The Experts below are selected from a list of 22041 Experts worldwide ranked by ideXlab platform
Ali Mokhtassibidgoli - One of the best experts on this subject based on the ideXlab platform.
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Foliar Application of zinc and manganese improves seed yield and quality of safflower carthamus tinctorius l grown under water deficit stress
Industrial Crops and Products, 2009Co-Authors: Mohsen Movahhedydehnavy, Seyed Ali Mohammad Modarressanavy, Ali MokhtassibidgoliAbstract:Information regarding the effect of Foliar Application of zinc and manganese on the growth and development of safflower under water deficiency is not available. Therefore, field experiments were conducted in 2001–2002, 2002–2003 and 2004 (as the field emergence experiment) to determine agronomic traits and seed quality of safflower under above-mentioned conditions. Irrigation treatment (unstressed control, and withholding irrigation during vegetative growth, flowering and seed filling stages), safflower genotype (Zarghan 279, Varamin 295 and L.R.V.5151) and Foliar Application treatment (untreated plots, Foliar Application of water, zinc sulfate and manganese sulfate) were studied in a split factorial design with three replications, with irrigation treatment as the main plot, and factorial combination of the other two factors as the subplot. Generally there was a decrease in seed yield, total biomass, number of capitula per plant and plant height each growing season by withholding irrigation at various growth stages at all treatment combinations, especially when water deficit stress was imposed at the flowering stage. The Foliar Application of Zn, Mn and in some cases water mitigated the negative effect of water deficit stress on agronomic traits in all three genotypes. Averaged over 2001–2002 and 2002–2003, without Foliar Application, Zarghan 279 was found suitable for unstressed conditions and appeared to grapple better with water deficit stress during vegetative growth stage and L.R.V.5151 showed a better ability to recover from stress at the flowering and seed filling stages. Foliar Application of Zn and Mn increased concentration of these two elements in seed, germination rate, germination percentage, seedling dry weight and final seedling emergence, and water deficit stress had negative impacts on most these parameters. All treatments had significant effects on proteins and the major protein fractions of safflower were the albumins (20–37 mg g−1) and globulins (15.7–36.3 mg g−1). With regard to oil content and its composition, small differences were evident between treatments. Linoleic acid and oleic acid comprised about 90% of the fatty acid composition. In general, significant relationships existed between traits. The results obtained here suggest that Foliar Zn and Mn Application can improve the seed yield and seed quality of safflower grown under drought stress.
Shihua Wang - One of the best experts on this subject based on the ideXlab platform.
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Foliar Application with nano silicon alleviates cd toxicity in rice seedlings
Environmental Science and Pollution Research, 2015Co-Authors: Shihua Wang, Fayuan WangAbstract:Nanofertilizers may be more effective than regular fertilizers in improving plant nutrition, enhancing nutrition use efficiency, and protecting plants from environmental stress. A hydroponic pot experiment was conducted to study the role of Foliar Application with 2.5 mM nano-silicon in alleviating Cd stress in rice seedlings (Oryza sativa L. cv Youyou 128) grown in solution added with or without 20 μM CdCl2. The results showed that Cd treatment decreased the growth and the contents of Mg, Fe, Zn, chlorophyll a, and glutathione (GSH), accompanied by a significant increase in Cd accumulation. However, Foliar Application with nano-Si improved the growth, Mg, Fe, and Zn nutrition, and the contents of chlorophyll a of the rice seedlings under Cd stress and decreased Cd accumulation and translocation of Cd from root to shoot. Cd treatment produced oxidative stress to rice seedlings indicated by a higher lipid peroxidation level (as malondialdehyde (MDA)) and higher activities of antioxidant enzymes such as superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT), and a lower GSH content. However, those nano-Si-treated plants had lower MDA but higher GSH content and different antioxidant enzyme activities, indicating a higher Cd tolerance in them. The results suggested that nano-Si Application alleviated Cd toxicity in rice by decreasing Cd accumulation, Cd partitioning in shoot and MDA level and by increasing content of some mineral elements (Mg, Fe, and Zn) and antioxidant capacity.
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Foliar Application of two silica sols reduced cadmium accumulation in rice grains
Journal of Hazardous Materials, 2009Co-Authors: Fangbai Li, Shihua Wang, Xiangdong LiAbstract:In the present study, pot experiments were conducted to investigate the effects of Foliar Application of two silica (Si) sols on the alleviation of cadmium (Cd) toxicity in contaminated soil to rice. Results showed that the Foliar Application of Si sols significantly increased the dry weight of grains (without husk) and shoots in rice grown in Cd contaminated soil, whereas the Cd concentration in the grains and shoots decreased obviously. The total accumulation of Cd in rice grains also decreased with the Application of both of the Si sols, but no significant effect was found on the Cd accumulation in the shoots. For the optimal effect, Si-sol-B should be Foliar applied at the tillering-stage during rice growth. The mechanism of Si Foliar Application to alleviate the toxicity and accumulation of Cd in grains of rice may be related to the probable Cd sequestration in the shoot cell walls.
Hui Wang - One of the best experts on this subject based on the ideXlab platform.
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Foliar Application of zn can reduce cd concentrations in rice oryza sativa l under field conditions
Environmental Science and Pollution Research, 2018Co-Authors: Hui Wang, Chao Xu, Shuai Wang, Daoyou Huang, Yangzhu Zhang, Jie Xiong, Yanbing HeAbstract:Cadmium (Cd) pollution in rice and its transfer to food chain are cause of global concern. Application of zinc (Zn) can reduce Cd uptake by plants, as both these metals are generally antagonistic in soil–plant systems. In a field experiment on Cd-contaminated acid soil, we investigated the effectiveness of Foliar Application of Zn in minimizing Cd accumulation and its effect on the content of mineral nutrient elements in rice. The treatment was done at an early grain filling stag using 0.3 and 0.5% w/v ZnSO4·7H2O solution. The spray did not affect the grain yield of rice but decreased the Cd concentration in the root, straw, husk, and brown rice to some extent and increased the Zn concentration. Foliar Application of 0.5% ZnSO4 resulted in maximum Zn concentration and minimum Cd concentration in brown rice. However, the concentrations of P, K, Ca, Mg, Cu, and Mn in brown rice were not affected. The correlation between Cd and Zn concentrations in brown rice, husk, and root was significantly negative, and that between Cd and Mn concentrations in brown rice was significantly positive. The inhibition of Cd uptake resulted in a decrease in its concentration in brown rice after the treatments. Thus, the Foliar Application of a suitable concentration of Zn at the early grain filling stage could effectively minimize the Cd concentration while enhancing the Zn concentration in brown rice on Cd-contaminated acid soil.
Mohsen Movahhedydehnavy - One of the best experts on this subject based on the ideXlab platform.
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Foliar Application of zinc and manganese improves seed yield and quality of safflower carthamus tinctorius l grown under water deficit stress
Industrial Crops and Products, 2009Co-Authors: Mohsen Movahhedydehnavy, Seyed Ali Mohammad Modarressanavy, Ali MokhtassibidgoliAbstract:Information regarding the effect of Foliar Application of zinc and manganese on the growth and development of safflower under water deficiency is not available. Therefore, field experiments were conducted in 2001–2002, 2002–2003 and 2004 (as the field emergence experiment) to determine agronomic traits and seed quality of safflower under above-mentioned conditions. Irrigation treatment (unstressed control, and withholding irrigation during vegetative growth, flowering and seed filling stages), safflower genotype (Zarghan 279, Varamin 295 and L.R.V.5151) and Foliar Application treatment (untreated plots, Foliar Application of water, zinc sulfate and manganese sulfate) were studied in a split factorial design with three replications, with irrigation treatment as the main plot, and factorial combination of the other two factors as the subplot. Generally there was a decrease in seed yield, total biomass, number of capitula per plant and plant height each growing season by withholding irrigation at various growth stages at all treatment combinations, especially when water deficit stress was imposed at the flowering stage. The Foliar Application of Zn, Mn and in some cases water mitigated the negative effect of water deficit stress on agronomic traits in all three genotypes. Averaged over 2001–2002 and 2002–2003, without Foliar Application, Zarghan 279 was found suitable for unstressed conditions and appeared to grapple better with water deficit stress during vegetative growth stage and L.R.V.5151 showed a better ability to recover from stress at the flowering and seed filling stages. Foliar Application of Zn and Mn increased concentration of these two elements in seed, germination rate, germination percentage, seedling dry weight and final seedling emergence, and water deficit stress had negative impacts on most these parameters. All treatments had significant effects on proteins and the major protein fractions of safflower were the albumins (20–37 mg g−1) and globulins (15.7–36.3 mg g−1). With regard to oil content and its composition, small differences were evident between treatments. Linoleic acid and oleic acid comprised about 90% of the fatty acid composition. In general, significant relationships existed between traits. The results obtained here suggest that Foliar Zn and Mn Application can improve the seed yield and seed quality of safflower grown under drought stress.
Xiangdong Li - One of the best experts on this subject based on the ideXlab platform.
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Foliar Application of two silica sols reduced cadmium accumulation in rice grains
Journal of Hazardous Materials, 2009Co-Authors: Fangbai Li, Shihua Wang, Xiangdong LiAbstract:In the present study, pot experiments were conducted to investigate the effects of Foliar Application of two silica (Si) sols on the alleviation of cadmium (Cd) toxicity in contaminated soil to rice. Results showed that the Foliar Application of Si sols significantly increased the dry weight of grains (without husk) and shoots in rice grown in Cd contaminated soil, whereas the Cd concentration in the grains and shoots decreased obviously. The total accumulation of Cd in rice grains also decreased with the Application of both of the Si sols, but no significant effect was found on the Cd accumulation in the shoots. For the optimal effect, Si-sol-B should be Foliar applied at the tillering-stage during rice growth. The mechanism of Si Foliar Application to alleviate the toxicity and accumulation of Cd in grains of rice may be related to the probable Cd sequestration in the shoot cell walls.