Production of pre-basic potato seed by polyvinyl chloride PVC: articulate gutters hydroponic system

Abstract

The development of more efficient and productive systems for pre-basic seed potato production would improve the quality of the propagative material used by the potato growers, directly affecting the crop yields. A two-year experiment was carried out to evaluate the potato pre-basic seed production by two types of hydroponic systems (fibrocement tiles and articulated PVC gutters), two cultivars (`Baronesa` and `Eliza`) and two types of propagative material (plants coming from in vitro culture and minitubers). The PVC gutters system was highly efficient. When using minitubers, this system reached multiplication rates up to 74 tubers per plant. Minitubers were more productive than in vitro plants, independent of cultivar and hydroponic system utilized.

Determination of optimal condition to obtain the bromelain from pineapple plants produced by micropropagation

“…Pérola and Imperial cultivars were provided by the EMBRAPA Tabuleiros Costeiros (Aracaju, SE, Brazil). The micropropagation was carried out using MS medium (Murashige and Skoog 1962) without growth phytoregulator as described by Corrêa et al (2009), Quoirin et al (2008), Radmann et al (2011) and Scherwinski-Pereira et al (2009). The MS medium was supplied with 30 g/L of sucrose and 7 g/L of agar-agar.…”

“…These in the multiplication phase were 10 and 25 µmol of concentrations of BAP and ANA, respectively. During the multiplication phase, the plants were grown for three and eight months (Corrêa et al 2009;Quoirin et al 2008;Radmann et al 2011;Scherwinski-Pereira et al 2009).…”

“…However, Radmann et al (2011) observed that between 20-40 days of growth of 'Flordaguard' rootstock, longer cultivaion time was best. Scherwinski- Pereira et al (2009) showed that effect of the growth time varied the seasons for the potato plants. The crop period was fast in springsummer (96 days) than autumm-winter (107 days).…”

“…This technique decreases the production time and increases the productivity and resistance of plants to the diseases, helps in the regeneration, control in propagation genetic improvement, etc. There are other techniques such as genetic transformation that can be incorporated in a genetic breeding program in order to increase yields, shorten production cycles and promote the development of high quality plantations (Alcantara et al 2011;Corrêa et al 2009;Pereira et al 2011;Radmann et al 2011;Scherwinski-Pereira et al 2009).…”

Performance of five potato varieties with regards to growth and production of mini-tubers under an aeroponic system in central highlands of Kenya

“…The technology has the potential of reducing at least one generation of seed multiplication in the field, with lower costs and Mbiyu et al 367 maintains high phytosanitary quality (Nichols, 2005). Production of mini-tubers can be increased and production costs lowered using aeroponics (Scherwinski-Pereira et al, 2009). Aeroponic systems have also been reported to have high production efficiency per unit area (> 900 mini-tubers m ) (Rykaczewska, 2016).…”