Differential response of nano zinc sulphate with other conventional sources of Zn in mitigating salinity stress in rice grown on saline-sodic soil.

Salinity considers a restricting agent for plant production in arid and semiarid regions of the world. A lysimeter experiment was carried out in the 2018–2019 growing season for faba bean in saline-sodic soil, to study the effects of different levels of nano-ZnO as a foliar application under the addition of sulfur (S) alone or combined with rice straw compost (C) on the chemical properties of the saline-sodic soil and faba bean (Vicia faba L.) productivity. The results indicated that the application of S alone or combined with C significantly increased removal sodium efficiency (RSE), exchangeable Ca, availability of nutrients (NPK), organic matter (OM), and faba bean yield as compared to control. A total yield of faba bean was increased by about 39.7% in the plots treated with the nano-ZnO foliar application at 2% as compared with the control. The decrease in soil ESP and EC under the S+C with nano-ZnO at 2 g·L−1 was 44.95% and 22.13% greater than the control treatment. The mixtures of S+C with nano-ZnO foliar application gave better results in increasing the plant height and total yield, especially the rate of 2% of nano-ZnO as compared to adding them individually. The experimental results concluded that the integration effect of nano-ZnO as a foliar application with organic fertilizer and sulfur as amendments to reclaim saline-sodic soil can be used as a promising strategy to improve its properties and increase the bean yield.

Effect of nano-zinc application combined with sulfur and compost on saline-sodic soil characteristics and faba bean productivity

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Assesment of Salinity Tolerance in Some Canola Cultivars using Morphophysiologic Traites and ISSR Markers

Considering the increasing trend of saline land enhancement and lack of appropriate agricultural lands, identifying salt resistant plants such as fenugreek, which is an important medicinal plant, is important. To do so, a factorial experiment was conducted in the form of randomized complete blocks design with three replications on three fenugreek landraces (Yazd, Shiraz and Hendi) and five salinity levels (0, 40, 80, 120 and 160 mM NaCl) in hydroponic culture in greenhouse of College of Agriculture, Shahrekord University. The results showed that plant height, root length, shoot dry weight, root dry weight, and number of leaves per plant was reduced with the increase of salinity level. Increasing salinity level led to an increase in the amount of Na in shoot dry matter, while the amount of Ca and K and Ca/Na and K/Na ratios were decreased. The Yazd cultivar had the highest mean plant height (20.1 cm), shoot dry weight (1.94 g per plant) and number of leaves (13.4 per plant). Whereas, Shiraz cultivar had the highest amount of Ca and K ions and also Ca/Na and K/Na ratios. Based on the results of this research, it seems that Shiraz landrace, carrying genes related to salinity tolerance could be used to improve high yielding genotypes.

The effect of salt stress on morphological characteristics and Na+, K+ and Ca+ ion contents in medicinal plant fenugreek (Trigonella foenum graecum L.) under hydroponic culture

M. Khodambashi

Papers

The effect of salt stress on morphological characteristics and Na+, K+ and Ca+ ion contents in medicinal plant fenugreek (Trigonella foenum graecum L.) under hydroponic culture