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  • Locust and Spodoptera frugiperda killer DDVP insecticide 100g/l EC, Dichlorvos cas 62-73-7

    Locust and Spodoptera frugiperda killer DDVP insecticide 100g/l EC, Dichlorvos cas 62-73-7

    Active ingredient Dichlorvos Classification Insecticide / Agrochemical Formulation 98% Tech, 77.5% EC, 25% EC, 1000g/l EC, 500g/l EC,  100g/l EC Biochemistry Cholinesterase inhibitor.  Mode of action Insecticide and acaricide with respiratory, contact, and stomach action. Gives rapid knockdown. Usage Control of household and public health insect pests, e.g. flies, mosquitoes, cockroaches, bedbugs, ants, etc.; stored-product pests in warehouses, storerooms, etc.; flies and midges in animal houses; sciarid and phorid flies in mushrooms; sucking and chewing insects, and spider mites in a wide range of crops, including fruit, vines, vegetables, ornamentals, tea, rice, cotton, hops, glasshouse crops, etc. Also used as a veterinary anthelmintic. Certificate of quality DDVP 1000g/L EC Item  Specification Appearance Light yellow transparent Liquid A.I. Content ≥1000g/L Acidity (as H2SO4) ≤0.2% Water contet ≤0.1% Stability of the emulsion FAO Standard Certificate of qua...

  • Organic Acid

    Good quality and competitive price product, cas 64-18-6 formic acid 90%

      Product Name   Formic Acid   Assay   90%   CAS NO   64-18-6   MF   HCOOH   Dangerous Goods Class   8   Classification   Carboxylic acid Formic acid is one of the basic organic chemical raw materials, widely used in pesticides, leather, dyes, medicine and rubber industries. Formic acid is directly used in fabric processing, tanning, textile printing and silage storage, as well as metal surface treatment agents, rubber additives and industrial solvents. (1) Pharmaceutical industry: caffeine, dipyrone, vitamins. (2) Pesticide industry: triazole, triazophos (3) Chemical industry: calcium formate, ammonium formate, potassium formate, ethyl formate, cesium formate, formamide, rubber anti-aging agent, pentaerythritol, neopentyl glycol, epoxidized soybean oil, epoxidized soybean octyl ester, special Valeryl chloride, paint stripper, phenolic resin, pickled steel, and the like. (4) Leather indu...

  • Herbicide Glyphosate 41%(480 g/L) AM SL in stock

    Herbicide Glyphosate 41%(480 g/L) AM SL in stock

      Product Name    Glyphosate   Function    Herbicide   CAS No    1071-83-6   Purity     480g/L  41%   Type    Liquid     Non-selective systemic herbicide absorbed by the foliage with rapid translocation throughout the \plant and inactivated on contact with soil. Control of annual and perennial grasses and broad-leaved weeds pre-harvest in cereals peas beans oilseed rape flax mustard stubble and post-planting /pre-emergence of many crops; as a directed spray in vines olives orchards pasture forestry and industrial weed control.     Glyphosate 41%(480 g/L) AM SL  packing:  200 L/Drum; 20 L/Drum; 5 L/Drum; 1 L/Bottle   Port Shanghai   Lead Time 5~ 15 days after payment     1. Reply within 12 hours. 2. High-quality products and the most reasonable price 3. Data and chemical technology support. 4. Professional team service 5. Customiszed production for ...

  • Herbicide Glyphosate 41%(480 g/L) IPA SL in stock

    Herbicide Glyphosate 41%(480 g/L) IPA SL in stock

      Product Name    Glyphosate   Function    Herbicide   CAS No    1071-83-6   Purity     480g/L  41%   Type    Liquid   Non-selective systemic herbicide absorbed by the foliage with rapid translocation throughout the \plant and inactivated on contact with soil. Control of annual and perennial grasses and broad-leaved weeds pre-harvest in cereals peas beans oilseed rape flax mustard stubble and post-planting /pre-emergence of many crops; as a directed spray in vines olives orchards pasture forestry and industrial weed control.     Glyphosate 41%(480 g/L) IPA SL  packing:  200 L/Drum; 20 L/Drum; 5 L/Drum; 1 L/Bottle   Port Shanghai   Lead Time 5~ 15 days after payment     1. Reply within 12 hours. 2. High-quality products and the most reasonable price 3. Data and chemical technology support. 4. Professional team service 5. Customiszed production for differ...

  • Fungicides

    Good quality and competitive price product PGR fertilazer and fungicide, GA3 20% SP,cas 77-06-5

    Product name Gibberellic Acid GA3 Plant Growth Regulator CAS NO. 77-06-5 MF C19H22O6 Classification Plant growth regulator / agrochemical HS NO. 2932290012 Specs 90%TC, 10%SP, 20%SP, 40%SP Apperance White Crysstalline Powder Gibberellic acid is a broad spectrum plant growth regulator, which can promote the growth and development of crops, improve their yield and quality.It can break the dormancy of seed, tuber and bulb and promote germination.Reduce the shedding of buds, flowers, bells and fruits, improve the fruit yield or form seedless fruits.It can also make certain 2-year plants bloom in the same year. GA3  20% SP  packing: 1kg/Aluminum Foil Bag, 20kg/drum, 25kg/drum    Port Shanghai   Lead Time 5~ 15 days after payment     1. Reply within 12 hours. 2. High-quality products and the most reasonable price 3. Data and chemical technology support. 4. Professional team service 5. Customiszed production for different package 6. No delay on shipment &nbs...

  • Herbicide

    Butachlor 500 g/L EC, cas 23184-66-9

    Be used in pre-emergence for the control of annual grasses and certain broad-leaved weeds in rice, both seeded and transplanted. It shows selectivity in barley, cotton, peanuts, sugar beet, wheat and several crops. Effective rates range from 1.0-4.5 kg a.i./ha. Activity is dependent on water availability such as rainfall following treatment, overhead irrigation or applications to standing water as in rice culture.

latest news

CAC 2020

CAC 2020

Introduction 20th China International Agrochemical and Crop Protection Exhibition (CAC2019) was successfully held in Shanghai New International Expo Centre on 5th-7th March, 2019, with 20th ...

Cereal is much more drought-tolerant than other plants
2018-05-17

Whether barley, wheat, maize or rice: The grass family includes all the major cereals. They are vital for feeding the world’s population. Farmers produce 80 percent of all plant-based foods from grass crops. This success is due in part to the plants’ ability to adjust more quickly to dry conditions and sustain lack of water better than other plants.

But why are grasses more tolerant to water scarcity? Can other food crops be bred for this property, too, to assure or boost agricultural yields in the future? This could be important in the face of a growing world population and climate change that will entail more periods of dry and hot weather.

The plant researchers Professor Rainer Hedrich, Professor Dietmar Geiger and Dr. Peter Ache from Julius-Maximilians-Universität Würzburg (JMU) in Bavaria, Germany, are looking into these questions. They studied brewing barley to determine why grasses are more stress-tolerant and are therefore “better” crop plants than potatoes and the likes.

Two amino acids make the difference

The scientists discovered that this difference can be attributed to the protein SLAC1 of the guard cells. Just two amino acids, the building blocks that make up proteins, are responsible for the plant’s drought tolerance. “We now want to find out whether this small difference can be harnessed to make potatoes, tomatoes or rapeseed more tolerant to stress as well,” says Rainer Hedrich.

The new insights have been published in the prestigious journal “Current Biology” where Hedrich, Geiger and Ache describe how they pinpointed the tiny difference between grasses and other plants.

Ion transport is a key process

The JMU researchers began scrutinising microscopically small leaf pores called stomata. These openings admit carbon dioxide for photosynthesis into the plant. But they also serve as outlets for water. To prevent losing too much water through evaporation, land plants have learned during evolution to actively open and close their stomata using special guard cells. Membrane proteins such as SLAC1 play a key role in this regulatory process: acting like channels, they guide ions into and out of the cells.

Hedrich is convinced that a basic understanding of the molecular goings-on during ion transport through the plasma membrane of the guard cells is the key to improving the drought tolerance and yields of agricultural crop plants.

Ion shuttles make leaf pores more efficient

The stomata of grasses have a special feature. The pore is bordered by two pairs of cells where other plants only have a single cell pair. Grass cereals boast two dumbbell-shaped guard cells that form and regulate the pore. Additionally, they are flanked by two subsidiary cells.

The JMU researchers have demonstrated that the subsidiary cells absorb and store the potassium and chloride from the guard cells when the pore closes. When the stoma opens, they pass the ions back to the guard cells. “Our cereals use the subsidiary cells as a dynamic reservoir for osmotically active ions. This ion shuttle service between guard cell and subsidiary cell allows the plant to regulate the pores particularly efficiently and quickly,” Dietmar Geiger explains.

Two measuring systems for more drought resistance

There is a second mechanism that makes grasses more tolerant to dry conditions. When water is scarce, plants produce the stress hormone ABA (abscisic acid). Inside the guard cells, it activates the ion channels of the SLAC1 family, thereby initiating the closing of the stomata to prevent the plant from withering within a matter of minutes.

“Interestingly, we found that nitrate must be present in brewing barley and other grass cereals in addition to ABA to enable the pore to close,” Peter Ache says. The nitrate concentration allows the barley to measure the shape the photosynthesis is in. If it works smoothly, nitrate levels are low.

Barley hence relies on two measuring systems: It uses ABA to register water availability and nitrate to assess photosynthesis performance. “By combining the two, the barley is better able than other plants to negotiate between the extremes of ‘dying of hunger’ and ‘dying of thirst’ when facing water scarcity,” Rainer Hedrich explains

Testing the nitrate sensor in other plants

Which mechanism is responsible for the difference in stoma regulation at the molecular level? To answer this, the researchers analysed SLAC1 channels of various herbaceous plants compared to grasses. This allowed them to identify the “nitrate sensor” of the grasses. It is comprised of a motif of two amino acids which first occurred in moss during evolution and was subsequently further optimised to give the guard cells their unique properties.

In a next step, the team of researchers wants to establish whether herbaceous agricultural crops also benefit from having a nitrate sensor. To achieve this, the scientists want to fit arabidopsis plants that lack the SLAC1 channel with the SLAC1 channel of barley. “If this step increases their stress tolerance, we can consider breeding optimised potatoes, tomatoes or rapeseed,” Hedrich says.

Financed in the BayKlimaFit programme

The research activities were undertaken within the scope of the Bavarian BayKlimaFit consortium. Its goal is to find strategies to make food crops fit for climate change. The consortium receives funding from the Bavarian State Ministry of the Environment and Consumer Protection.

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