Abstract
The recent research was done to find out the role of ascorbic acid on morphological and physiological parameters of Solanum melongena during salt stress. The experiment was carried out in pots in which the effect of salt and ascorbic acid was measured on a range of morphological and physiological parameters. In this study, ascorbic acid was applied in two ways viz. as a foliar spray on leaves or through roots in the soil at two levels 100 ppm and 200 ppm to the plants grown under control, 60mM and 100mM NaCl. After sixty days of treatments it was determined that fresh and dry biomass was decreased considerably under salinity stress. Overall, it was observed that salt stress significantly down effect the morphological and physiological parameters. Decrease in the vegetative and reproductive parameters was improved with the application of ascorbic acid. The best result was obtained with the 200 ppm ascorbic acid which significantly improved the morphological and physiological parameters of plants in both control and salt stress treatments suggesting that ascorbic acid mitigate the negative effects of salt stress. Keywords: Ascorbic acid; Foliar spray; Morphological; Physiological; Salt stress http://dx.doi.org/10.19045/bspab.2019.80083
Highlights
Introduction major constraints responsible for lessSalinity refers to the presence of different agricultural yield in Pakistan and all over kinds of salts in soil which inhibits the the world
Juxtaposition between set-IV and set-V resulted that setIV resulted slight increase in control while a prominent increase at 60mM salt stress as juxtaposition with set-V. When both sets were juxtaposition with set-I, set-IV resulted increase and set-V results decrease in control and 60mM salt stress as juxtaposition with set-I (Table 1; Figure 1) which agrees with the earlier work of [19]
Juxtaposition between set-IV and set-V resulted that Set-IV showed increase in control and a prominent increased in 60mM salt stress as juxtaposition with set-V
Summary
Salinity refers to the presence of different agricultural yield in Pakistan and all over kinds of salts in soil which inhibits the the world. Ascorbic acid is growth regulator known to provide protection against a number of abiotic stresses [5] because it can influence a range of processes in plants, including seed germination [6] stomatal closure [7] ion uptake and transport [8] membrane permeability [9] photosynthetic and growth rate [10] It accumulates in plants under saline conditions and are known to have a vital role in salt tolerance. Results and discussion Plant height Plants of the set-I showed non-significant decrease in 100mM salt stress as compared to control. Set-II and -III, showed non-significant increase at 60mM salt stress as compared to control. Set-IV resulted non-significant decrease in saline media as compared to control it was more prominent in 60mM salt stress. Were juxtaposition with set-I, set-IV resulted increase and set-V results decrease in control and 60mM salt stress as juxtaposition with set-I (Table 1; Figure 1) which agrees with the earlier work of [19]
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