rice seedling Articles
-
Phytotoxicity of methylene blue to rice seedlings
Methylene blue is widely used in various industrial branches. Due to insufficient treatment, its occurrence in wastewater is frequently detected, which may result in serious environment problems to aquatic organisms. Hydroponic experiments were conducted with rice seedlings (Oryza sativa L. cv. XZX 45) exposed to methylene blue to determine the effective concentration using relative growth rate ...
-
Lanthanum ions intervened in enzymatic production and elimination of reactive oxygen species in leaves of rice seedlings under cadmium stress
Rare earth elements (REEs) at proper concentrations were observed to alleviate heavy metal stress. However, the potential mechanisms are not clear. Thus, the present work focused on the mechanisms of lanthanum (La) ions on the generation and elimination of reactive oxygen species (ROS) production in leaves of rice seedlings hydroponically cultivated in 30 µM cadmium chloride (CdCl2) for two ...
-
Assessing the necessity of surface-applied preplant nitrogen fertilizer in rice systems
California rice (Oryza sativa L.) growers typically use two forms of preplant N fertilizer: aqua NH3 applied 7 to 10 cm below the soil surface (subsurface N) and surface-applied N. The rational for applying about 25% of the total N rate to the surface is to provide a readily available N source for young rice seedlings; however no research has been done to verify this. On-farm field studies were ...
-
Varietal differences in the growth of rice seedlings exposed to perchlorate and their antioxidative defense mechanisms
A hydroponic experiment was conducted to investigate the perchlorate (ClO4‐) phytotoxicity in different rice varieties. Considerable variations were observed when 24 rice varieties were treated with ClO4‐. The shoot height, root length and biomass of most varieties were significantly reduced by ClO4‐. The roots were more sensitive than the shoots. Hierarchical clustering analysis demonstrated ...
-
Tissue-specific expression of rice CYP72A21 induced by auxins and herbicides
Cytochrome monooxygenase P450s (CYPs) comprise one of the largest enzyme families in plants. Some P450s are involved in xenobiotic metabolism: they confer herbicide tolerance and are induced by chemical treatments. We isolated a novel P450 cDNA, CYP72A21 (accession number, AB237166), from rice (Oryza sativa L. cv. Nipponbare) seedlings treated with a mixture of 2,4-dichlorophenoxyacetic acid ...
-
Dissipation and residues of trifloxystrobin and its metabolite in rice under field conditions
Residue analysis of trifloxystrobin and its metabolite (CGA 321113) in rice matrices, paddy water, and soil was developed using the quick, easy, cheap, effective, rugged, and safe (QuEChERS) method and high performance liquid chromatography tandem mass spectrometry (HPLC‐MS/MS). The method was used to evaluate the dissipation rate of trifloxystrobin and CGA 321113 in rice seedling, soil, and ...
-
Precautions before operating the paddy transplanter
A rice transplanter is a specialized transplanter widely used to plant rice seedlings in the paddy field. The machine can both improve the efficiency and quality of rice transplanting. However some questions are claimed by the clients when using the paddy transplanter and we found that most of the problems are caused by the unproper use of the rice planter machine. In the following, we will give ...
-
Things Should be Noticed during Operating Rice Transplanter
Start the engine in the following orders: check whether there is full of oil in the engine; open the oil circuit and then open the throttle; check the whether the clutch is separate and the gear shift level is in the neutral position; start the engine. Before planting the rice seedlings, a test should be made to check whether the machine can transplanter the rice according to the rice ...
-
Triangular transplanting pattern and split nitrogen fertilizer application increase rice yield and nitrogen fertilizer recovery
Field experiments were conducted to evaluate the effects of improved crop management (OPT) for irrigated rice (Oryza sativa L.) on grain yield and N recovery efficiency in southwestern China. In the OPT treatment, rice seedlings were transplanted in a triangular spatial pattern and the N fertilizer was split, based on the difference between the estimated total N requirement and the soil and ...
-
Toxicity of sulfate and chloride to early life‐stages of wild rice (Zizania palustris)
Despite its importance in the great lakes region of north America, wild rice (Zizania palustris) sensitivity to sulfate is not well understood. A 21‐day hydroponic experiment was performed to determine the toxicity of sulfate to wild rice seeds and seedlings. Effects of six sulfate concentrations ranging from 10 to 5,000 mg/l and of chloride salts at equivalent conductivity were evaluated to ...
-
Arsenite stress variably stimulates pro‐oxidant enzymes, anatomical deformities, photosynthetic pigment reduction and antioxidants in arsenic tolerant and sensitive rice seedlings
Contamination of arsenic (As) in rice (Oryza sativa L.) paddies and subsequent uptake by rice plants is a serious concern as rice is the staple crop for millions. Identification of As toxicity and detoxification mechanisms in paddy rice cultivars would help to reduce As‐associated risk. Arsenic tolerance and susceptibility mechanisms were investigated in two differential As accumulating rice ...
-
What raw materials can be used to produce organic fertilizer
Organic fertilizer is a kind of organic material fermented by microorganisms, such as plant residues, animal manure, organic by-products of processing industry, which can be applied to the soil to provide plant nutrition. Organic fertilizer can provide comprehensive, stable and long-term nutrient elements for plant growth, improve soil structure, improve soil buffering performance, water and ...
-
Flat die organic fertilizer granulator production line
Flat die organic fertilizer granulator production line Organic fertilizer is rich in organic matter and nutrients. It can not only directly provide nutrients for crops, but also activate potential nutrients in soil, enhance microbial activity and promote material transformation. The application of organic fertilizer can also improve soil physical and chemical properties, improve soil fertility ...
Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you