Effect of salt stress on some morphological and biochemical characteristics of sunflower (Samsung-600)

Abstract

Salinity in the growth medium causes significant reduction in plant growth parameters like leaf area, leaf length, root and shoot dry weight etc. The present study was conducted to assess the effect of salt stress on morphological and biochemical characteristics of sunflower. The hybrid (Samsung-600) seeds were grown under normal and saline conditions. The plants were treated with different doses of sodium chloride. Salt stress significantly reduced plant height, number of leaves, fresh and dry plant weight. Salinity increased the moisture in seeds. The moisture percentage increased with increase in NaCl treatment. Salt stress increased the ash contents in the seeds. Similarly, salinity stress considerably increased the accumulation of proteins contents and fats in the seeds but caused reduction in crude fibers percentage. Carbohydrates also showed a decreased tendency with increase in NaCl concentration.

Morphological and biochemical changes in response to salinity in sunflower (Helianthus annus L.) cultivars

“…(Table 2). Adverse effects of salt stress on leaf area of sunflower have also been reported by several authors (Rivelli et al, 2010;Achakzai et al, 2015;Khan et al, 2016).…”

“…However, it was reported that one of the reasons of dry matter decrease in sunflower cultivars was salt stress (Rivelli et al, 2010;Maia et al, 2016;Khan et al, 2016). The highest water content was observed in the cv.…”

Effect of salt stress on the biochemical characteristics of selected wheat varieties

“…12.3%, whereas control showed 7%. The result is in agreement to those of [11] in that respect that they performed an experiment of salinity stress against Lycopersicon esculentum Mill. Their result showed that Increasing of salinity resulted in increasing of soluble proteins in stem and leaf.…”

Effects of sodium chloride on the growth parameters of Brassica campestris

“…In several regions of the world, salinity stress may occur due to Na + and Clwhich may be greater than those of other salts present in the soil or water [14]. Salinity showed significant reduction at different stage of the species of Ocimum basilicum, petroselinum hortense, sweet marjoram and thymus maroccanus [15,16].…”