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Pythium-induced root rot is a common crop disease. When the organism kills newly emerged or emerging seedlings, it is known as damping off, and is a very common problem in fields and greenhouses. [2] Thus there is tremendous interest in genetic host resistance, but no crop has ever developed adequate resistance to Pythium. [3]
Root rot is a condition in which anoxic conditions in the soil or potting media around the roots of a plant cause them to rot. This occurs due to excessive standing water around the roots. [ 1 ] It is found in both indoor and outdoor plants, although it is more common in indoor plants due to overwatering, heavy potting media, or containers with ...
P. noxium attacks the roots and lower trunk of trees, causing roots to rot and resulting in dieback (another term for root rot). It causes brown root rot disease, which afflicts over 200 plant species in tropical and subtropical regions. The pathogen can survive in the soil and on dead plant material for more than a decade, and the primary ...
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[2] [3] [4] Transgenic plants grown hydroponically allow the release of pharmaceutical proteins as part of the root exudate into the hydroponic medium. [ 5 ] The nutrients used in hydroponic systems can come from many different organic or inorganic sources, including fish excrement , duck manure , purchased chemical fertilizers , or artificial ...
The rhizosphere is the thin area of soil immediately surrounding the root system. It is a densely populated area in which the roots compete with invading root systems of neighboring plant species for space, water, and mineral nutrients as well as form positive and negative relationships with soil-borne microorganisms such as bacteria, fungi and insects.
Root rot is the most common cause of death for houseplants but keeping houseplants too dry ("under-watering") can also be detrimental. Plants require nitrate , phosphate , and potassium to survive, as well as micronutrients including boron , zinc , manganese , iron , copper , molybdenum , and chlorine .
Semi-Hydroponics (Semi-Hydro or S/H) was the first passive hydroponic technique utilized for orchids, originating in the early 1990s, using Lightweight Expanded Clay Aggregate (LECA) as a medium in solid-bottomed containers, into which one or two, small-diameter holes were placed in the sidewall, setting the depth of the internal reservoir.