Genetic Improvement of Southern Hardwoods: the Current Status of Research
نویسنده
چکیده
~ Genetics research in southern hardwoods has moved, during the past decade, from a minor position in a few organizations to major status in most of the South's forest research establishments. This new interest in hardwood tree improvement has stemmed largely from (1) the increasing use of hardwoods for pulp and (2) a decreasing supply of high-quality hardwood sawtimber. These two aspects of the southern hardwood situation have stimulated broad programs of investigations in which genetics research is essential.
منابع مشابه
Taxonomic status of six populations of the Gobiids (Teleost, Gobiidae) in the southern Caspian Sea basin using COI gene
Morphological similarities of the populations and species of the genus Ponticola in the southern Caspian Sea make their identification difficult based on the provided keys. Molecular markers are used as a supplementary tools to better understanding of the fishes’ taxonomic statues. This study was conducted to understand taxonomic statues of gobiids from 6 rivers (Siah, Zaringol, Babol, Tajan, S...
متن کاملSilvicultural Alternatives in Bottomland Hardwoods and Their Impact on Stand Quality
--Bottomland hardwoods occur on some 35 million acres of forest land in swamps, creek margins, river bottoms, and brown loam bluffs from Virginia to Texas. These hardwood types are very important because the wood has great value and is in demand by forest industries. This article discusses silvicultural alternatives such as site-species relationships, how hardwood timber is used, protection, ti...
متن کاملFactors Affecting Patients Undergoing Cosmetic Surgery in Bushehr, Southern Iran
BACKGROUND Although, there have been extensive research on the motivations driving patient to undergo cosmetic procedures, there is still a big question mark on the persuasive factors which may lead individuals to undergo cosmetic surgery. The present study evaluated various factors affecting patients undergoing cosmetic surgery in Bushehr, Southern Iran. METHODS From 24th March 2011 to 24th...
متن کاملSilvicultural Practices in Forests of the Southern United States: Insect and Disease Considerations’
The relationship between silvicultural practices, e.g. thinning, and pest organisms (insects and diseases) has been investigated extensively in pine species but to a lesser degree in hardwoods. Of critical interest is the potential negative impact to the residual stand resulting from insect damage and diseases that develop as a consequence of silvicultural practices. This is especially true wit...
متن کاملGenetic structure of Caspian Sea southern area honeybee populations, based on microsatellite polymorphism
Genetic diversity is a key component of ecosystems. The aim of the present study was to evaluate the genetic diversity of Iranian native honeybee colonies (Apis mellifera meda L.) located in the northern region. Colonies from 24 locations have been analyzed using microsatellite markers. Samples were collected from Caspian Sea southern area (north of Iran). Six microsatellite markers (A28, A29, ...
متن کامل