Alleviation of Salt Stress in Cucumber (Cucumis sativus) through Seed Priming with Triacontanol

Abstract

The present study elucidated the role of triacontanol in regulating seed germination and seedling vigour of four cucumber cultivars under salt stress (50 mM NaCl). Seeds were soaked in aerated solution of triacontanol @ 25 μM, 50 μM for 12 h prior to sowing and untreated seeds were used as control. Priming enhanced the emergence rate, uniformity and early growth of cucumber seedlings under normal and saline conditions. Though, plants exposed to salt stress and seeds not treated with triacontanol showed poor performance in growth, physiology and biochemical attributes. However, priming with 25 and 50 μM triacontanol was very effective in decreasing time to start emergence, improved final emergence, shoot/root lengths, seedling dry weight, gas exchange attributes, chlorophyll and proline contents under saline conditions. Nonetheless, maximum relief from salt stress in all attributes was observed at 50 μM triacontanol. In conclusion, triacontanol can be successfully employed to improve the germination capacity and stand establishment of cucumber under saline conditions by reducing the deleterious effects of salinity.

Assessment of sustainable and biodegradable agricultural substrates for eminence production of cucumber for kitchen gardening

“…Following parameters were noted including shoot and root length (cm) with measuring scale, number of leaves plant −1 , shoot fresh and dry biomass (g), and root fresh and dry biomass (g) were calculated using weight balance (Sarwar et al 2013(Sarwar et al , 2017.…”

“…Chlorophyll contents (SPAD) were measured by chlorophyll meter (Model: SPAD: 502, Minolta; Japan) with the stated procedure as reported by Sarwar et al (2017).…”

Assesment of Growth and Productivity of Cucumber (Cucumis Sativus L.) Genotypes Under Salt Stress Regime

“…Increasing salinity is threat for vegetable production, particularly in irrigated areas where 40% food of the world's is produce (Sarwar et al, 2016(Sarwar et al, , 2017. Some vegetables i.e., onions, cucumbers, tomatoes, peppers and eggplants are sensitive to salinity (Yamaguchi and Blumwald, 2005;Sarwar et al, 2017).…”

“…Increasing salinity is threat for vegetable production, particularly in irrigated areas where 40% food of the world's is produce (Sarwar et al, 2016(Sarwar et al, , 2017. Some vegetables i.e., onions, cucumbers, tomatoes, peppers and eggplants are sensitive to salinity (Yamaguchi and Blumwald, 2005;Sarwar et al, 2017). Stepien and Klobus (2006) and Sarwar et al (2018) stated that cucumber considered is an important vegetable for human nutrition and diet and it is source of vitamins and dietary fiber; it has been used for 3,000 years in its native areas of Asia and Africa (Gopalan et al, 1982).…”

“…Stepien and Klobus (2006) and Sarwar et al (2018) stated that cucumber considered is an important vegetable for human nutrition and diet and it is source of vitamins and dietary fiber; it has been used for 3,000 years in its native areas of Asia and Africa (Gopalan et al, 1982). But melicious impact of salt stress on cucumber crop caused a severe reduction in crop growth and yield (El-shraiy et al, 2011; Sarwar et al, 2016Sarwar et al, , 2017. Cucumber growth significantly affected by salinity higher than 25 mM, which caused a reduction in yield upto 13% (Chartzoulzkis, 1992;Dorota, 1997).…”