Hasinur Rahman, Shamima Sabreen, Shah Alam, Shigenao Kawai
Abstract A hydroponic experiment was conducted in a phytotron at pH 5.5 to study the effects of nickel (Ni) on the growth and composition of metal micronutrients, such as copper (Cu), iron (Fe), manganese (Mn), and zinc (Zn), of barley (Hordeum vulgare L. cv. Minorimugi). Four Ni treatments were con...
Molla Rahman Shaibur, Nobuyuki Kitajima, Reiko Sugawara, Toshihito Kondo et al.
Abstract A hydroponic experiment was conducted to observe the effect of arsenic (As) on a number of physiological and mineralogical properties of rice (Oryza sativa L. cv. Akihikari) seedlings. Seedlings were treated with 0, 6.7, 13.4 and 26.8 µmol L−1 As (0, 0.5, 1.0 and 2.0 mg As L−1) for 14 days ...
Md. Abul Kashem, Bal Ram Singh, Shigenao Kawai
We investigated the mobility and distribution of cadmium (Cd), nickel (Ni) and zinc (Zn) in four contaminated soil profiles from Bangladesh. The sources of contamination of these profiles were tannery wastes, city sewage and the wastes of pharmaceutical and paper mill factories at different location...
Molla Rahman Shaibur, Nobuyuki Kitajima, Reiko Sugawara, Toshihito Kondo et al.
Molla Rahman Shaibur, Nobuyuki Kitajima, Reiko Sugawara, Toshihito Kondo et al.
ABSTRACT The experiment was carried out to investigate the effects of arsenic (As) on the physiological and mineralogical properties of barley (Hordeum vulgare L. cv. ‘Minorimugi’). The plants were grown in nutrient solution treated with 0, 6.7, 33.5, and 67 μ M As (0, 0.5, 2.5, and 5 ppm As, respec...
Molla Rahman Shaibur, Nobuyuki Kitajima, S. M. Imamul Huq, Shigenao Kawai
Abstract The effect of additional iron (Fe) on arsenic (As) induced chlorosis in barley (Hordeum vulgare L. cv. Minorimugi) was investigated. The treatments were: (1) 0 μmol L−1 As + 10 μmol L−1 Fe3+ (control), (2) 33.5 μmol L−1 As + 10 μmol L−1 Fe3+ (As-treated) and (3) 33.5 μmol L−1 As + 50 μmol L...
Shah Alam, Fumihito Akiha, Shigeru Kamei, S. M. Imamul Huq et al.
ABSTRACT Manganese (Mn) toxicity and potassium (K) deficiency are the major factors that limit plant growth and development in acid soils. The objective of this study was to assess the role of high K on the alleviation of Mn toxicity in barley (Hordeum vulgare L. cv. ‘Minorimugi’) grown in a phytotr...
Shah Alam, S. M. Imamul Huq, Shigenao Kawai, Aminul Islam
A greenhouse experiment was conducted with 3 coastal saline soils, viz. Ramgati (Aeric Fluvaquent), Nalchiti (Aeric Haplaquept), and Jhalakati (Typic Haplaquept), representing 3 salinity levels. Calcium (Ca) salts in the form of nitrate, chloride, sulfate, and phosphate (dibasic) were added to maint...
Md. Abul Kashem, Bal Ram Singh, S. M. Imamul Huq, Shigenao Kawai
Molla Rahman Shaibur, Nobuyuki Kitajima, Reiko Sugawara, Toshihito Kondo et al.
Abstract A hydroponic experiment with barley seedlings (Hordeum vulgare L. cv. Minorimugi) grown in iron (Fe)-depleted medium in the presence of added arsenic (As) at the rates of 0, 0.67, 6.7 and 67 µmol L−1 (equivalent to 0, 0.05, 0.5 and 5 mg L−1 As, respectively) showed that increasing the As co...
Md. Abul Kashem, Shigenao Kawai, Nobutoshi Kikuchi, Hideko Takahashi et al.
Molla Rahman Shaibur, K. Sera, Shigenao Kawai
By using Particle-Induced X-ray Emission (PIXE) technique, the effect of arsenic (As) on the mineral contents and translocation in the xylem of rice (Oryza sativa L. cv. ‘Akihikari’) was studied. The results suggest that exogenous As increased the concentrations of phosphorus (P), calcium (Ca) magne...
Molla Rahman Shaibur, S. M. Imamul Huq, Shigenao Kawai
Molla Rahman Shaibur, Shigenao Kawai
An experiment was carried out hydroponically to investigate the arsenic (As) toxicity in rice (Oryza sativa L. cv. Akitakomachi) seedlings in presence of Fe3+-EDTA. The As treatments (NaAsO2) were 0, 6.7, 13.4, 26.8, and 33.5 ?M for 14 days. The whitish chlorotic symptom was pronounced in the fully ...
Shah Alam, M. Hasinur Rahman, Shigeru Kamei, Shigenao Kawai
Abstract Barley plants were grown hydroponically at two levels of K (3.0 and 30 mm) and Fe (1.0 and 10 μm) in the presence of excess Mn (25 μm) for 14 d in a phytotron. Plants grown under adequate K level (3.0 mm) were characterized by brown spots on old leaves, desiccation of old leaves, interveina...