Soil Salinity: Effect on Vegetable Crop Growth. Management Practices to Prevent and Mitigate Soil Salinization

Machado, R. M. A.; Serralheiro, Ricardo

doi:10.3390/horticulturae3020030

Cited by 987 publications

(638 citation statements)

References 73 publications

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“…Worldwide, it is estimated that every year approximately 10 million hectare of land becomes unsuitable for cultivation because of salinity (Pimentel et al., ). This rate can be accelerated by increase in sea water level by climate change, excessive use of groundwater for irrigation, increasing use of low‐quality water for irrigation and massive introduction of irrigation associated with intensive farming and poor drainage (Machado & Serralheiro, ). Most of the salinity problem is natural; however, cultivation has caused a significant amount of land to become saline because of land clearing or irrigation.…”

Section: Introductionmentioning

confidence: 99%

Seed treatment with nano‐iron (III) oxide enhances germination, seeding growth and salinity tolerance of sorghum

Maswada

Djanaguiraman

Prasad

2018

J Agronomy Crop Science

125

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In recent decades, nanoparticles have been intensively applied in agriculture. Two experiments were carried out to demonstrate the potential of nano‐iron oxide (n‐Fe2O3) as seed treatment (soaking and priming) at different concentrations (0, 10, 50, 100 and 500 mg/L) for enhancing sorghum (Sorghum bicolor (L.) Moench) germination and seedling growth under non‐stressed conditions (Experiment I), and to investigate the impacts of n‐Fe2O3 seed priming treatments (0, 10, 50, 100 and 500 mg/L) on growth, chlorophyll content, chlorophyll a fluorescence, gas exchange, water relations and lipid peroxidation under salt stress (150 mmol NaCl solution) (Experiment II). Results indicated that seed soaking with n‐Fe2O3 at 10 mg/L was the best treatment in improving speed and per cent of germination, while seed priming with n‐Fe2O3 at 50 and 100 mg/L was the most effective treatment in improving seedling (12 days old) growth. Salt stress decreased chlorophyll content, photosynthetic rate, stomatal conductance, transpiration rate, relative water content, osmotic potential and growth, along with increased lipid peroxidation. Among chlorophyll a fluorescence parameters, the photosynthetic performance index of PSII (PIABS) was the most salt‐responsive. Seed priming with n‐Fe2O3 at 500 mg/L increased sorghum growth (45 days old), through increased photosystem II efficiency, chlorophyll index, photosynthetic rate and relative water content with decreased lipid peroxidation. Overall, this study indicated that use of n‐Fe2O3 as a pre‐sowing seed treatment can enhance germination and seedling growth of sorghum and protect from negative impacts of salinity stress.

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Section: Introductionmentioning

confidence: 99%

Seed treatment with nano‐iron (III) oxide enhances germination, seeding growth and salinity tolerance of sorghum

Maswada

Djanaguiraman

Prasad

2018

J Agronomy Crop Science

125

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“…Excess sodium (Na + ) in the soil competes with Ca 2+ , K + , and other cations to reduce their availability to crops. Therefore, soils with high levels of exchangeable sodium (Na + ) may impact plant growth by dispersion of soil particles, nutrient deficiencies or imbalances, and specific toxicity to sodium sensitive plants (Machado et al 2017).…”

Section: Exchangeable Na Content Of Soilmentioning

confidence: 99%

Variation in Salinity through the Soil Profile in South Coastal Region of Bangladesh

Haque

2018

J Bangladesh Acad Sci

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The spatial variability of salt accumulation through the soil profile was studied at Latachapali union of Kalapara upazila, Patuakhali district, Bangladesh. The soil samples were collected from 30 locations covering six villages of the union: Kuakata, Malapara, Fashipara, Khajura, Mothaopara and Tajepara. Five locations were randomly selected from each village. From each location soil samples were collected from three soil depths at 0-2 cm, 2.1-4 cm and 4.1-6 cm. Electrical conductivity of top 0-2 cm soil depth was 20.49 dS/m, in 2.1-4 cm soil depth was 7.14 dS/m and in 4.1-6 cm soil depth 4.15 dS/m. The study soils were strongly acidic having pH value 4.73, 4.99 and 5.20 in 0-2, 2.1-4 and 4.1-6 cm soil depth, respectively. The highest of 8.8 Na:K ratio was found in 0-2 cm soil depth. The Na:K ratio gradually decreased with the increase of soil depth, having 6.59 in 2.1-4 cm and 5.42. in 4.1-6 cm soil depth. The results clearly reveal that the top soil is very much sensitive to salt stress. Based on the electrical conductivity and Na:K ratio the Fashipara, Kuakata and Tajepara village were found seriously affected by salinity.Journal of Bangladesh Academy of Sciences, Vol. 42, No. 1, 11-23, 2018

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“…Air yang menggenangi perakaran memiliki salinitas beragam, bahkan pada beberapa kondisi memiliki salinitas tinggi, terutama lahan yang masih dipengaruhi pasang surut air laut melalui badan -badan air / sungai. Salinitas tinggi juga dapat terjadi akibat pelarutan deposit garam di tanah, antara lain Na , dan Cl - (Kim et al, 2016;Machado & Serralheiro, 2017). Salinitas tanah, khususnya yang disebabkan oleh NaCl merupakan salah satu cekaman abiotik terkait tanah yang paling luas di dunia (Golldack et al, 2014;Lauchli & Grattan, 2007;Negrao et al, 2017).…”

Section: Pendahuluanunclassified

“…Salinitas tanah, khususnya yang disebabkan oleh NaCl merupakan salah satu cekaman abiotik terkait tanah yang paling luas di dunia (Golldack et al, 2014;Lauchli & Grattan, 2007;Negrao et al, 2017). Beberapa efek negatif dari salinitas antara lain penurunan pertumbuhan (Batool et al, 2014;Machado & Serralheiro, 2017;Hanin et al, 2016), menekan perluasan daun yang kemudian akan menurunkan laju fotosintesis dan produksi biomassa tanaman (Magdy & Mansour, 2016). Tumbuhan yang toleran terhadap kadar NaCl menerapkan serangkaian adaptasi untuk menyesuaikan diri terhadap salinitas tinggi, termasuk perubahan morfologis, fisiologis dan biokimia (Acosta-Motos et al, 2017).…”

Section: Pendahuluanunclassified

“…Salah satu fungsi kalsium adalah mempertahankan integritas membran (Jamil et al, 2012). Penurunan serapan kalsium disebabkan meningkatnya rasio Na + /Ca 2+ , yang juga berkontribusi menurunkan pertumbuhan akar (Munns, 2002;Firmansyah et al, 2016;Machado & Serralheiro, 2017). Konsentrasi K + pada jaringan tanaman terbukti mengalami penurunan ketika terpapar oleh cekaman salin (Morales et al, 2012).…”

Section: Pertumbuhan Vegetatifunclassified

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Perubahan morfologis dan anatomis kelapa sawit pada rezim air dan salinitas berbeda

Firmansyah

2018

J. AGRO

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Salinitas tinggi dan genangan dapat terjadi pada tempat dan waktu yang sama; meskipun demikian pemahaman terhadap pengaruh kedua kondisi tersebut terhadap pertumbuhan, respon morfologis, dan anatomis kelapa sawit masih sedikit. Telah dilakukan penelitian dengan mengkombinasikan 2 aras salinitas (non salin dan salin) dan tiga taraf genangan (tanpa genangan, interval genangan 2 minggu, dan interval genangan 4 minggu). Penelitian dilakukan dalam pot selama 4 bulan dengan bahan tanam kelapa sawit berumur 4 bulan. Parameter pertumbuhan dianalisis dengan analisis varian dan dilanjutkan dengan uji jarak berganda Duncan pada jenjang nyata 5%. Pengamatan visual secara langsung dan pembuatan preparat melintang akar dilakukan untuk mengetahui perubahan morfologi dan anatomi tanaman. Hasil analisis menunjukkan salinitas tinggi dan genangan konsisten menurunkan parameter pertumbuhan kelapa sawit. Salinitas tinggi dan genangan tidak secara konsisten mengubah rasio luas masing-masing jaringan penyusun akar primer, sekunder, dan tersier. Kelapa sawit membentuk pneumatophore dan saluran aerenkima pada kondisi genangan, baik non salin maupun salin. Mekanisme adaptasi terhadap genangan tersebut dapat menurunkan pengaruh negatif cekaman salinitas tinggi. High salinity and waterlogging can occur at the same place and time; however, the effects of these two conditions on growth, morphological, and anatomical responses of oil palm was not fully understood. A research had been done by combining two levels of salinity (non saline and saline) and three levels of waterlogging (without waterlogging, two-week waterlogging intervals, and four-week waterlogging intervals). The study was conducted in pots for 4 months used 4 months old oil palm planting material. The growth parameters were analyzed by analysis variance continued by Duncan multiple-range test at 5% level of convidence. The morphological and anatomical changes of plants were observed trought direct observation and root cross section. The results showed that high salinity and waterlogging consistently decreased the oil palm growth parameter. High salinity and waterlogging did not consistently change the ratio of the area of each primary, secondary, and tertiary root tissue. Palm oil formed pneumatophores and aerenchyma under both non saline and saline waterlogging. Adaptation mechanisms to these waterlogging could reduce the negative effects of high salinity stress.

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Soil Salinity: Effect on Vegetable Crop Growth. Management Practices to Prevent and Mitigate Soil Salinization

Cited by 987 publications

References 73 publications

Seed treatment with nano‐iron (III) oxide enhances germination, seeding growth and salinity tolerance of sorghum

Seed treatment with nano‐iron (III) oxide enhances germination, seeding growth and salinity tolerance of sorghum

Variation in Salinity through the Soil Profile in South Coastal Region of Bangladesh

Perubahan morfologis dan anatomis kelapa sawit pada rezim air dan salinitas berbeda

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