Corn - Science topic

Hi,

I am looking for free data sets for prices of crops (corn, soybeans, etc.) in USA for the last 10-20 years. We need to test some new algorithms.

Thank you for the help

The first 1/3 of the leaf (near the stem), the middle 1/3 of the leaf, the last 1/3 of the leaf

Monocot: Corn

Dicot: bean

I've obtained a fatty acid profile of broiler diet comprised of SFA 48 to 93%, MUFA (22 to 40%), PUFA (non determined to 10.4%. The PUFA composition is mainly n-6 and almost no value for n-3. The inclusion of corn and soybean meal was high, around 40-53% for each dietary treatment, and it has been proven in all research articles that corn and soybean are rich in PUFA. Since corn and soybean meal are the major constituent in my formulation, apart from palm oil (3%), palm kernel meal (3%), pollard (5%), and fish meal (5%), Im struggling to find the best justifications for high SFA in the ingredient used. This might be due to climate changes, genetics, environment etc but there is not reported data regarding the difference of fatty acid composition from the past study related to these feedstuffs, hence, its diffcult for me to explain in literature review. Does anyone want to share any tips to solve this issue?

Sample type:

Corn leaves and stem

Bean leaves and stem

Hi everyone,

I want to ask your opinion about different ways to decrease average noise and standard deviation in our chromatograms which help us to improve selectivity and sensitivity of our LC-MS/MS and LOD and LOQ values as well.

I work on grain (mainly wheat and corn) mycotoxins in my lab, and usually after reconstituting my extracts with eluents, I keep them in fridge overnight to remove sediments.

I also use syringe filter as they have always been helpful in extraction process.

I will be more than happy to hear about your thought and other methods that you use in this way.

Warmest regards,

Nasim

Does anyone have guidance on coating 96-well plates with collagen-I? Looking for a protocol. We are using Corning® Collagen I, Rat Tail, 100 mg.

For Zea mays up to the 4-leaf stage

For Phaseolus vulgaris up to the fourth trifoliate leaf stage

Hello, everyone. When I use CICC 40553 Aspergillus niger (strain introduction can produce citric acid) to ferment corn meal and glucose, the fermentation condition is 30 ℃, 200 rpm, and the substrate concentration is 20-120 g/L. The composition of the culture medium is: the carbon source is glucose or corn flour, and the concentration range is 20-120 g/L, (NH₄)₂SO₄ 2g/L, KH₂PO₄ 2g/L. MgSO₄·7H₂O 0.5 g/L. The product detected by HPLC does not detect citric acid, or the citric acid content is very low, but a large amount of oxalic acid can be detected. Do you have any ideas to solve this problem, big shots? I need a lot of citric acid.

Dear All,

I've been working on differentiating monocytes to dendritic cells (DCs) in vitro using a 24-well TC-treated plate from Corning. Here's my current protocol: I place 2 Million PBMCs in each well, and after one day, when monocytes should be adherent, I carefully remove the supernatant and add RPMI with IL-4 and GM-CSF. After seven days, when I inspect the cells under a microscope, I observe that the Dendritics are not fully formed, and the cells appear smaller than expected. Additionally, they are not fully adherent; if I attempt to wash them, most of them detach. I also notice the presence of other immune cells, possibly alpha-beta T cells, which are similar in size.

I've attempted monocyte purification, but previous method seems to result in more dendritic cells.

Any suggestions, experiences, or recommendations on how I can optimize the purification and differentiation of my DCs would be greatly appreciated.

Thank you in advance.

in the use of spectral indices in the estimation of corn yield, why is it that when I put the average of the total index at the farm level in the equation generated from the regression, the predicted yield is closer to the actual yield even though the coefficient of determination is weak?

# spectralindices

#predictedyield

#RS

in the use of spectral indices in the estimation of corn yield, why is it that when I put the average of the total index at the farm level in the equation generated from the regression, the predicted yield is closer to the actual yield even though the coefficient of determination is weak?

# spectralindices

#predictedyield

#RS

Transplanting, a critical step in crop establishment, involves moving seedlings from a nursery to their final field location. While rice transplanting is a common practice, the feasibility of applying similar techniques to wheat and corn remains an intriguing question

For centuries, agricultural research has predominantly focused on the above-ground aspects of crop health and yield. However, recent scientific investigations have shifted attention below ground, specifically to the root systems of major cereal crops like rice, wheat, and corn. Understanding root regeneration mechanisms is critical for optimizing crop performance, nutrient utilization, and stress tolerance. In this comparative study, we explore how these three staple grains differ in terms of root architecture, regeneration capacity, and their implications for sustainable agriculture.

Can someone share the protocol of in vitro chromosome doubling of haploid corn embryo?

I oxidised pure Mg powder in an atmosphere of O2 and He, at low heating rates (between 0.5 and 1 °C/min) from 20 to 800 °C.

From microscopic observations of quenched samples, I saw that Mg, which has initialy a silver color (first picture), turns black at the beginning of the oxidation process (second picture), and then turns white (classic MgO).

This black layer looks thin, while the white oxide is like pop corn.

Any idea what could be this black layer ? I guess it's a kind of intermediate oxide species (Mg2O ?)...

The only information I found in the literature is that it could be a Mg:O phase, 80:20 in mass repartition.

Thank you,

The biomasses are coconut coir pith, corn husk and rice straw. Concentration preferably in volume by volume or weight by volume of h2o2.

the starch is a commercial sigma aldrich corn starch

hello I hope you have a good day, I am working on the expression of genes p5cr, p5cdh, prot1, prot2, and aap6 of corn plants

What primer should I use?

thanks for your guide

Using which MYCORRHIZA for low cost tropical agriculture? Or other BIOSTIMULANTS, BIOFERTILIZERS?

What specific natural plant nutrient sources or plant growth-promoting sources, such as BIOSTIMULANTS, BIOFERTILIZERS, etc., would you use for starting cultivating tropical crops like corn, sorghum, millet, peanuts, tomatoes, and onions in a middle scale production in a tropical country as Simbabwe, where chemical fertilizers are economically not afordable or either unavailable, but where some animal dung is accessible?

How economically successful is it which commercially available mycorrhiza to use or other microorganisms of the soil microbiome with similar benefits such as PGPR (plant growth-promoting rhizobacteria), PGPF (plant growth promoting fungi), PGPM (plant-growth-promoting microorganisms), as well to use seaweed, algae stimulants or verimcompost?

yes or no? why?

It is my first time visualizing roots under microscope and I am not sure if the staining procedure went well. Field-grown corn roots stored in 75% ethanol were subsampled and boiled in 10%KOH solution for 10 minutes, washed 2-3 times in tap water, and then stained by boiling in 1%ink and 5%vingear solution for 3 minutes then washed 2-3 times in tap water, mounted on slide with glycerol and viewed under microscope at 100x or larger. I am not sure if what I am seeing under microscope is arbuscules of AMF or something else.

My name is Julia, and I am a researcher at Bergen Community College. My research this Summer is concerning the most effective cultivation of huitlacoche fungus. For a little background information: I am growing four kinds of sweet corn and one popcorn variety. We are only able to get the spores in a syringe to be injected into the plants, with one website selling it suggesting that we inject at the very base of the cobs.

Thank you for taking the time, and I hope to read any responses on the subject that I can.

BOD bottles,corning flask,sacchi disk, water sampler

In the essay here (https://theloop.ecpr.eu/the-best-use-of-our-limited-resources-in-service-of-democracy/), Ramon van der Does argues that "we cannot afford to spend our time and energy collecting and explicating all adjectives that go with the word 'democracy'. We need to take our limited resources seriously; we need to focus on providing practical ways to bring power to the people."

van der Does argues that most people will have 80,000 hours of work (more or less) in their lives and that means:

(a) people not working in/on/for/from democratic theory will only have limited time to engage with democratic politics (so clear and effective advice should be provided to them)

and

(b) people who are working in/on/for/from democratic theory cannot do it all - they need to be selective due to limited resources (such as time).

I suppose an analogy would be if a people are hungry, and we know barley or rice or corn works super well at feeding people, then why look for other crops? Fix the problem first and then look for new crops.

What do you think? Is it a misuse of resources to conduct basic research on democracy whilst democracies are undergoing various crises?

Calciorthid type of soil is found in this area. The average temperature is 32 degree Celsius.

Please let me know the procedures provided by Hedge and Hofreiter, 1962, along with the calculations.

Corning Inc.: Zero Coupon Convertible Debentures Due November...

It is required for one of my Projects

We need collagen IV coated plates in order to culture primary queratinocytes. However, the usual supplier of this kind of material (Corning) is not supplying it until, at least, 2024. Does anyone know any other supplier that could serve these products as soon as possible in Spain?

I am working on a review of the mains pest management methods in sweet corn.

If you have it, please share it to me.

My research is about simulating the changes of soil organic carbon and greenhouse gas in farmland under different cropping systems (rice, corn, wheat, etc.) straw return conditions by model. The tool used is the DSSAT model, and the good news is that the just released DSSAT4.8 can perform GHG simulations. I have learned the use of the model through some courses, but there are still many questions I don’t understand.

Since no one in my group uses this model and my teacher is not very clear about it, I need to figure it all out by myself, which is very difficult. I have created several sequence files and gathered relevant weather, soil and cultivar information. However, my simulation results are very unsatisfactory and the methane emissions are zero. I am not sure what went wrong and would like to get an answer

Thank you very much for your attention to my problem

Does anyone know what the pore size of Corning® Matrigel® hESC-qualified Matrix is? I have tried searching for the information sheets of this product but to no avail and other google searches (unless I have missed it). Anyone that could help me with this?

My lab is starting a new line of iPSC culture (KOLF2.1j). The cell suppliers provide a maintenance culture protocol using StemFlex medium with RevitaCell Supplement (both Gibco) on Synthemax-II-SC Substrate (Corning) with ReLeSR (STEMCELL) for passaging. We currently maintain a different iPSC line (WTC11) in TeSR-E8 medium on Matrigel coating and use Accutase for passaging.

Do you think we will be able to use the TeSR-E8/matrigel combination for the new line? Or are different lines media/coat-specific? Will the cells be okay if I thaw them from StemFlex in to TeSR-E8? All these reagents are very expensive, and I would like to avoid buying them unnecessarily. I am the only person using iPSC cells here and I'm new to the process, so I can't ask anyone here

Hello everyone, I want to measure the chlorophyll content of a corn plant during its growth (3 months). Wich leaves of the plant do you choose for those kinds of measurements ? Do you change it over time or do you keep the same leaf from the beginning to the end ?

Thank for your answers.

I was about to do R. oryzae fermentation in 500 mL flask. The Culture medium (g l−1): corn stover hydrolysate 22·4, KH2PO4 0·6, MgSO4·7H2O 0·5, FeSO4·7H2O 0·0088, ZnSO4·7H2O 0·11, urea 2.

it was all fine until i autoclaved the medium for 15 mins, there was white insoluble precipitate.

and the fermentation was slow (72h of incubation in waterbath shaker, 100rev/min), rather than a big ball of mycelia formed, it was like cloudy small dots mycelia. I have to extract the mycelia and the amount of those cloudy dots mycelia was too small.

is there any way to solve this?

additional info: the hydrolysis of corn stover was carried by 2h of autoclaves in 2% H2SO4 with the ratio of corn stover : sulfuric acid (1:10).

after that, detoxification was done by adding 2N of Ca(OH)2 until the pH of 8, centrifuged, and the supernatant was taken to be the carbon source.

I didn't adjust the hydrolysate pH bcs when the medium is done, the overall pH was 5,6 and I thought that's a pretty ideal pH.

My DSC thermogram shows a very broad peak and an early onset temp for the pure corn starch sample thus very different from the reported literature, So I have two questions:

1) what could be the possible mistake and what do I need to change ?

2) what should be the optimal ratio of water and starch while preparing DSC Sample? I took 1:2 ratio of starch :water

3) When water in starch sample do I need to put the lid on the DSC pan or I need to run without sealing the pan ?

4) Lastly does the amount of sample taken have a impact on enthalpy or heat change since I took 10mg of the sample and someone suggested me to try with the 1 or 2 mg ?

Thanks

I identified a large population of Halyomorpha halys (Hemiptera) on corn cobs last August.

Would the dominance of one of the microbes in the gut change if we give different foods to insects or larvae? Suppose the insect is supplemented with amylase-producing bacteria, fed with carbohydrates such as rice, corn, and other sources.

Hello,

If I have a sample (corned beef) 10 g and the maximum nitrite (NO2-) it contains is 30 mg/kg, what is the maximum nitrite in µM? And how to convert it? The research I am currently doing is detecting nitrite in corned beef using a sensor because in general the preservative used is NaNO2 and the maximum for corned beef is 30 mg/kg. The standard method used for comparison refers to ISO 2918-1975. Here the file is attached.

Thank you

Hello, I wanna ask, If I have a sample (corned beef) of 10 g and the maximum nitrite (NO2-) it contains is 30 mg/kg, what is the maximum nitrite in µM? And how to convert it? The research I am currently doing is detecting nitrite in corned beef using a sensor because in general the preservative used is NaNO2 and the maximum for corned beef is 30 mg/kg. The standard method used for comparison refers to ISO 2918-1975. Based on ISO, from 10 g sample is diluted until volume total 200 mL. Here the file is attached.

Thank you

Any good source of Ostrinia nubilalis (European corn borer), preferably pupae, in or shipping to EU?

I'm curious about knowing the potential to reduce GHG / increase C sequestration across different cropland uses (for example, dairy, wheat, corn).

Have you heard of reliable and attainable targets for different agricultural commodities and locations?

And to anticipate some answers, I know that it depends on a lot of factors.

for my PhD project, I need a sample of corn to be analyzed for mycotoxins. Unfortunately, in Iran I did not find a laboratory that could detect fumonisin. can anyone help in this regards?

I need to stick HCT116 cells from suspension to coverslips for immunofluorescence. I am doing short time points so I cannot have the cells sitting on the coverslips for 20-30 minutes, I plan to fix them with formaldehyde at each time point, wash out the Formaldehyde and then find a way to get them onto coverslips. I've heard poly-L-lysine and concanavilin will not work with fixed cells. I've heard about CyGel but I'm afraid of it melting since it melts below 23 degrees C (per the manual). I've heard good things about Cell-Tak from corning. Does anyone have experience with this or any other methods - these are all the ones I am aware of.

Crop coefficients can be greater than 1.00.

Ex: Corn 1.15

Then ETa=Kc *ETo, it seems to be ETa greater than ETo.

But ETo is the evaporative power of the amosphere. is it possible to go over that value?

Corn stover is a cheaper lignocellulose that is used to produce biofuels. There are numerous methods for pretreatment of corn stover before hydrolysis. Among those, which one is the most efficient?

By grain processing machinery, i mean rice, pulses,corn, wheat

I need to conduct accelerated ageing on corn seeds, however, seeds were infested by pathogens (I observed fusarium moniliforme, Aspergillus niger and flavus), so when place in high humidity condition, promoting the infestation itself. I have tried many combination of ethanol (70%) and sodium hypochlorite (5,10, 50%) and soaking time ranging between 2-10 minutes. The results is either infection was still occurring or no germination was observed once germination test was conducted

If anyone could advise on how to properly sterilise the seed and does not affect seed accelerated ageing, it would be much appreciated.

We harvested 15 * 25 feet corn research plots in the field. Two middle rows were harvested out of 6 corn rows from a plot. I have corn grain yield in pounds (US) and want to convert that into bushels per acre yield.

I normally used Matrigel from Corning, but am told that the lead time for Corning Matrigel is 16 weeks due to the current situation. I then contacted the Thermofisher representative to see if I can try Geltrex. They are not available right now. The person told me he did not know when they are going to be available.

Does anyone here have the same experience?

Thanks!

Pretreatment of lignocellulose for anaerobic digestion of corn cob.

Ultrafiltration is one of the methods that yields high purified phytoglycogen extract from corn. However, utilizing cost-effective methods for extraction are highly-encouraged for researcher to venture. What are the methods that can affect for high yield phytoglycogen extract for corn?

I am done with masters in computational materials. I want to switch my field with quantum computing ? I need recommendations from the scientific community.

I am aware of the fact it would be difficult, but I want to listen would it be possible please share your views with pros and corns.

Thanks

Some data are in (Stuart, 2009); more recent ones ? Thank you so much !

I'm looking for a study on the utilization of cover crops or green manure in corn fields that was conducted in China. I'm curious to see how cover crops or green manure affect the SOC over there. I'd love it if someone could send me some papers or other information. My main interest are cover crop/ green manure, SOC and Corn/maize.

Thanks

Best

Deepak

Hello,

I have an Ecoinvent data base. I am unable to find some chemicals or inventory. i.e. Corn Stover, Monopotassium Phosphate, Monosodium Phosphate, Octanol, Tri-n-Octylamine etc.

How can I find such inventory flow in database?

Thanks in advance!

Is there a text book or paper that explained what happens after corn receives exogenous abscisic acid (ABA) foliar application, how it's absorbed and transferred? where does it go and what does it do? what are the mechanisms and what changes happens in the plant (up or down regulations for genes, biosynthesis pathways etc) that lead to increase root hydraulic condtivity, stomatal closure and so on?

Corn has the highest area under cultivation in Iran and more than 70% of livestock and poultry diets are based on corn grain and silage. However, in corn cultivation, water limitations and extreme temperatures are among the most challenging factors that impair the development and functioning of corn yield in most regions of the country. What are the best management strategies (affordable- farmer-friendly - eco-friendly) to mitigate drought stress impacts on corn yield? Using early maturity cultivars? plant growth promoting bacteria and microorganisms? special technologies?

Hi, I wanted to perform tube formation assay using HUVEC cells. I want to use Corning Matrigel (High protein) for the assay. As per the manufacturer's instructions, I have thawed the Matrigel at 4 degree C overnight and it looked almost liquid very next morning. I also followed the instructions to pre-cool pipette tips and tubes used for the assay. But while aliquoting in ice, the Matrigel became gel-like and was not even coming from the tip. I did not dilute the Matrigel with any media.

Any suggestions how to go ahead for aliquoting and subsequent coating of Matrigel into Ibidi micro angiogenesis plates. I have to use 10 micro L for coating but the gel-like Matrigel is making it difficult. Thanks in advance.

There is apparently a worldwide shortage (due to COVID) of these 0.4micron pore, polystyrene membrane transwells...Are there any companies that make suitable, good quality alternates as we are being given a stock date of March 2021.

Thanks

Dear network, my team and me are planning to start using 3D culture spheroids at our lab. Doing some research into how to develop these cultures I have found that most researchers use the Corning plates, however, they are currently out of stock until July. For those of you who have experience in 3D cultures, which other brands do you recommend? I am looking for alternatives that are not transparent as we are performing Luciferase assays in the plates.

Thank you so much.

Hi everyone,

I'm trying to figure out if there is a cheapier version of a cell freezer (that drops 1°C each minutes). We have the Nalgene version with isopropanol and also some Corning (in styrofoam), but my lab need to buy a lot more for a ongoing experiment. I can't believe the price of those things, especially the styrofoam version. Do you know any other alternatives (different brands) that offer the same conditions to the cells?

Let me know if do!

Thanks a lot!

Marc-Alexandre Lafrance

Master student

Infection disease research center

Quebec, Canada

I want to determine the leaf area index in field crops (corn, soybeans, quinoa, wheat, etc.) and in weeds.

We are conducting a greenhouse study to test Coal char with and without fertilizers in corn growth.

The LAI-2200C (Plant Canopy Analyzer), estimates the leaf area index (LAI), or more accurately the Foliage Area Index, by different methods (LAI‑2000 Method, Lang Method, Ellipsoidal Method, and Constrained Least Squares Method).

Which of these methods has the best application with crop plants (corn, soybeans, wheat ...)?

Is it correct to use the average LAI between the methods?

Thanks!

I’m working on an image processing project with aim of developing A method to differentiate between healthy and diseased cornea. I have images taken from SHG microscopy for the collagen bundles in the human corne. I have used GLCM and I obtained the correlation, energy, homogeneity and contrast of each image but the results are not good enough to use them as a solid evidence to classify the images. please can anyone suggest for me any other method that can be used to classify collagen bundles image that can be done witthin a short time or a method to enhance my glcm results.

Thank you in advance

I'm using corn grits with added 5% moisture, hydration for 1h before extrusion process.

The final parameters

Screw speed : 160

Feed rate: 50 r/m

Temperature profile: 40-80-120-165-175-175

Water pump rate: none

Max Pressure: 165pa

What modification needed to increase the pressure, and thus getting a more desirable extruded product ?

I burn Corn husks Sunflower husks after take analysis chemical the summation of AL2o3 with Sio2 become less than 60 .... CAN I PUT IN GEO POLYMER BRICK ?

How to analyse the qualitative and nutritive values in baby corn in the laboratory such as sugar content, starch content, carbohydrate and protein content etc.

Hi all,

Corn buntings are declining very rapidly. By that, we will figure out where their breeding site(s) are from our winter population Corn bunting. For that, we tried to use color rings/ bands, but this only give recoveries in the winter area; not in the summer.

By that, we will tag them with transmitters. For a permit, we need to show that this method by this species is a good method to refer to papers of this type of research by this species.

We couldn't find papers about this subject online by Google Scholar. Is there published research with this species you maybe know? I hope you can help us out?

Malaysia and Indonesia are large producers of palm kernel cake(PKC). It is generally used as cattle feed as it helps increase milk production. However, due to its high cellulosic content, it is not popularly used as poultry feed.

Any advice on how to improve PKC's nutritional value as poultry feed so as to reduce the imports of corn ddgs etc as poultry feed?

Hi everyone, this is my first time cultivating MRC5. I bought frozen vials from ATCC and Taiwan Bioresource Collection and Research Center (BCRC) respectively. I found that the growth of MRC5 greatly slows down and the morphology changes at PDL31.

Can anyone kindly suggest

My culture conditions is as follow.

i) Culture medium: MEM (Corning, 10-009)

ii) Serum: 10% FBS, regular, USDA approved origin (Corning, 35-010)

iii) Antibiotics: 1% Penicillin and Streptomycin (Corning, 30-002)

iv) Cultivation conditions: 37°C, 5% CO2

v) Storage: -80°C

**I've checked the amount of every components in the Corning culture media (eg: amino acids, vitamins) and they are exactly the same as the ATCC recommended culture media.

I first warmed the frozen vial at 37°C and added into fresh culture medium once the ice dissolved. Then I proceed with centrifugation (1000rpm, 5 minutes) to remove the DMSO. After that, I removed the supernatant and resuspended the pellet with fresh culture medium and incubate for at least 2-3days before the next passage.

P/S: Kindly ignore the shadow on my picture because I lost the phase annulus for the phase-contrast microscope.

Thank you so much!!

Length, volume, surface area and dry mass of corn roots treated with humic substances increased up to 13 liters per hectare and decreased with higher doses.

We know that P deficiency increases SL biosynthesis and its root exudation in maize, and also its known that SL biosynthesis and levels are higher in aboveground parts of maize under water stress and in mycorrhizal maize, but I couldnt find the exact changes in SL levels of maize roots under water stress.

I dont have access to the needed enzymes for CF hydrolysis, so I'm wondering whether I can do the hydrolysis solely with the use of acids?

Has it ever been done before?