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- Title
IN VITRO SCREENING OF POTATO VARIETIES FOR DROUGHT STRESS INDUCED WITH DIFFERENT OSMOTIC AGENTS.
- Authors
TICAN, Andreea; CIOLOCA, Mihaela; BĂRĂSCU, Nina; BĂDĂRĂU, Carmen Liliana; HERMEZIU, Manuela
- Abstract
The objective of this study was to identify potato varieties with tolerance to the drought stress, by introducing in culture medium of different osmotic regulators (mannitol, sorbitol and polyethylene glycol) with various concentrations (0%, 1% and 1.5%). The experiment was performed for three potato Romanian varieties (Marvis, Castrum and Ervant). The determinations were made for different growth and development parameters: plantlets length, number of leaves/plantlets, root length, fresh plantlet and root weight. The nutrient medium with mannitol had as effect reducing of plantlets height (6.93 cm), root length (4.41 cm) and fresh plantlets weight (0.104 g), and PEG (polyethylene glycol) had a negative influence over leaf number (8.33) and weight of the fresh root (0.040 g). The concentration of 1.5% osmotic agent drastically reduced the number of leaves (7.63), the height of plantlets (5.52 cm) and fresh weight of plantlets and root (0.087 g and 0.033 g).
- Subjects
POLYETHYLENE glycol; OSMOREGULATION; DROUGHT tolerance; DROUGHTS; POTATOES; MANNITOL; SORBITOL
- Publication
Studia Universitatis Vasile Goldis Seria Stiintele Vietii (Life Sciences Series), 2021, Vol 31, Issue 2, p78
- ISSN
1584-2363
- Publication type
Article