Estudo da aclimatização de plântulas de batata reno - Solatium tuberosum produzidas in vitro

Abstract

With the aim of studying the ideal conditions for acclimatizing Rhynesian potatoes, three trials were conducted, the first two in winter from the end of April to June, the second from July to August and the last trial in summer from October to November. In the three trials the seedlings of the clone 800946 were used, which were in three different stages of development where the main differences between the stages are the location of the roots in the seedlings, the quantity of the roots, the physiological state of the leaves and the life time of the seedlings in the laboratory. The trials were set up in one of the greenhouses of the IIAM. In the three trials three temperature records were made daily in different periods and the daily average was calculated. The results showed that the plants had greater development and higher survival rates in the second trial where the average temperatures were lower. The third stage characterized by having younger plants, with roots only at the base of the seedlings is ideal for taking the seedlings out of the laboratory for acclimatization, because in all the trials the seedlings of the third stage showed rapid adaptation to the substrate, rapid growth, were morphologically more robust and showed higher survival rates compared to the other stages of development.