Document Type : Research Paper
Authors
1 Department of Agriculture, Payame Noor University, Tehran, Iran
2 Ph.D. of plant physiology, Payame Noor University, Tehran, Iran
Abstract
Salinity is one of the most important and common environmental stresses that affects the quantitative and qualitative yield of many plants. Fenugreek (Trigonella foenum-graecum L.) is one of the most well-known medicinal plants, which is used in the cure of many diseases due to its various effective compounds such as trigonelline. This study was aimed at investigating the effects of salinity stress on the yield components and some physiological and biochemical characteristics of four fenugreek populations under the greenhouse conditions. The pot factorial experiment was conducted in a completely randomized design with three replications. The experimental factors included four populations (Neishabour, Shirvan, Shiraz, and Ardakan) and four salinity levels (0, 30, 60, and 90 mM). At the final stages of growth, the traits including the relative water content (RWC), number of pods per plant, number of seeds per pod, 1000-seed weight, and content of soluble sugars, proline, and trigonelline were measured in the mature plants. The salinity stress decreased the yield traits such as the number of pods per plant, number of seeds per pod, and 1000-seed weight in the all populations studied. The results showed that the salinity stress also decreased the concentration of soluble sugars and RWC, but increased the content of proline and trigonelline in the seeds. The population Shiraz was superior to the others in terms of the traits studied and showed more efficient mechanisms to tolerate the stress conditions.
Keywords
Main Subjects
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