Residual effects of biochar on improving growth, physiology and yield of wheat under salt stress

Akhtar, Saqib Saleem; Andersen, Mathias Neumann; Liu, Fulai

doi:10.1016/j.agwat.2015.04.010

Cited by 319 publications

(204 citation statements)

References 62 publications

Supporting

Mentioning

177

Contrasting

Unclassified

Order By: Relevance

“…Salinity causes cellular dehydration and further induces increased solute concentration in plants, thereby increasing the osmotic potential and leading to ion toxicity (Sosa, Llanes, Reinoso, Reginato, & Luna, ; Akhtar, Andersen, & Liu, ). Growth and yield decreased significantly under saline irrigation in the present study (Figure ), also demonstrated previously by Yang et al.…”

Section: Discussionmentioning

confidence: 99%

“…Accumulation of ABA in plants has been widely reported under salinity stress (Akhtar et al., ; Amjad et al., ). Similarly, our results indicate that leaf ABA concentration was significantly increased in saline irrigation.…”

Section: Discussionmentioning

confidence: 99%

“…An increased leaf ABA concentration resulted in stomatal closure leading to reduce transpiration, which consequently enhances plant water status (Akhtar et al., ). This can be noticed from the negative correlation of leaf ABA with g s (Figure b) and the positive correlation of leaf ABA with Ψ leaf (Figure c).…”

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

Saponin seed priming improves salt tolerance in quinoa

Yang

Akhtar

Iqbal

et al. 2017

J Agronomy Crop Science

View full text Add to dashboard Cite

Quinoa (Chenopodium quinoa Willd.) is a facultative halophyte of great value, andWorld Health Organization has selected this crop, which may assure future food and nutritional security under changing climate scenarios. However, germination is the main critical stage of quinoa plant phenology affected by salinity. Therefore, two experiments were conducted to improve its performance under salinity by use of saponin seed priming. Seeds of cv. Titicaca were primed in seven different solutions with varying saponin concentrations (i.e. 0%, 0.5%, 2%, 5%, 10%, 15%, 25% and 35%), and then, performances of primed seeds were evaluated based on mean germination time and final germination percentage in germination assays (0 and 400 mM NaCl stress). Saponin solutions of 10%, 15% and 25% concentration were found most effective priming tools for alleviating adverse effects of salt stress during seed germination. Performances of these primed seeds were further evaluated in pot study. At six-leaf stage, plants were irrigated with saline water having either 0 or 400 mM NaCl. The results indicated that saline irrigation significantly decreased the growth, physiology and yield of quinoa, whereas saponin priming found operative in mitigating the negative effects of salt stress. Improved growth, physiology and yield performance were linked with low ABA concentration, better plant water (osmotic and water potential) and gas relations (leaf photosynthetic rate, stomatal conductance), low Na + and high K + contents in leaves. Our results suggest that saponin priming could be used as an easy-operated and cost-effective technology for sustaining quinoa crop growth on salt-affected soils.Chenopodium quinoa, halophyte, priming, salinity, saponin | INTRODUCTIONSalinity is one of the major threats to crop production, especially in arid and semi-arid regions of the world (Schleiff, 2008). According to an estimate, 1,128 Mha land of the world is affected by salinity or sodicity (Wicke, et al., 2011), including 100 Mha has turned to saline due to use of brackish irrigations (FAO, 2008).Different approaches have been used to cope with salinity stress, but the easiest and most sustainable option to counter salinity stress is to cultivate halophytic crops like quinoa (Chenopodium quinoa Willd.) in such conditions. Halophytes grow optimally even at high salt concentrations (100-200 mM NaCl for dicots and 50 mM for monocots) (Flowers & Colmer, 2008). Quinoa is gaining increased attention by scientists to feed the world's burgeoning population because of its high potential as a human food source, caused by its high tolerance to abiotic stresses (salinity, drought and frost) and its nutritional quality (Jacobsen, Mujica, & Jensen, 2003;Adolf, Jacobsen, & Shabala, 2013).Halophytes are tolerant to excess salts but high concentrations of salts affect germination in both glycophytes and halophytes Quinoa also contains saponins especially concentrated in seed hull (Szakiel, Paczkowski, & Henry, 2011) and give bitter taste. The hull could be considere...

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Saponin seed priming improves salt tolerance in quinoa

Yang

Akhtar

Iqbal

et al. 2017

J Agronomy Crop Science

View full text Add to dashboard Cite

show abstract

“…Moreover, biochar can hold large amounts of water, thereby improving the water‐holding capacity of soil . A number of studies under normal conditions report improvement in plant growth by biochar amendment . The data are limited, but a few investigations have found that biochar application mitigates the negative impact of drought stress on plant growth .…”

Section: Introductionmentioning

confidence: 99%

Synergistic use of biochar, compost and plant growth‐promoting rhizobacteria for enhancing cucumber growth under water deficit conditions

et al. 2017

View full text Add to dashboard Cite

show abstract

“…Digestate combined with biochar was found to be more effective under both irrigation water treatments compared to other treatments that received NPK fertilizer. Generally, the saline irrigation treatment caused a reduction in yield, this reduction has been attributed to reduced water availability, as [25] found in their experiment. The application of biochar with digestate amendment increased the yield and WUE under both irrigation water treatments (SL0 and SL1).…”

Section: Discussionmentioning

confidence: 52%

Effect of Digestate and Biochar Amendments on Photosynthesis Rate, Growth Parameters, Water Use Efficiency and Yield of Chinese Melon (Cucumis melo L.) under Saline Irrigation

et al. 2018

View full text Add to dashboard Cite

Abstract:Despite the recent interest in biochar and digestate as soil amendments for improving soil quality and increasing crop production, there is inadequate knowledge of the effect of the combination of biochar and digestate, particularly under saline irrigation conditions. A pot experiment with Chinese melon was conducted in a greenhouse, biochar (5%) and digestate (500 mL/pot) were used with and without the recommended mineral NPK (Nitrogen, Phosphorus and Potassium) fertilizer dose (120-150-150 Kg ha −1 ). The plants were irrigated with tap water (SL0) and 2 dS/m (SL1) NaCl solution. The growth, photosynthesis rate, water use efficiency (WUE) and yield of Chinese melon were affected positively when biochar was combined with digestate amendment, particularly under saline irrigation water with and without mineral NPK fertilizer. The maximum yield under normal water was obtained by digestate (SL0: 218.87 t ha −1 ) and biochar amendment combined with digestate (SL1: 118.8 t ha −1 ) under saline water. The maximum WUE values were noticed with the biochar and digestate combination under all water treatments (SL0: 32.2 t ha −1 mm −1 and SL1: 19.6 t ha −1 mm −1 ). It was concluded that digestate alone was more effective than the use of biochar, particularly with normal water. The combination of biochar with digestate had a significant effect on the Chinese melon growth, photosynthesis rate, water use efficiency and yield under saline irrigation, and it can be used as an alternative fertilizer for mineral NPK fertilizer.

show abstract

Residual effects of biochar on improving growth, physiology and yield of wheat under salt stress

Cited by 319 publications

References 62 publications

Saponin seed priming improves salt tolerance in quinoa

Saponin seed priming improves salt tolerance in quinoa

Synergistic use of biochar, compost and plant growth‐promoting rhizobacteria for enhancing cucumber growth under water deficit conditions

Effect of Digestate and Biochar Amendments on Photosynthesis Rate, Growth Parameters, Water Use Efficiency and Yield of Chinese Melon (Cucumis melo L.) under Saline Irrigation

Contact Info

Product

Resources

About