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of the parent plants. Crossing any particular pair of inbred strains may or may not result in superior offspring. The parent strains used are therefore carefully chosen so as to achieve the uniformity that comes from the uniformity of the parents, and the superior performance that comes from
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Hybrid seeds planted by the farmer produce similar plants, while the seeds of the next generation from those hybrids will not consistently have the desired characteristics. Controlled hybrids provide very uniform characteristics because they are produced by crossing two
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which are genetically diverse. Hybrid seed is common in industrial agriculture and home gardening. It is one of the main contributors to the dramatic rise in agricultural output during the last half of the 20th century. Alternatives to hybridization include
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Hybrid seeds are used to improve the characteristics of the resulting plants, such as better yield, greater uniformity, improved color, disease resistance. An important factor is the
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In the US, experimental agriculture stations in the 1920s investigated the hybrid crops, and by the 1930s farmers had widely adopted the first hybrid
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Though, hybrid seeds cannot be saved year by year, because most typically are not self-sustaining.
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heterosis. Elite inbred strains are used that express well-documented and consistent
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David Tay (n.d.). "Vegetable Hybrid Seed
Production".
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Paul Conkin (2008). "5.4 Plant and Animal
Breeding".
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60:) that are relatively good for inbred plants.
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105:October 2014
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176:14 December
145:Seed saving
26:hybrid seed
18:agriculture
275:Categories
214:2011-04-19
156:References
58:crop yield
54:phenotypes
223:cite book
130:F1 hybrid
68:strains.
45:heterosis
22:gardening
291:Breeding
124:See also
77:History
66:inbred
33:plants
286:Seeds
208:(PDF)
201:(PDF)
118:maize
229:link
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