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Dracaena fragrans (cornstalk dracaena), is a flowering plant species that is native plant throughout tropical Africa, from Sudan south to Mozambique, west to Côte d'Ivoire and southwest to Angola, growing in upland regions at 600–2,250 m (1,970–7,380 ft) altitude. [1] [2]
Corn grey leaf spot. Gray leaf spot Cercospora leaf spot Cercospora sorghi = Cercospora sorghi [clarification needed] Cercospora zeae-maydis [5] [6] [7] Cercospora zeina [6] [7] Helminthosporium root rot Exserohilum pedicellatum = Helminthosporium pedicellatum. Setosphaeria pedicellata [teleomorph] Hormodendrum ear rot. Cladosporium ear rot
Plant propagation in horticulture is the process by which the number of individual plants is increased. Propagation involves both sexual and asexual methods. [16] Sexual propagation uses seeds, while asexual propagation involves the division of plants, separation of tubers, corms, and bulbs using techniques such as cutting, layering, grafting. [17]
S. kunkelii, the corn stunt spiroplasma, was characterized as the causative agent of corn stunt disease by Whitcomb et al. in 1986. [19] [20] In the literature, the combination of maize bushy stunt mycoplasma and maize rayado fino marafivirus in addition to S. kunkelii has been called the corn stunt disease complex, also called "achaparramiento."
Southern corn leaf blight (SCLB) is a fungal disease of maize caused by the plant pathogen Bipolaris maydis (also known as Cochliobolus heterostrophus in its teleomorph state). The fungus is an Ascomycete and can use conidia or ascospores to infect. [ 1 ]
Plants affected later in their reproductive cycle may experience a slowing in ear development (“Maize Dwarf Mosaic Virus,” n.d.), while some plants may even become barren (Lipps & Mills, n.d.). It is not uncommon for plants to have shortened upper internodes or an increase in tiller number (“Maize Dwarf Mosaic Virus,” n.d.).
Micropropagation or tissue culture is the practice of rapidly multiplying plant stock material to produce many progeny plants, using modern plant tissue culture methods. [ 1 ] Micropropagation is used to multiply a wide variety of plants, such as those that have been genetically modified or bred through conventional plant breeding methods.
The production of multiples of plants in the absence of seeds or necessary pollinators to produce seeds. The regeneration of whole plants from plant cells that have been genetically modified. The production of plants in sterile containers allows them to be moved with greatly reduced chances of transmitting diseases, pests, and pathogens.