hybrid vigor


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hybrid vigor

n.
Increased vigor or other superior qualities arising from the crossbreeding of genetically different plants or animals. Also called heterosis.
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References in periodicals archive ?
Hybrid vigor between native and introduced salamanders raises new challenges for conservation.
"That may well be the real basis for hybrid vigor," says Dooner.
This phenomenon could be attributed to a higher metabolic rate associated with "hybrid vigor".
There are abundant reasons to believe that we are a better people who are ready to embrace our past and present and fully live into the amazing people that we can be showing the world what agronomists might call `hybrid vigor.' America is the country of hybrid vigor."
For the past 60 years, seed companies and universities have experimented with controlling the pollination process of inbred lines, crossing them to produce seeds known as hybrid vigor. The controlled cross-pollination of two inbred corn seed lines - one producing, say, 40 bushels and one producing 35 bushels - can create a hybrid vigor seed that when planted in the same numbers as either of its parent seed, produces up to 250 bushels.
Hybrid vigor against parasites in interspecific crosses between two mice species.
On the contrary, our data show a moderate hybrid vigor effect for hybridizations involving the population with the narrowest bottleneck (M3).
But given the (generally accepted) "dominance" explanation of hybrid vigor, we should expect in time to develop pure lines as good as hybrids.
Hybrid vigor in the strict biological sense of superiority of a corn hybrid over its genetically inbred parents is a general natural phenomenon.
Increased yield of chilli owing to the manifestation of hybrid vigor was observed earlier by Sathiyamurthy (2002), Rani (2002), Kumar (2005) and Karthik (2006).
The lower production of TDM of the hybrids in relation to the Azulao genotype may have been caused by the low capacity of the combination between the genitors, which resulted in lowered hybrid vigor in the progenies.
On the other hand, hybrid vigor, or heterosis, is commonly observed in F1 progeny from two inbred parents, and this is widely exploited in breeding.