSTER SESSION 3 (Abstr. 098-108) Propagation/Tissue Culture Thursday, 29 July, 1:00-2:00 p.m.
44 POSTER SESSION 3 (Abstr. 098-108) Propagation/Tissue Culture Thursday, 29 July, 1:00-2:00 p.m.