Issues:
Sections:
Issue 94
GENERAL BIOLOGY
UDK: 581.5:58.006:581.41.64 (470·67)
ASSESSMENT OF THE ROLE OF THE ALTITUDINAL FACTOR IN THE VARIABILITY OF THE TRAITS OF THE ADAPTIVE STRATEGY OF NIGELLA SATIVA L. DURING INTRODUCTION IN DAGHESTAN
GADZHIEV Magomed Isayevich,
KHABIBOV Ali Dzhalaludinovich
The comparative introduction studies of herbaceous monocarpic from Ethiopia Nigella sativa L. have been conducted at various altitude levels of the experimental bases of the Mountain Botanical Garden of the Russian Academy of Sciences (50, 1100 and 1780 m above sea level) for the first time in Daghestan. Recently, this plant has become widespread and used especially in folk medicine. It is found that the most favorable sites of different heights are the average altitude soil-climatic conditions - 1100 m above sea level where plants have the highest values of average morphological and weight characteristics. According to the relative variability and range of the variant, the most plastic and stable signs have been identified. As the altitude level increases: 50 > 1100 > 1780 m, a decrease in relative variability is characteristic for some features and an increase for others. The overwhelming majority (72,8%) of the correlations of weight characteristics of samples in different heights are not reliable and random by nature. Based on the results of variance and regression analyses, the role and influence of the complex altitudinal factor on the structure of variability of traits, which are primarily the main indicators of the adaptive (reproductive) strategy, have been identified and assessed. It is found that the variability of almost all of the weight characteristics taken into account, with the exception of the efficiency of the reproductive effort of the main inflorescence and all fruits, is significantly influenced by various soil and climatic conditions at different altitude levels. However, a significant influence of high level gradient of 1730 m (1780-50), is detected only for two indicators: reproductive effort, the “price” of the offspring.
Pages: 35 - 44
Date: 15.11.2024