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Hybrid seeds planted by the farmer produce similar plants, but the seeds of the next generation from those hybrids will not consistently have the desired characteristics because of genetic assortment. It is therefore rarely desirable to save the seeds from hybrid plants to start the next crop. [4]
A genetically modified tomato, or transgenic tomato, is a tomato that has had its genes modified, using genetic engineering. The first trial genetically modified food was a tomato engineered to have a longer shelf life (the Flavr Savr ), which was on the market briefly beginning on May 21, 1994. [ 1 ]
Apomixis (self-cloning), where seeds are produced asexually and the new plant is genetically identical to its parent; The mode of reproduction of a crop determines its genetic composition, which, in turn, is the deciding factor to develop suitable breeding and selection methods. Knowledge of mode of reproduction is also essential for its ...
One example is a glyphosate-resistant rice crop that crossbreeds with a weedy relative, giving the weed a competitive advantage. The transgenic hybrid had higher rates of photosynthesis, more shoots and flowers, and more seeds than the non-transgenic hybrids. [250] This demonstrates the possibility of ecosystem damage by GM crop usage.
Tomatoes contain seeds and are therefore a fruit. Technically, the part of the plant that bears seeds for reproduction is a fruit. The other parts of the plant, like the root, leaves and stems are ...
The hybridization (biology) of tomato cultivars was introduced in 1945 to provide gardeners, chefs and food industries with high quality, disease resistant and flavorful tomatoes. [6] The hybrid plant Celebrity tomato was first produced in USA by Colen Wyatt who was a vegetable breeder in the late 20th century. [ 7 ]
With more than 10,000 varieties, there’s a tomato for every taste, from big, juicy slicers to sweet little cherry-sized beauties. And, no matter the type, learning how to grow tomatoes really ...
Hybrid incompatibility occurs when the offspring of two closely related species are not viable or suffer from infertility. Charles Darwin posited that hybrid incompatibility is not a product of natural selection, stating that the phenomenon is an outcome of the hybridizing species diverging, rather than something that is directly acted upon by selective pressures. [4]
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