نتایج جستجو برای: germplasm preservation

تعداد نتایج: 80365  

2013
Andres Garcia-Lor Gema Ancillo Luis Navarro Patrick Ollitrault

UNLABELLED PREMISE OF THE STUDY Single nucleotide polymorphism (SNP) markers based on Competitive Allele-Specific PCR (KASPar) were developed from sequences of three Citrus species. Their transferability was tested in 63 Citrus genotypes and 19 relative genera of the subfamily Aurantioideae to estimate the potential of SNP markers, selected from a limited intrageneric discovery panel, for on...

Journal: :PLoS ONE 2008
Juan C. Motamayor Philippe Lachenaud Jay Wallace da Silva e Mota Rey Loor David N. Kuhn J. Steven Brown Raymond J. Schnell

Numerous collecting expeditions of Theobroma cacao L. germplasm have been undertaken in Latin-America. However, most of this germplasm has not contributed to cacao improvement because its relationship to cultivated selections was poorly understood. Germplasm labeling errors have impeded breeding and confounded the interpretation of diversity analyses. To improve the understanding of the origin,...

2016
Greg Ziegler Randall Nelson Stephanie Granada Hari B. Krishnan Jason D. Gillman Ivan Baxter

The elemental content of a soybean seed is a determined by both genetic and environmental factors and is an important component of its nutritional value. The elemental content is stable, making the samples stored in germplasm repositories an intriguing source of experimental material. To test the efficacy of using samples from germplasm banks for gene discovery, we analyzed the elemental profil...

Journal: :Pest management science 2003
Robert E Lynch Baozhu Guo Patricia Timper Jeffrey P Wilson

Host-plant resistance is an efficient, economical and environmentally benign approach used to manage many pests and diseases of agricultural crops. After nearly a century of research, the resources and tools have become more refined, but the basic tasks in breeding for resistance have not changed. Resistance must be identified, incorporated into elite germplasm, and deployed in a form useful to...

2014
U. R. SINNIAH S. GANTAIT S. PERIASAMY

Cryopreservation is the science of freezing biological materials and their subsequent storage at very low temperature in liquid nitrogen (-196°C). At such low temperature, metabolic rates are low or completely halted. Recently the need to conserve plant materials has increased tremendously due to extinction. Plants that produce orthodox seeds can be easily stored in the form of desiccated seeds...

2001
S. L. Greene

1995). From a historic perspective, U.S. germplasm collections and U.S. forests were managed to promote and Germplasm collections are viewed as a source of genetic diversity to sustain agricultural production in terms of farm crops support crop improvement and botanical research, as well as support conservation efforts. The United States Department of Agriculture’s and timber. National Plant Ge...

2004
James B. Holland

Exotic germplasm refers to crop varieties unadapted to a breeder’s target environment, and is an important resource for crop improvement. Because genetic diversity within elite cultivars of a crop is limited compared to the variability within the species and its relatives worldwide, genes from exotic germplasm can protect the crop against new biotic and abiotic stresses, and may represent uniqu...

2013
Von Mark V. Cruz Andrzej Kilian David A. Dierig

The advantages of using molecular markers in modern genebanks are well documented. They are commonly used to understand the distribution of genetic diversity in populations and among species which is crucial for efficient management and effective utilization of germplasm collections. We describe the development of two types of DArT molecular marker platforms for the new oilseed crop lesquerella...

Journal: :پژوهش های حبوبات ایران 0
نظامی نظامی پورامیر پورامیر مؤمنی مؤمنی پُرسا پُرسا گنجعلی گنجعلی باقری باقری

in order to study the morphological, phenological and yield characteristics of 70 desi chickpea genotypes, a trial was conducted on 2007 in research farm of agriculture faculty of ferdowsi university of mashhad. in this study, 70 desi chickpea genotypes from ferdowsi university of mashhad seed bank, were planted in plots without replication including one to four planting rows at maximum length ...

Journal: :Agronomy 2022

Germplasm evaluation, classification, characterization, and preservation are the initial requirements for any crop genetic improvement programs meant to promote economically important traits. Mean performance range of different expressible traits through ANOVA showed highly significant differences within various genotypes helped evaluate several promising carrot genotypes. The multivariate anal...

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