It has a phenomenon associated with it called 'heterosis' - otherwise known as 'hybrid vigor.'.    From Wordnik.com.  [Delta Farm Press RSS Feed] Reference

Hybrid vigour, also known as heterosis, is the phenomenon where two genetically different parents produce fitter, stronger offspring.    From Wordnik.com.  [Yahoo! News: Latest news headlines News Headlines | Top Stories] Reference

Hybrid vigor, also known as heterosis, is the phenomenon by which intercrossing two varieties of plants produces more vigorous hybrid offspring with higher yields.    From Wordnik.com.  [PhysOrg.com - latest science and technology news stories] Reference

Hybrid vigor, also known as heterosis, is the miraculous phenomenon by which intercrossing two varieties of plants produces more vigorous hybrid offspring with higher yields.    From Wordnik.com.  [PhysOrg.com - latest science and technology news stories] Reference

Intercrossing different varieties of plants frequently produces hybrid offspring with superior vigor and increased yields, in a poorly understood phenomenon known as heterosis.    From Wordnik.com.  [Naturejobs - All Jobs] Reference

This is a manifestation of hybrid vigor, or heterosis.    From Wordnik.com.  [Northern Nut Growers Association Incorporated 39th Annual Report at Norris, Tenn. September 13-15 1948] Reference

An interesting aside related to assimilation is one of heterosis.    From Wordnik.com.  [Fine-tuning Immigration, Arnold Kling | EconLog | Library of Economics and Liberty] Reference

In addition, where is the evidence of heterosis in hybrids observed outside of Daphne Major?.    From Wordnik.com.  [On Thursday, the Legg report will be published along with...] Reference

So when two parents from branches that are farther apart than is the norm in the general population, heterosis is said to occur.    From Wordnik.com.  [Fine-tuning Immigration, Arnold Kling | EconLog | Library of Economics and Liberty] Reference

But because of the phenomenon of hybrid vigor (heterosis), the hybrids are considerably bigger than the mean size of their parents.    From Wordnik.com.  [1 Domesticated Banteng] Reference

Attempted explanations have included improved nutrition, a trend towards smaller families, better education, greater environmental complexity, and heterosis.    From Wordnik.com.  [Sound Politics: Actually, We Are Getting Smarter, Mr. Horsey] Reference

But there is still no consensus as to what causes heterosis.    From Wordnik.com.  [PhysOrg.com - latest science and technology news stories] Reference

General article properties pagename = heterosis variant = BE.    From Wordnik.com.  [Citizendium, the Citizens' Compendium - Recent changes [en]] Reference

Researchers study incidence of heterosis for different characteristics.    From Wordnik.com.  [THE MEDICAL NEWS] Reference

This can be taken as evidence for heterosis among human population groups.    From Wordnik.com.  [Science Blog] Reference

Hochholdinger F, Hoecker N (2007) Towards the molecular basis of heterosis.    From Wordnik.com.  [PLoS ONE Alerts: New Articles] Reference

"But there is still no consensus as to what causes heterosis," said Lippman.    From Wordnik.com.  [ Analysis] Reference

Cruzan MB (2005) Contributions of heterosis and epistasis to hybrid fitness.    From Wordnik.com.  [PLoS ONE Alerts: New Articles] Reference

Kapheim KM (2007) Social heterosis and the maintenance of genetic diversity.    From Wordnik.com.  [PLoS ONE Alerts: New Articles] Reference

This is known as introduces new genetic elements and can result in heterosis.    From Wordnik.com.  [Citizendium, the Citizens' Compendium - Recent changes [en]] Reference

This is known as introduce new allelic variation and can result in heterosis.    From Wordnik.com.  [Citizendium, the Citizens' Compendium - Recent changes [en]] Reference

This study marks the first example of a single gene that consistently causes heterosis.    From Wordnik.com.  [PhysOrg.com - latest science and technology news stories] Reference

We show that several traits integrate pleiotropically to drive heterosis in a multiplicative manner.    From Wordnik.com.  [Naturejobs - All Jobs] Reference

Figure 2: sft/+ heterozygosity causes heterosis in distinct genetic backgrounds and growth conditions.    From Wordnik.com.  [Naturejobs - All Jobs] Reference

"The primary reason for crossing was to get these genetics into the herd - heterosis was an added benefit.".    From Wordnik.com.  [FWi - All News] Reference

Figure 3: SFT-dependent heterosis arises from multiple phenotypic changes on component traits that integrate to improve yield.    From Wordnik.com.  [Naturejobs - All Jobs] Reference

Furthermore, LkDT - and VkDT-mutations were used to visualize phylogenetic patchworks depicting polymorphism and social heterosis.    From Wordnik.com.  [PLoS ONE Alerts: New Articles] Reference

Other possible explanations for the difference in seed set are effects of outbreeding depression, inbreeding-avoidance or heterosis.    From Wordnik.com.  [PLoS ONE Alerts: New Articles] Reference

(heterosis) in milking ability, fertility, meat production, and working ability.    From Wordnik.com.  [11 Recommendations and Research Needs] Reference

'' outcrossing '', or '' outbreeding '' genetic elements and can result in heterosis.    From Wordnik.com.  [Citizendium, the Citizens' Compendium - Recent changes [en]] Reference

"There is evidence, albeit anecdotal, that the impact of heterosis goes beyond just attractiveness.    From Wordnik.com.  [The Times of India] Reference

Why does heterosis occur?.    From Wordnik.com.  [innovations-report] Reference

(7) weather conditions; (8) heterosis or effect of cross-pollination on embryo size.    From Wordnik.com.  [Northern Nut Growers Association Incorporated 39th Annual Report at Norris, Tenn. September 13-15 1948] Reference

Tagged: Calabi-Yau manifolds, compactification, extra dimensions, heterosis, String Theory, supergravity, Woody Allen.    From Wordnik.com.  [November « 2008 « Imaginary Potential] Reference