Wheat typical requirements

Little is known about field contamination by ochratoxin A. Coffee is one of the crops susceptible to ochratoxin, and contamination is often correlated to insect damage. Ochratoxin-producing Penicillium typically infest grain (especially wheat) in temperate zones. Further investigation is required to understand the factors that determine ochratoxin A contamination in coffee and in other susceptible crops. 

In hardwood plywood, the glue mix is typically formed by adding water and soft wheat flour at rather high proportions with a minor addition of filler, such as nut shell flour to the urea-formaldehyde resin. Urea-formaldehyde resins are usually shipped in 60 - 65 percent non-volatile solids form. Acid salts such as ammonium sulfate are added to increase the rate of cure of the urea-formaldehyde resin when under pressure and subsequently heated in hot presses. Some acid salts cure the urea-formaldehyde sufficiently well under ambient "cold" press conditions. It is evident this type of plywood would be oriented toward interior use such as furniture. If water-proof type bonds are required of hardwood plywood, then melamine-formaldehyde resins are used in similar mix form but with higher resin solids... 

On the other hand, colchicine s ability to induce polyploidy can solve many important problems of plant breeding. Colchicine renders infertile hybrids fertile. For example, the maximum Fuchsia species are diploid or tetraploid. The cross between diploid and tetraploid results often in a triploid, which is mostly sterile because the process of meiosis requires the pairing of similar chromosomes and due to lack of mechanism to allow the alignment of three similar chromosomes. However, colchicine treatment produces fertile hexaploid plants. Breeding of triticale from wheat and rye shows similar problem wheat is typically tetraploid and rye is diploid, with the triploid hybrid being infertile. Here also, treatment with colchicine results in fertile hexaploid triticale. 

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