Showing 2 results for Soluble Sugar.
Masome Khalvandi, Mohamad Reza American, , Mahdi Baradaran, Ahmad Gholami,
Volume 6, Issue 21 (11-2017)
Abstract
In order to investigate the effect of Piriformospora indica endophyte fungi on quantity and quality of peppermint essential oil and physiological parameters under salt stress, An Research Field experiment of Agricultural Sciences and Natural Resources University of Surrey in 2015 was conducted. Experiment arranged in completely randomized design with three replicates. The experiment was done in factorial arrangement based completely randomized design with three replications. Treatments were application Piriformospora indica (including control and inoculation with P. indica) and four salinity levels of Caspian Sea water (0, 3, 6, 9 dS/m). ). Results showed that increasing of salt stress significantly decreased root colonization, leaf essential oil content, chlorophyll a, chlorophyll b, carotenoids, plant dry matter yield and relative water content, and enhance the attributes of The Secondary Metabolites such as Menthol, Menthone and Methyl acetate, soluble sugars and percentage of electrolyte leakage when salt stress was increased. Fungi inoculation, however, markedly improved Total dry weight and photosynthetic pigments. Biological treatment also reduced the negative effects of salinity on leaf essential oil content, cell membrane stability and relative water content of leaf. Overall, it seems that applied P. indica Caused increased the essential oil of peppermint By stimulating plants to increase synthesis of secondary metabolites, And extending root system And increased water and nutrient absorption By fungus hyphae. In conclusion, our results reprsented the ameliorate effect of P. indica in saline conditions, and could increase resistance to stress, greatly improve the growth characteristics of peppermint.
Samira Gholipour, Golam Reza Zamani, Majid Jami Alahmadi,
Volume 9, Issue 39 (12-2020)
Abstract
Moisture stress is one of the most important factors reducing crop yield, including oilseed crops, in Iran. Therefore, this study aimed to study the effect of different moisture levels on amino acid content of methionine, proline, soluble sugar and protein of sesame leaf in the 2018 crop year. Data water collected in a split plot-factorial experiment with a randomized complete block design with three replication at the Birjand University of Agriculture Research Farm. In this experiment, moisture at three levels (100, 75 and 50% of sesame water requirement) as the main factor application of calcium nitrate at three levels (0, 5 and 10 Mm) and putrescine at two levels (0.5 Mm and water spraying solution) were considered as sub-factors. The result showed that the interaction of moisture levels, calcium nitrate, and putrescine were significant (p <0.05) for methionine, lysine, proline amino acids and grain yield. The highest amount of methionine amino acid (0.060 mg/g fresh weight) was obtained in the case of 10 Mm calcium nitrate foliar application with putrescine use at 50% water requirement level. The dual interaction of calcium nitrate and putrescine, moisture levels and putrescine, as well as moisture levels and calcium nitrate, were significant on soluble sugar and protein of sesame leaf. In general, foliar application of calcium nitrate and putrescine was the best treatment to reduce the effect of moisture levels on sesame and indicating a synergistic relationship between them in reducing the effect of moisture stress.
