排序方式: 共有7条查询结果,搜索用时 15 毫秒
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Azita Khorsandi Dai Shi Andrea K. Stone Aarti Bhagwat Yuping Lu Caishuang Xu Prem Prakash Das Brittany Polley Leonid Akhov Jessica Gerein Xiumei Han Pankaj Bhowmik L. Irina Zaharia James D. House Nandhakishore Rajagopalan Takuji Tanaka Darren R. Korber Michael T. Nickerson 《Cereal Chemistry》2024,101(1):131-143
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F. Khorsandi 《Journal of plant nutrition》2013,36(9):1611-1623
An attempt was made to study the effects of sulfuric acid additions to iron (Fe)‐ and phosphorus (P)‐deficient calcareous soils. Several greenhouse experiments were conducted with sorghum (Sorghum bicolor L.) grown in two calcareous soils. Addition of sulfuric acid to soils increased soil acidity, salinity, DTPA‐extractable Fe, available P (NaHCO3‐extractable), and crop yield. The change in soil pH is the primary cause of increased nutrient availability and thus crop yield. Leaching after acid application is highly beneficial in decreasing salinity during germination and seedling stages and therefore has a direct impact on the yield. The beneficial effects of acid carried over for at least two greenhouse cropping seasons (approximately 4.5 months). 相似文献
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Prediction of potentially mineralizable N as an important N pool from soil amidohydrolases was investigated. Composite soil samples were collected from plots of a field experiment in which 0, 50 and 100 Mg cow manure ha−1 year−1 had been applied for five consecutive years. The soils were treated with corn shoots or roots or remained untreated in a factorial combination with the manure treatments, with three replications. The mineralized inorganic N was measured periodically in 20-week incubations and potentially mineralizable N (N0) was calculated based on a first-order kinetic model. Urease, l-glutaminase and l-asparaginase activities were measured before and after incubation. The values of N0 ranged from 208.6 in the controls to 388.4 in soils that had received 50 Mg ha−1 year−1 of cow manure and were amended with corn shoots. Corn residue amendment in the manure treated soils, increased the values of N0 or changed the N mineralization kinetic pattern from a first-order to a zero-order model. According to a relative sensitivity index, l-asparaginase was the most sensitive enzyme to the treatments. Multiple regression analysis revealed that 92% of N0 variations can be described by the activities of urease and l-asparaginase and therefore the soil amidohydrolase activities have the potential to evaluate potentially mineralizable N. 相似文献
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Differential salt sensitivity during growth stages and reproductive compensation of plants after salt stress relief are important factors for adopting appropriate irrigation strategies with saline waters. Consequently, recovery of cotton after exposure to different levels of salt stress was evaluated. An outdoor, sand culture experiment was conducted with cotton. Water salinities were 2, 10 and 20 dS m−1 , and the growth phases were vegetative (G1), reproductive (G2) and boll development (G3). G1 and G3 were the least and the most salt tolerant phases, respectively. The significant yield reduction in all of the saline water treatments as compared to control was mainly due to the reduction in number of bolls per plants. In general, cotton plants were capable of producing seed cotton under salt stress, as well as, after salt stress relief. However, as the salt stress severity increased the ability of cotton to compensate yield loss decreased. Irrigation of cotton at G1 stage with either moderate (10 dS m−1 ) or high (20 dS m−1 ) salinity waters should be avoided. Moderate saline water could be applied either at G2 or G3 stage. High salinity water can be used for irrigation only at G3 stage to produce acceptable cotton seed yield. 相似文献
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Mehdi Basaki Kamran Keykavusi Nazila Sahraiy Amir Ali Shahbazfar 《Journal of animal physiology and animal nutrition》2021,105(6):1127-1135
Ferroptosis is a form of cell death associated with iron-dependent lipid peroxidation. We used a chicken embryo model to investigate if ferroptosis was implicated in the molecular mechanism underlying the potential effects of maternal exposure to iron oxide nanoparticles (IONPs) on the developing brain. One hundred and eighty fertilized eggs were randomly divided into six groups (30 eggs/group; 10 eggs/replicate). Groups I and II received maghemite (γ-Fe2O3) NPs (MGMNPs), while groups III and IV received magnetite (Fe3O4) NPs (MGTNPs). Both MGMNP and MGTNP were administrated at the concentrations of 100 and 250 ppm. One group (placebo) received saline, and the other remained untreated (control). The compounds were given by in ovo method (0.3 ml/egg) only once on the first day of the embryonic period. Samples from cerebral tissue were collected on day 20 for histopathological, biochemical and gene expression analyses. Total antioxidant capacity (TAC) and malondialdehyde (MDA) increased; glutathione peroxidase (GPX) expression and activity decreased in IONPs-treated groups. Ferroptotic cells appeared in the cerebral tissue following exposure to the low dose of MGMNP and MGTNP. Oxidative stress and ferroptotic cells were more evident for MGMNP compared to MGTNP. The low dose of MGMNP and MGTNP induced more severe oxidative stress in the cerebral tissue. According to the results, maternal exposure to IONPs is associated with ferroptosis in the brain. This work could encourage future researches to investigate inhibitors of ferroptosis as a protective strategy against iron-induced cell injuries and cell death. 相似文献
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