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Since the 1950s and early 1960s, 90% of Kentucky bluegrass seed in the United States has been produced on specialist farms in Idaho, Oregon and Washington. During the 1990s [ citation needed ] botanists began experimenting with hybrids of Poa pratensis and Texas bluegrass ( P. arachnifera ), with the goal of creating a drought and heat ...
Before European-American settlement, various cultures of Indigenous peoples of the Americas lived in the region. The pre-colonization state of the Bluegrass is poorly known, but it is thought to have been a type of savannah known as oak savanna, with open grassland containing clover, giant river cane (a type of bamboo), and scattered enormous trees, primarily bur oak, blue ash, Shumard's oak ...
Kentucky bluegrass (Poa pratensis) is the most extensively used cool-season grass used in lawns, sports fields, and golf courses in the United States. [14] Annual bluegrass ( Poa annua ) can sometimes be considered a weed.
Seeds generated by apomixis are a means of asexual reproduction, involving the formation and dispersal of seeds that do not originate from the fertilization of the embryos. Hawkweeds (Hieracium), dandelions (Taraxacum), some species of Citrus and Kentucky blue grass (Poa pratensis) all use this form of asexual reproduction.
Smooth turf (green grass) at a golf course in England.. Golf course turf is the grass covering golf courses, which is used as a playing surface in the sport of golf.The grass is usually maintained by a greenskeeper to control weeds, insects with pesticides, plant fungal diseases with fungicides and to introduce nutrients such as nitrogen fertilization.
Plant propagation is the process of plant reproduction of a species or cultivar, and it can be sexual or asexual. It can happen through the use of vegetative parts of the plants, such as leaves, stems, and roots to produce new plants or through growth from specialized vegetative plant parts.