نتایج جستجو برای: tree breeding
تعداد نتایج: 227995 فیلتر نتایج به سال:
In this chapter we discuss tree species that exhibit rapid growth in northern Europe, i.e. the Nordic and Baltic countries. These species include both common indigenous species and introduced species. We continue with an evaluation of current breeding work and the genetic potential of species that may be suitable for biomass production in this region. Because short rotation times are commonly d...
Acoustics have been used to determine wood quality attributes in both standing timber and sawn lumber. Sonic transmission data are collected nondestructively and can act as a surrogate for stiffness, they are directly related to modulus of elasticity (MOE) and closely related to differences in microfibril angle (MFA). Together with wood density, MFA and MOE are the most important wood character...
PREMISE OF THE STUDY Bombax ceiba (Malvaceae), commonly known as silk cotton tree, is a multipurpose tree species of tropical forests. Novel expressed sequence tag-simple sequence repeat (EST-SSR) markers were developed and characterized for the species using transcriptome analysis. METHODS AND RESULTS A total of 33 new EST-SSR markers were developed for B. ceiba, of which 13 showed polymorph...
'Jones Hybrid' hickory is an accession in the National Collection of Genetic Resources for Pecans and Hickories for which information about origin, identity and characteristics is very incomplete. Phenotypic and genetic profiles, when examined in the context of historic literature, provide evidence that the accession in question is 'Siers' a cultivar of Carya × laneyi (an interspecific hybrid b...
As forest geneticists consider physiological adaptations of forest tree populations under various climate change scenarios, they must also take into account likely impacts from new insect pest and disease introductions, as well as increased natural disturbances from native pests. What lessons can be learned from past investments in disease and pest resistance research and genetic improvement, p...
Genetic linkage maps, permitting the elucidation of genome structure, are one of most powerful genomic tools to accelerate marker-assisted breeding. However, due to a lack of sufficient user-friendly molecular markers, no genetic linkage map has been developed for tree peonies (Paeonia Sect. Moutan), a group of important horticultural plants worldwide. Specific-locus amplified fragment sequenci...
this article has long been taken of the description and clarification of dramatic signs as well as the structure of the small book entitled draxt ? ?s?r?g “the babylonian tree” (here after bt); a text having comparatively long history in iranian studies which have been interpreted in different ways, by previous scholars. bt is a versified contest between a goat and a palm tree, originally compo...
Cattle egret Bubulcus ibis (Linnaeus, 1758) is a highly synanthropic species, which has been benefitted by the increase of livestock in recent decades (Sick, 1997). The species originates from the Old World and spread to all the continents, with the exception of Antarctica (Martínez-Vilalta and Moltis, 1992). Three current concerns of this expansion and population growth are: competition for re...
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