article · Russian Journal of Plant Physiology
Soil salinity limits crop growth, but cultivating salt-affected land is increasingly necessary to meet food demands. A trial evaluated whether combining soil amendments with vitamin sprays could enhance coriander performance in saline soils. Treatments tested gypsum at 500 kg per hectare and humic acid at 20 kg per hectare, both individually and together, alongside foliar sprays of vitamin B6 at concentrations up to 300 micromolar. The combination of gypsum, humic acid, and 300 micromolar vitamin B6 produced the most substantial improvements. This treatment increased seed yield per plant by over 237 per cent, alongside notable gains in umbels and seed counts. It also lowered stress markers, including hydrogen peroxide and malondialdehyde, while elevating nitrogen, phosphorus, and potassium levels and reducing sodium accumulation. Using these soil amendments with foliar vitamin B6 presents an agronomic approach to managing coriander cultivation in saline environments.
Saline soils restrict agricultural productivity and threaten food security as demand rises. Demonstrating that readily available soil treatments and vitamin sprays can significantly counteract salt stress allows farmers to cultivate coriander on previously marginal land, preserving crop yields, improving nutrient uptake, and reducing plant damage without requiring genetic modification.
The findings offer an applied agronomic practice for coriander growers and commercial farming operations facing saline soil conditions. Because the inputs—gypsum, humic acid, and pyridoxine-HCl—are existing agricultural and chemical products, the technique appears applied and tested, sitting relatively near to farm-level use pending validation across varying commercial field conditions.
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Despite soil salinity is one of the prime abiotic stresses, exploiting the saline soils for the agricultural production will increase in the forthcoming decades to fulfill the human food requirements. Of course, the induction of crop tolerance to salt stress will share in plant growth enhancement and keeping productivity. The current study aimed to assess the influence of soil amendments (gypsum, GP and humic acid, HA) and vitamin B6 (pyridoxine-HCl), levels on growth, yield traits and bioactive compounds of coriander plants grown in salt-affected soil. GP and HA, whether individual or in combination, at a rate of 500 and 20 kg/ha, respectively, were applied under spraying of B6 at three levels of at 0.0, 150, 300 µM. The experiment was performed in a strip-plot arrangement under randomized complete blocks design using three replications. Findings illustrated the increases in umbels number/plant, umblets number/plant, seed counts/umbels, and seed yield/plant due to applying GP + HA × B6-leafy applied at 300 µM were 150.3, 117.9, 157.4, and 237.8%, respectively. GP + HA mixture with spraying 300 µM B6 possessed the lowest values of H2O2 and malondialdehyde (by 1.78 and 0.12 µmol/g FW, orderly), in relative to the control. As well, the highest significant percentages of TSS, SPC, FAA, and FProC were obtained from the combination of GP + HA mixture × 300 µM B6. Coriander plants received 300 µM B6 and amended with GP + HA mixture gave the greatest N, P and K+ and the lowest Na+ contents. Briefly, cultivating coriander plants in salty soils requires compatible agricultural practices via soil amendments plus exogenous application of vitamins. Herein, soil addition of gypsum + humic acid with foliar application of vitamin B6 could be a recommended practice in managing coriander production under saline soil conditions.
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DOI: 10.1134/s1021443724603975
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