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- Title
Сравнителна оценка на толерантността към ниски температури на образци грах
- Authors
Георгиева, Наталия; Николова, Ивелина; Косев, Валентин; Илиева, Анна; Тахсин, Нуреттин
- Abstract
The present study aimed to assess the tolerance to low temperatures of 10 pea accessions (Kolorado, Arkta, P-342, Wt 6806, №3981, Fenn, BR 2-P, Szegedi szurke, WPM, Mir). The experiment was carried out during 2016, in the laboratory base of the Institute of viticulture and enology (Pleven), in a frost camera up to -11 °C, by the direct freezing method. The stress-exposed plants exhibited different susceptibility as the percentage of surviving plants varied in the limits of 35.0 to 100.0%. Аccessions Kolorado, Arkta, Fenn and Mir were distinguished with the highest survival (85.0-100.0%) and according to the calculated values of the confidence interval for each of them, they formed one group defining them as tolerant. Four of the accessions (P-342, Wt 6806, № 3981 and WPM) showed a relatively low survival (from 35.0 to 48.3%) and were determined as susceptible to low-temperature stress. With a survival value of 75.0%, accession Szegedi szurke occupied an intermediate position and was moderately tolerant. The parameters correlating with high values with the tolerance to low temperatures were the content of soluble sugars (r = 0.833) in plants, relative water content (r = -0.862) of leaves and seedling vigor index (r = 0.691).
- Subjects
LOW temperatures; PLANT shoots; X-ray diffraction; MICRORNA; PEA breeding; PEA industry
- Publication
Journal of Mountain Agriculture on the Balkans (JMAB), 2018, Vol 21, Issue 2, p101
- ISSN
1311-0489
- Publication type
Article