Abstract:
Introduction borage (Borago officinalis L) is among the most ancient pharmaceutical plants used in Iran and other regions of the world. Examining the resistance of this plant against environmental stresses appears necessary given its importance and the abundance of arid lands. Thus, the present study was devised to evaluate the impact of various drought stress levels on the qualitative traits and high-consumption nutrients' concentration in borage over 2020-2021 in a farm located in Anbaran village. Treatment included three drought stress levels including a1: control (no stress), a2: normal stress (irrigation at 70% field capacity), and a3: severe stress (irrigation at 40% field capacity). The present study then investigated the qualitative traits and nutrient content of the plants. Results of variance analysis of the studied traits indicated a significant difference between the different treatments in terms of the studied traits and nutrient contents at 1% and 5% significance levels. In other words, drought stress has significant impacts on the studied variables. Drought distress of 70% FC reduced the potassium, nitrogen, protein, and phosphorus contents and reduced them to their lowest points, but increased the content of sodium, proline, and carbohydrates which reached their peak. The main mechanisms against drought stress in this plant include increasing osmotic compounds such as soluble sugars and proline.
Page(s):
650-657
DOI:
DOI not available
Published:
Journal: Bioscience Research, Volume: 19, Issue: 1, Year: 2022
Keywords:
Qualitative traits
,
Drought stress
,
borage
,
highconsumption element concentration