TY - JOUR
T1 - Differential response of sugar beet to long-term mild to severe salinity in a soil–pot culture
AU - Tahjib-Ui-Arif, Md
AU - Sohag, Abdullah Al Mamun
AU - Afrin, Sonya
AU - Bashar, Kazi Khayrul
AU - Afrin, Tania
AU - Sofi Uddin Mahamud, A. G.M.
AU - Polash, Mohammed Arif Sadik
AU - Hossain, Md Tahmeed
AU - Sohel, Md Abu Taher
AU - Brestic, Marian
AU - Murata, Yoshiyuki
N1 - Funding Information:
Funding: The research was funded by project APVV-15-0721 and NutRisk Centre No. CZ.02.1.01/0.0/0.0/16_019/0000845.
Funding Information:
The research was funded by project APVV-15-0721 and NutRisk Centre No. CZ.02.1.01/0.0/0.0/16_019/0000845. We are grateful to M. Afzal Hossain, Department of Biochemistry and Molecular Biology, Bangladesh Agricultural University, for his valuable suggestions throughout the research works. We acknowledged the support of Muzahidul Islam to help us to determine the photosynthesis-related parameters. We also acknowledged the help of Shariful Islam throughout the experiment.
Publisher Copyright:
© 2019 by the authors. Licensee MDPI, Basel, Switzerland.
PY - 2019/10
Y1 - 2019/10
N2 - Attempts to cultivate sugar beet (Beta vulgaris spp. vulgaris) in the sub-tropical saline soils are ongoing because of its excellent tolerance to salinity. However, the intrinsic adaptive physiology has not been discovered yet in the sub-tropical climatic conditions. In this study, we investigated morpho-physiological attributes, biochemical responses, and yield of sugar beet under a gradient of salinity in the soil–pot culture system to evaluate its adaptive mechanisms. Results exhibited that low and high salinity displayed a differential impact on growth, photosynthesis, and yield. Low to moderate salt stress (75 and 100 mM NaCl) showed no inhibition on growth and photosynthetic attributes. Accordingly, low salinity displayed simulative effect on chlorophyll and antioxidant enzymes activity which contributed to maintaining a balanced H2O2 accumulation and lipid peroxidation. Furthermore, relative water and proline content showed no alteration in low salinity. These factors contributed to improving the yield (tuber weight). On the contrary, 250 mM salinity showed a mostly inhibitory role on growth, photosynthesis, and yield. Collectively, our findings provide insights into the mild–moderate salt adaptation strategy in the soil culture test attributed to increased water content, elevation of photosynthetic pigment, better photosynthesis, and better management of oxidative stress. Therefore, cultivation of sugar beet in moderately saline-affected soils will ensure efficient utilization of lands.
AB - Attempts to cultivate sugar beet (Beta vulgaris spp. vulgaris) in the sub-tropical saline soils are ongoing because of its excellent tolerance to salinity. However, the intrinsic adaptive physiology has not been discovered yet in the sub-tropical climatic conditions. In this study, we investigated morpho-physiological attributes, biochemical responses, and yield of sugar beet under a gradient of salinity in the soil–pot culture system to evaluate its adaptive mechanisms. Results exhibited that low and high salinity displayed a differential impact on growth, photosynthesis, and yield. Low to moderate salt stress (75 and 100 mM NaCl) showed no inhibition on growth and photosynthetic attributes. Accordingly, low salinity displayed simulative effect on chlorophyll and antioxidant enzymes activity which contributed to maintaining a balanced H2O2 accumulation and lipid peroxidation. Furthermore, relative water and proline content showed no alteration in low salinity. These factors contributed to improving the yield (tuber weight). On the contrary, 250 mM salinity showed a mostly inhibitory role on growth, photosynthesis, and yield. Collectively, our findings provide insights into the mild–moderate salt adaptation strategy in the soil culture test attributed to increased water content, elevation of photosynthetic pigment, better photosynthesis, and better management of oxidative stress. Therefore, cultivation of sugar beet in moderately saline-affected soils will ensure efficient utilization of lands.
KW - Antioxidant enzymes
KW - Photosynthesis
KW - Reactive oxygen species
KW - Salinity
KW - Sugar beet
KW - Yield
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U2 - 10.3390/agriculture9100223
DO - 10.3390/agriculture9100223
M3 - Article
AN - SCOPUS:85074071485
VL - 9
JO - Agriculture (Switzerland)
JF - Agriculture (Switzerland)
SN - 2077-0472
IS - 10
M1 - 223
ER -